Because more water than solutes are reabsorbed between Bowman's capsule and the collecting duct, specific gravity rises.
What is bowman's capsule?The Bowman's capsule, a component of the nephron, creates a sack that resembles a cup and surrounds the glomerulus. The "Bowman's space," which is adjacent to the proximal convoluted tubule of the nephron and signifies the beginning of the urinary space, is enclosed by Bowman's capsule.The glomerulus is protected by a two-walled pouch called Bowman's capsule. Bowman's space is the term for the area between the capsule's walls. The glomerular capsule, the Malpighian capsule, and the renal corpuscular capsule are among additional names for Bowman's capsule.The Bowman's capsule is a portion of the human kidney's nephron. By permitting water molecules and tiny molecules of other substances to flow through its selectively permeable membrane, Bowman's capsule performs the ultra-filtration process. Thus, glomerular filtrate is formed.Learn more about bowman's capsule here:
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By which proposed molecular mechanism does ca2 promote fusion of synaptic vesicles?
Through binding and inducing changes in synaptotagmin which causes the plasma membrane to curve, thus, facilitating fusion.
Ca2+ triggers synaptic vesicle exocytosis, therefore, releasing the neurotransmitters contained in the vesicles and initiating synaptic transmission. Synaptotagmin (syt) is a Ca2+ sensor which can induce fast and synchronous neurotransmitter release.
Synaptic transmission amidst pre- and post-synaptic neurons occurs when the pre-synaptic neuron terminal is temporarily depolarized upon an action potential, thereby, opening Ca2+ channels near the active zones of synapses. Ca2+ flows into the cytoplasm as the extracellular Ca2+ concentration is much higher than the cytoplasmic concentration . Successively, Ca2+ triggers fusion of neurotransmitter-filled synaptic vesicles with the presynaptic membrane in less than a millisecond.
Neurotransmitter molecules are released into the synaptic cleft upon fusion, which then bind to the receptors located in the postsynaptic membrane.
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Which genetic change causes alterations in only one or a few nucleotide bases?
The genetic change causes alterations in only one or a few nucleotide bases in known as mutation.
A mutation is a change in a brief section of a genome's nucleotide sequence. Another frequently replaces one nucleotide in point mutations; other changes involve the insertion or deletion of one or more nucleotides.
Errors in DNA replication or the harmful effects of mutagens, such as chemicals and radiation, which react with DNA and alter the architecture of individual nucleotides, are the leading causes of mutations.
DNA repair enzymes are present in all cells and work to reduce the frequency of mutations. These enzymes reduce genetic information loss, double-strand break formation, and DNA crosslinking by repairing DNA damage.
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The examination of blood film should be performed at _____ to detect microfilariae.
Answer:
Night
Explanation:
Usually, a microfilariae blood test is conducted at night to coincide with the appearance of microfilariae.
Money that mining companies may be required to post in order to begina mining project
which ensure they will honor their environmental obligations is a(n)
environmental impact statement
down payment
security deposit
bond
Money that mining companies may be required to post in order to start a mining project is environmental impact statement
Mined materials are needed to build roads and hospitals, to build automobiles and houses, to make computers and satellites, to generate electricity, and to deliver the many other goods and services that consumers enjoy. In addition, mining is economically vital to producing regions and countries.
What is mining project?mining project means mining harbored on under 1 or more mining leases as a single integrated undertaking.
What are the 4 methods of mining?There are four major mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more costly and are often used to reach more serious deposits. Surface mines are commonly used for more shallow and less valuable warranties.
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Question 7: what conclusions can you make about how a change in the condition of the ocean affects the different species in coral reefs?
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What conditions are necessary in order to use a t-test to test the differences between two population means?.
The two samples must be independent and each must be drawn at random from any population. The two samples must be independent and each must be drawn at random from a healthy population.
At the very least, nominal scale data are required. There must be normal populations. There must be knowledge of the two population standard deviations. The samples depend on one another.
What is nominal scale?
A nominal scale is a measurement scale that is used to categorize events or things into distinct groups. This type of scale only needs one-of-a-kind identifiers to mark each separate category instead of requiring the usage of numerical values or categories ranked by class.
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What is the role of glucose in respiration?
Answer:
One molecule of glucose goes through the process of cellular respiration to produce 36 ATP. Glucose is broken down to form pyruvate during the first step of cellular respiration, which is then used to fuel the citric acid cycle and oxidative phosphorylation.
Glucose is used to make energy in cellular respiration.
It produces the molecule ATP, the main energy storage and transfer unit of a cell.
Also, Cells this in order to remain healthy and active.
Explanation:
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A model that describes the population of a fishery in which harvesting takes place at a constant rate is given by:_________
A model that describes the population of a fishery in which harvesting takes place at a constant rate is given by (dP/dt) = kP-h . In this k and h is positive constants.
The population growth model is based on the assumption that grows at rate of proportional to size of population . p is the population and k is relative growth rate. dp/dt is signal derived from pressure , typically ventricular blood pressure, indicated the change in pressure over time.
This model for population growth known as the logistic differential equation is dp/dt=kp. According to the population growth model that once population size exceeds available resources and population growth decrease dramatically.
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How are the reproductive cycles of a fungus and a pteridophyte similar?
Fungi of the phylum Basidiomycota form mycorrhizal associations with orchids, a type of flowering plant. How do these associations benefit both the fungi and the orchids?
Fungus and a pteridophyte organisms produce haploid spores and exhibit diploid and haploid stages.
What is haploid stages?After mitosis, diploid cells are created that have the same genetic makeup as their parent cell. After meiosis, due to genetic cross-over, the haploid cells are not genetically identical to their parents. The sporophytic stage of the lifecycle is the diploid stage. The gametophytic stage of the lifecycle is the haploid stage.A diploid zygote is created when gametes produced by the multicellular haploid stage (the gametophyte) join together during mitosis. The zygote grows into a multicellular, mature diploid organism called a sporophyte, which uses meiosis to produce haploid spores.Any member of the eukaryotic group of organisms, which also includes the more well-known mushrooms and microbes like yeast and mold, is referred to as a fungus.Learn more about haploid stage here:
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Aside from having potent anti-inflammatory effects, glucocorticoids also promote homeostasis of which system?
Along with anti-inflammatory effects, glucocorticoids also promote homeostasis in T lymphocytes.
what are the role of glucocorticoid?
Glucocorticoids are steroid hormones have anti-inflammatory effects. as well as glucose homeostasis activity.
The hormones secreted from the cortex regulate glucose metabolism, synthesis in the adrenal cortex.
It promote gluconeogenesis in liver, but in skeletal muscle and white adipose tissue decrease glucose uptake, modulate the function of pancreatic α and β cells and help in to regulation of glucagon and insulin.
It also affect on glucose homeostasis to preserve plasma glucose for brain during stress.
Hence, glucocorticoids also promote homeostasis in T lymphocytes.
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You dropped your 24-hour-old mannitol salt agar and macconkey agar plates of staphylococcus aureus. How would you visually be able to tell the difference now?
S.aureus on mannitol salt agar will have a yellow halo (fermentation), whereas the crystal violet on the MacConkey agar would inhibit its growth.
Staphylococcus aureus:About 30% of people have a type of bacteria called Staphylococcus aureus in their noses. Staphylococcus often doesn't hurt anyone, although occasionally it might result in infections. These staphylococcus infections, which can be serious or lethal in healthcare facilities, include:
When bacteria enter the bloodstream, it is called bacteremia or sepsis.Pneumonia is a disease that primarily affects persons with underlying lung conditions, especially those who are using mechanical ventilators.Endocarditis is a heart valve infection that can cause heart failure or stroke.Osteomyelitis is a bone infection that can be brought on by staphylococcus bacteria entering the circulation or by direct contact, such as after trauma (such as a foot puncture wound or IV drug usage).Learn more about staphylococcus here:
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Once habituation occurs, a new stimulus causes responsiveness to return to a high level, an increase called?
Once habituation occurs, a new stimulus causes responsiveness to return to a high level. This increase is called recovery.
Habituation is one of the simplest and commonly chosen forms of learning. It lets people tune out unnecessary stimuli and focus on the things that matter. Habituation is something that is happening on a daily basis at the time of any kind of learning but the person is usually unaware of it.
For example, if you are studying mathematics with music on it may feel distracting in the beginning, but habituation lets you tune out the noise and focus on what you are trying to learn.
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Which class of dot and iata hazardous materials encompasses human and animal pathogens?
From the DOT and IATA classifications, hazardous materials encompassing human and animal pathogens are marked as category B.
What is DOT and IATA?The term DOT stands for Department of Transportation while the term IATA stands for International Air Transport Association (IATA). These two agencies are quire responsible for the shipping of hazardous substances.
These agencies tend to classify hazardous substances into different groups and this informs how they are to be transported from one place to another.
Hence, according to the DOT and IATA classifications, hazardous materials encompasses human and animal pathogens are marked as category B.
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Why are the exact timing and nature of anagenesis and cladogenesis difficult to infer from the fossil record?
We cannot infer exact timing and nature of anagenesis and cladogenesis from fossil record because,
There are gaps in the fossil record because it is difficult to achieve the conditions needed for fossilization.In comparison to species in other habitats, creatures that dwell where sediment is actively being deposited (such as beaches and wetlands) are more likely to become fossilized. Some organisms are more likely to decompose slowly and leave fossils behind, such as those with hard features like bones or shells.What is anagenesis? One taxon replaces another without branching in a single lineage as a result of evolutionary change is known as anagenesis.What is cladogenesis?The process by which a higher taxon or new group of animals emerges through evolutionary divergence like branching from an ancestor is known as cladogenesis.What is fossil record?Paleontologists, archaeologists, and geologists use the fossil record to put significant occurrences and species in the right geologic epoch. It is based on the Law of Superposition, according to which the lower layers of undisturbed rock sequences are older than the upper levels.The preserved remnants or traces of extinct animals, plants, and other species are known as fossils.This is because they demonstrate that earlier life on Earth was distinct from the species present now, fossils are crucial pieces of evidence for evolution.
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Which hormone released by the highlighted structure inhibits the secretion of fsh only inhibin?
Inhibin hormone released by the highlighted structure inhibits the secretion of FSH only.
What is inhibin hormone?A protein called inhibin is secreted by the granulosa cells in women and the Sertoli cells in men. It decreases the amount of LH-releasing hormone in the hypothalamus and prevents the pituitary gland from producing and releasing follicle-stimulating hormone.Inhibin is a factor in the feedback control of FSH secretion in both males and females going through puberty. Follistatin suppresses FSH-subunit expression like inhibin, whereas activin enhances it, which in turn influences FSH production and secretion.Inhibin A is secreted by the corpora lutea and dominant ovarian follicles in women, which helps to explain why levels are so high during the late follicular and luteal stages. During the late luteal and early follicular phases of the menstrual cycle, inhibin B is reciprocally raised.Learn more about inhibin here:
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Question: Which hormone released by the highlighted structure inhibits the secretion of FSH only?
Which receptor fires continuously as long as a stimulation is applied?
Type I cutaneous mechanoreceptor (Merkel disc), Type II cutaneous mechanoreceptor (Ruffini corpuscle), thermoreceptor, muscle spindles are the receptors fires continuously as long as a stimulation is applied. Thus, option b, f, g, h are correct.
what are the role of receptors?
Receptors are the sensing protein molecule which bind to specific molecule in cell called as ligand.
The ligand can be a drug or any endogenous molecule like neurotransmitters, hormones, etc.
Based on molecular structure and mode of action four major types of receptors are found such as G-protein coupled receptors, ligand-gated ion channel receptors, Nuclear receptors, Kinase-linked receptors
Almost all the receptors have endogenous ligands such serotonin, acetylcholine etc.
Hence, option b, f, g, h are correct.
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Your question was incomplete. Hence the probable question was
Which receptor fires continuously as long as a stimulation is applied? Select all that apply.
a) Corpuscle of touch (Meissner corpuscle)
b) Type I cutaneous mechanoreceptor (Merkel disc)
c) Lamellated (Pacinian) corpuscle
d) Hair root receptor
e) Photoreceptor
f) Type II cutaneous mechanoreceptor (Ruffini corpuscle)
g) thermoreceptor
h) muscle spindles
Biomolecules are made from simple monomers, yet you find a very high level of diversity. What chemical features make diversity in each category of biomolecules possible?
Chemical features like 3 dimensional structure and chemical bonding are responsible for diversity in biomolecules although they are made from simple monomers.
In the case of carbohydrates, both starch and glycogen are made up of glucose monomers yet they differ in the functions which they perform in our body. This difference is because of the chemical bonding and the 3 dimensional structure.
Similarly in protein biomolecules, amino acids act as the monomers but they differ in function due to their 3 dimensional structure. Nucleotides are the building blocks of both RNA and DNA. RNA and DNA perform different functions in the body. DNA stores ad transfers genetic information while RNA is responsible for directly coding for amino acids.
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If an organism is catalase positive, which aerotolerance categories could it be in?
If an organism is catalase positive, it is in staphylococcus aerotolerance categories.
Catalase testing is used to distinguish between Streptococci (catalase-negative) and staphylococci (catalase-positive). The catalase enzyme works to counteract hydrogen peroxide's bactericidal effects. Hydrogen peroxide (H2O2) is quickly broken down into water and oxygen by catalase.
Bacteria that use oxygen for breathing create the enzyme catalase, which shields them from the harmful byproducts of oxygen metabolism. Strict aerobes and facultative anaerobes are both catalase-positive bacteria, although they can all respire utilising oxygen as a terminal electron acceptor. Anaerobes or facultative anaerobes that solely ferment and do not respire using oxygen as a terminal electron acceptor can be catalase-negative bacteria (i.e. Clostridium).
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What are the priority functions of the gallbladder and why it is essential to aid in digestion?
The repository of bile produced by the liver is one of the gallbladder's top priorities.
Bile is required to break down the body's fats and lipids, making it vital for digestion. In addition, it helps in the metabolism of bilirubin, which is produced when RBCs break down.
The gallbladder serves several essential purposes, including the following:
To store and purify bile The ability to empty and restock its bile reserves in response to intestinal hormones like cholecystokinin. To assist in controlling the bile's chemical makeup (the percentage of water, bile salts and more) To regulate the small intestine's bile flow. To contract (secreting bile into the biliary tract and duodenum)To learn more about gallbladder click here
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An unknown bacterium produces colorless colonies when inoculated onto an emb plate. predict what you would see if you inoculated that same unknown onto the mannitol salt agar media?
The colourless colonies are only the gram-negative bacterium that will grow as the selective media Eosin Methylene Blue (EMB) followed by mannitol salt agar (MSA), which will only allow one type of microorganism to grow.
Eosin Methylene Blue (EMB) agar is a differential microbiological medium that gives a colour indicator to distinguish between organisms that digest lactose and those that do not while significantly inhibiting the development of Gram-positive bacteria. In laboratories, the selective medium is crucial for differentiating gram-negative microorganisms.
Both EMB (Eosin methylene blue) and Mannitol Salt Agar (MSA) are selective in that they only permit the growth of Gram-negative bacteria.
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The neurotransmitters that are partially responsible for the ""high"" that is associated with passionate love are chemically similar to?
The neurotransmitters that are partially responsible for the "high" that is associated with passionate love are chemically similar to the drugs, amphetamines.
The neurotransmitters responsible for passionate love are dopamine, norepinephrine, and serotonin which show similar effects as shown by amphetamines.Amphetamines are drugs given to patients to help them deal with mental illnesses like insomnia and depression.Passionate love gives the same feelings as taking drugs such as amphetamines.Thus, the neurotransmitters that are partially responsible for the "high" that is associated with passionate love are chemically similar to the drugs, amphetamines.
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The __________ of pregnancy is called the anabolic phase because the mother is building up her stores of fat, nutrients, and glycogen.
The first half of pregnancy is called the anabolic phase because the mother is building up her stores of fat, nutrients, and glycogen.
What is anabolic phase?
Within 45 minutes after exercise, a crucial phase known as the anabolic phase begins. Muscle cells are very sensitive to insulin during this time, therefore it's important to consume the right nutrition if you want to increase your muscle endurance and strength.What is anabolic and catabolic process?
The creation of complex molecules from simpler ones is known as anabolism. These chemical processes call for energy. Complex molecules are broken down into smaller ones during catabolism. These processes produce energy.What is the primary growth stimulator of the fetus?
The main growth inducer for the fetus is insulin-like growth factor-1. A slowed fasting metabolism is a sign that the mother is in the catabolic phase of pregnancy.Learn more about anabolic phase
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In 2008, which country's greenhouse gas emissions surpassed those of the united states?
China's greenhouse gas emissions surpassed those of the united states.
Due to rising energy consumption brought on by an expanding economy, China has surpassed the United States as the largest emitter of carbon dioxide, the primary greenhouse gas. The United Kingdom was the leading emitter of CO2 in 1850, with emissions about six times higher than those of the United States, which came in second.
The final three countries on the list of top emitters were France, Germany, and Belgium. China was the world's top emitter in 2011, followed by the US, India, Russia, and Japan. It's interesting to note that while being the second-largest emitter in the world in both years, the United States' emissions in 2011 were 266 times more than those in 1850.
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Protein folding involves a transition from a more disordered state to a more ordered state. This entropic penalty does not prevent spontaneous folding because?
Given that the surroundings' net ΔS is positive and the process as a whole has a negative G, this entropic cost does not stop spontaneous protein folding.
Description of the protein folding and entropy penalty scenario:
The decrease in the solvation zone is linked to a considerable gain in positive entropy, which compensates for the entropic penalty brought on by the greater organization in the protein folding condition. The hydrophobic effect is another name for this phenomenon. The operation remains spontaneous as a result of allowing the net Gibbs free energy shift should become minus.Due to the lack of stabilizing connections, an unfolded protein has a high configurational entropy as well as a high enthalpy. The entropy and enthalpy of a folded protein are greatly reduced. Here, there is a compromise between H and S. The S component is weighted more heavily by increased temperature because ΔG = ΔH - TΔ S, which means that unfolding is favored by greater temperature.Learn more about protein folding here:
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The complex of dna and protein that makes up a eukaryotic chromosome is properly called __________.
The complex of DNA and protein that makes up a eukaryotic chromosome is properly called chromatin .
Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells.
What is the chromatin and its function?
To create chromosomes, chromatin fibers are coiling and condensing. Numerous cellular functions, including DNA replication, transcription, DNA repair, genetic recombination, and cell division, are made possible by chromatin.What is chromatin in cell?
Chromosomes in eukaryotic cells are made of chromatin, a compound of DNA and proteins. Nuclear DNA is extremely compressed and wrapped around nuclear proteins in order to fit inside the nucleus; it does not exist as free linear strands.Where is chromatin found?
Chromatin is a genetic material or a macromolecule comprising DNA, RNA, and associated proteins, which constitute chromosomes in the nucleus of a eukaryotic cell. This chromatin is located within the cell nucleus.Learn more about chromatin
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What substance decreases during a reaction and can be used to measure the activity of an enzyme?
Answer:
substrate
Explanation:
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The anterior pituitary receives hypothalamic input through the portal blood supply. what is the advantage of this type of anatomical relationship?
The advantage of this type of anatomical relationship is that this enables the pituitary to receive signals before sending hormones to the rest of the body through the blood.
The anterior pituitary, a significant component of the endocrine system, is the glandular anterior lobe that, along with the posterior lobe (also known as the posterior pituitary or neurohypophysis), constitutes the pituitary gland (hypophysis).
Stress, growth, reproduction, and lactation are just a few of the physiological activities that the anterior pituitary controls.
Blood tests that assess hormone levels are frequently used to determine if the anterior pituitary and the organs it controls are functioning properly.
The hypothalamus-hypophyseal portal veins deliver hypothalamic releasing and inhibitory hormones directly to the anterior pituitary gland.
Certain hormones from the hypothalamus bind to receptors on particular anterior pituitary cells, controlling how much of the hormone they generate is released.
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In response to a specific stimulus, autonomic reflex arcs can trigger which responses?
In response to a specific stimulus, autonomic reflex arcs can trigger smooth muscle contraction, cardiac muscle contraction and secretion by glands.
An element of the peripheral nervous system that controls unconscious physiological functions is the autonomic nervous system. The reflex arc is a unique kind of neural circuit that starts with a sense neuron at a receptor (for instance, a pain receptor in the fingertip) and ends with a motor neuron at an effector (e.g., a skeletal muscle).
Heart rate, digestion, respiration, salivation, sweat, pupillary dilation, micturition (urination), and sexual desire are all influenced by the ANS. Because sympathetic and parasympathetic activation are recruited quickly and synchronously, autonomic reflex arcs are complicated in character.
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Energy flows through ecosystems by way of trophic levels. where does the original energy come from? a. food b. sunlight c. producers d. decomposers
The correct answer is B) Sunlight.
Sunlight is the main source of energy that flows through the ecosystems via different trophic levels.
How sunlight is converted into transferable energy?A few percentage of sunlight is termed Photosynthetically active radiation (PAR). This light has a wavelength of 400-700 nm. This is the light that plants use for the process of photosynthesis.
Plants use this energy to convert water and carbon dioxide into glucose and oxygen with the help of chlorophyll. The glucose formed is the energy product of the reaction.
So plants are called producers because they can make energy by their own. Consumers consume plants for energy requirements and so on.
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Characid fishes are found naturally only in south america and africa. Fossils of these fish are not found on any other continents. What is the most likely explanation of this distribution pattern?
Characid fishes arose prior to the separation of the African and South American continents us the most likely explanation of this distribution pattern.
What is Characid fishes?The family Characiformes, sometimes known as the characids or characins, includes freshwater subtropical and tropical fish. The term "characins" has been used historically, but scientists now prefer the term "characids" to represent the group's status as a largely monophyletic family rank group.The order Characiforms contains the Characidae family. The bodies of characiforms are virtually always scaled, they have well-developed teeth, a pelvic fin, and typically an adipose fin.There are many different types of environments that these fish call home. From southwest Texas and Mexico through Central and South America, they are native to the Americas. Although many of these fish are found in rivers, some, like the blind cave tetra, actually live in caves.Learn more about Fossil here:
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Question: Characid fishes are found naturally only in South America and Africa. Fossils of these fish are not found on any other continents. What is the most likely explanation of this distribution pattern?
A) Characid fishes arose prior to the separation of the African and South American continents
B) Characid fishes arose in the South Atlantic Ocean and migrated to Africa and South America
C) These fishes arose in either Africa or South America and migrated across the South Atlantic Ocean to another continent
D) Convergent evolution is responsible for the distribution of characin fishes