Answers
The image shows a zygote dividing by meiosis.
What is cell division?We know that cell division occurs when a cell breaks up to give daughter cells. This could occur by mitosis or by meiosis. In each case, we have two or four daughter cells being formed.
Now we have to look at the image very well. We can see that the process is occurring inside the gamete cells. There is a fertilized egg that divides into two. We know that a fertilized egg is called a zygote.
In conclusion, we can say that, the image shows a zygote dividing by meiosis.
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Related Questions
what if there are no primary consumers in the ecosystem??
Answers
There wouldn't be any secondary consumers in that ecosystem without the primary consumers since there would be no way for carnivores or secondary consumers to get their energy.
Why are primary consumers important?
A primary consumer is important to an ecosystem. They aid in the energy exchange that is necessary for an ecosystem to function properly and avoid collapse. Only primary consumers have the capacity to "harvest" the energy held in producers.
Plants, who are the primary producers, use sunlight to make their own food or photosynthesis. And hence they are known as autotrophs. Following that, primary consumers eat plants. The primary consumers are then eaten for food by secondary and tertiary consumers.
The organisms at the top of the food chain, including humans, then perish. Then, for food, decomposers like bacteria and fungi feed on the remnants. The chemical components of those nutrients are then recycled back into the ecosystem by these decomposers.
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Give one function for this structure
Answers
Answer:
Explanation:
The pen is is the male organ used for urination and intercourse. The pen is located above the scrotum. It is made of spongy tissue and blood vessels. The shaft of the pen is surrounds the urethra and is connected to the pubic bone.
What causes the characteristic thrashing motion of nematodes?
A. the fluid-filled body cavity
B. the pseudocoelom that acts as a hydroskeleton
C. the blunted head and pointed tail
Answers
B. the pseudocoelom that acts as a hydro skeleton causes the characteristic thrashing motion of nematodes.
The longitudinal muscles of nematodes are contracted to move them. The animal moves by thrashing back and forth because to the tremendous internal pressure that forces the body to flex rather than flatten. Nematodes only have longitudinal muscles, not the two bands of muscles found in other worms. They can only move by clenching the lengthy muscles on either side of their body and wiggling forward, which explains their distinctive thrashing motion.The pseudocoelom serves as a lubricant between tissues, houses coelomocytes, and generates turgor-hydrostatic pressure for the entire animal.Because it is fluid-filled, the fluid's hydrostatic qualities enable a more rigid construction, greatly improving the efficiency of the skeletal system and movement.learn more about nematodes here:
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Answer: B. the pseudocoelom that acts as a hydroskeleton
Explanation:
What is a change in the DNA sequence that can be beneficial harmful or niether ?
Answers
Answer:
A mutation
What can cause changes in a DNA sequence?
A mutation is a change in the DNA sequence. There are several different methods by which mutation happens. Of course, chemically produced mutations receive the most media attention. There are a wide range of substances that can cause mutations, usually by attaching to the DNA and causing it to break, requiring an incomplete repair, or by preventing DNA replication, forcing the replication machinery to repeat the DNA poorly.
However, other factors, such as exposure to radiation or light, can also cause DNA mutations. In reality, UV and X ray light are known to cause mutations by changing the DNA's base composition or causing DNA breaks.
Mutations are also spontaneously caused by DNA replication. Although it occurs extremely infrequently, the replication complex does occasionally make mistakes and insert the incorrect DNA base, which leads to a significant amount of mutations over the course of generations.
Thank you,
Eddie
A mutation in the DNA sequence can be beneficial, harmful, or neither, depending on its impact on the organism.
Mutations—changes in the DNA sequence—can affect an organism. Mutations that improve survival and reproduction are helpful. Mutations can make an organism disease-resistant or adaptable.
Mutations can affect the organism's health or fitness. Mutations can cause genetic diseases, diminished fertility, and lower survival rates. Neutral mutations don't affect the organism's phenotypic or fitness. They may occur in non-coding DNA or silently modify the genetic code, leaving the amino acid sequence of a protein untouched.
Mutations' effects depend on their genomic location, gene function, and environment. Some mutations help evolution and adaptability, whereas others harm individuals or populations.
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Brooke was supposed to visit her mother for dinner. She has been in bed all day, however, and does not have the energy to shower and get dressed. Brooke would likely be diagnosed with
post-traumatic stress disorder
a specific phobia
obsessive-compulsive disorder
major depressive disorder
Answers
Answer:
Brooke would likely be diagnosed with major depressive disorder because she's telling herself she has no energy showing lack of interest in what's planned and in other words 'lazy'
She might be suffering from major depressive disorder. As she is lacking the energy to do her work and it could be because of the drained energy in her mind.
What is the reason for such situations ?In this situation a person is either living alone or going through some difficult situations and unable to cope through the situations.
In the cases of excess depression the person is struggling through the mental thoughts and are not able to do their work properly. People like these are usually absent minded and they usually are lacking interest in the crowd.
In such situation the person should go to the family gatherings and the outings, learn to go out of their comfort zone. In such situations people like these situations should talk about their feelings out and try to find the conclusion with a wise situation.
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What blood types are possible for a child with a mother who has a blood type of O, and a father with a blood type of A,
and is homozygous.
Answers
The mother has an O blood type means genetically she has [tex]I^{O} I^{O}[/tex]and the father is homozygous means he has [tex]I^{A} I^{A}[/tex]in this situation the child will have only A blood group and genetically the child will have [tex]I^{A} I^{O}[/tex]. Thus the answer is blood type A.
What is the genetic constitution of all the blood groups?The blood group type will have two genotypes one homozygous condition that is type [tex]I^{A} I^{A}[/tex] or the heterozygous condition that is [tex]I^{A} I^{O}[/tex] but in both conditions phenotypically the person will have type A blood group.
The same happens with the type B blood group where the homozygous [tex]I^{B} I^{B}[/tex]or the heterozygous [tex]I^{B} I^{O}[/tex] in both genotype conditions phenotypically the person will have a B blood group.
This condition is not applied in the O blood group as it will always express in homozygous condition as if A or B present then will dominate so if a person has blood type O then the person always has [tex]I^{O} I^{O}[/tex] in their genotype.
The condition for having blood group O is the father and mother both should have heterozygous genotype then there will be a possibility the child will have O blood group.
Here, in the question, both parents are homozygous as the mother is expressing blood group O then must have homozygous [tex]I^{O} I^{O}[/tex] and it is already mentioned in the question that the father is also homozygous that is [tex]I^{A} I^{A}[/tex] . The Punnett square is given in the image attached.
Hence, as both parents have homozygous genotype and the father has blood type A which is dominant so children will be heterozygous and have A blood group as A is dominant over O.
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9. What does each letter in the diagram below represent?
A.
B.
C.
D.
E.
F.
F
G.
H.
I.
J.
C
Answers
The layers composing the Earth are the core, mantle, and Crust. A) Internal core, B) External core, C) Mesosphere, D) Astenosphere, E) Lithosphere, F) Oceanic crust, G) Continental crust, H) Litosphere, I) Superior mantle, J) Astenosphere
What are the layers of the Earth?Three main layers compose the Earth.
The crustThis is the most external layer.
It is located right upon the mantle and is divided into many plates, that move over it.
It is composed of the oceanic basaltic plate (6-12 km) and the uppermost continental granitic plate (25-70 km).
The mantleThis is the second layer that composes the Earth.
It is a very hot and dense rock that is capable of flowing.
Convection currents occur in this layer, rising hot melted material from the deepest region and sinking cold solid material from the surface.
Three layers compose the mantle,
Upper mantle (40-400km)Transition zone (400-670km)Inner mantle (2285 km)The coreThis is the third layer and is divided into two sublayers,
- the solid inner core (1216 km)
- the liquid outer core (2270 km)
The core is mainly composed of Ferrum and nickel, and its temperature is about 6000ºC.
The extremely high temperatures are closely involved in material circulation, keeping the Earth's surface temperature, and electromagnetic field.
The core composes the EndosphereThe Internal mantle composes the MesosphereThe Transition zone and superior mantle compose the AstenosphereThe Crust composes the LithosphereA) Inner core
B) Outer core
C) Mesosphere
D) Astenosphere
E) Lithosphere
F) Oceanic crust
G) Continental crust
H) Litosphere (Crust)
I) Upper mantle
J) Astenosphere
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In the US, in an average year, 20% of people will help their parents with their printer and 50% will carefully place a spider outside. What is the probability of the population that will both help their parents with their printer and carefully place a spider outside? (Type answer as a probability between 0 and 1)
Answers
Answer:
The probability would be 0.
The probability of the population will be 0.
What are the different types of population ?
A discrete groups of individuals with identifiable characteristics called a population.
It consists of a same group of species resides in a particular geographical location and interbreed there.
In a population not all individuals are able to survive and reproduce because of genetic variations in them.
Finite Population or countable population in which the population can be countable.
Infinite Population or uncountable population in which the counting if the population is impossible.
Existent Population of concrete individuals, whose unit is available in solid form.
Hypothetical Population whose unit is not available known as the hypothetical.
Most of the populations are unstable due to the presence of various physical factors and it act as limiting factors against exponential growth.
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Which of these describes the levels of organization of an animal? A. Tissues are composed of organs, which are composed of cells. B. Organs are composed of cells, which are composed of tissues. C. Organs are composed of tissues, which are composed of cells. D. Tissues are composed of cells, which are composed of organs.
Answers
Answer:
C. Organs are composed of tissues , which are composed of cells .
The animals are generally organized in a fashion that, the organism is composed of organs, which are composed of tissue, and tissues are composed of cells. So, option C is correct.
The cells are called the building block of life and come last under this hierarchy.
The hierarchy which follows the organization structure of cells, tissues, and organs follows the given criteria :
The cells are made up of cellular organelles, which are organized in a fashion that is required for the specific function of a cell.
The collection of a group of cells having the same physiological structure and function makes up the tissue.
The tissues with the same function and structural organization collectively make up the organs.
The different kinds of organs, contributing to myriads of functions of the body, make up a human body, live and well functioning.
Therefore, option C is correct.
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Agoraphobia may be characterized by which of the following
losing the desire to work or learn
having delusions and hallucinations
feeling hot and dizzy
being scared of heights
Answers
Answer:
Feeling hot and dizzy
Explanation:
Vertigo, sweating, feeling dizzy, and a sense of impending unconsciousness or passing out are other symptoms.
Agoraphobia may be characterized by feeling hot and dizzy. The correct option is C.
What is Agoraphobia?An uncommon form of anxiety condition is agoraphobia. Your fears prevent you from going out into the world if you have them. You steer clear of particular locations and circumstances because you fear getting stuck and being unable to receive assistance.
The signs of agoraphobia are fear of transportation in general, wide-open areas (parking lots, bridges), closed-in places (stores, movie theaters) (stores, movie theaters), and throngs of people or lines. It is also a fear in which you van not go outside your home.
The disorders may be pain in fear, chest pain, diarrhea, sweating, dizziness, and swelling.
Thus, the correct option is C. to feel hot and dizzy.
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Name each structure
Answers
Answer:
The organ is the female reproductive organ , the uterus
and the green arrow points to the cervix
Which is not a water quality monitoring parameter?
Select one:
a. habitat
b .turbidity
c. salinity
d. pH level
Answers
What is the purpose of the classification system?
A. to group living organisms from largest to smallest
B. to classify and better understand organisms
C. to organize living organisms into the order they were discovered
D. to understand the uses living organisms can have to society
Answers
the value of a reflex angle lies between
Answers
Answer:
reflex angle is an angle that measures more than 180 degrees and less than 360 degrees
Answer:
more then 180 degree and less then 360 degree
After watching the CrashCourse video on Taxonomy: Life's Filing System, write a summary of three things you
learned about taxonomy from the video. Zooalogy
Answers
Watching CrashCourse video, I learned the 3 basic elements of taxonomy, which are the three domains are Archea (formed by prokaryotic beings, such as archaea), Bacteria (formed by prokaryotic beings, such as bacteria and cyanobacteria) and Eukarya (formed by eukaryotic beings).
What is the concept of taxonomy?Taxonomy is the branch of biology responsible for identifying and classifying all animals and plants that inhabit the Earth, based on the different characteristics they share with each other.
What is taxonomy and examples?Taxonomy is the area of Biology that classifies, organizes and describes living beings. It is like a library that organizes each group into its categories, in an order that facilitates understanding and searching for features.
With this information, we can conclude that Taxonomy is a method used in biology to name, identify and classify living beings.
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What makes human beings more dominant than other species?
use of technology
ability to reproduce
ability to move
life span
Answers
Answer:
use of technology and life span and also ability to reason
30 points!! Please helppp!! It’s the last question!! The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Answers
These are synapomorphies, or shared derived features. These are the traits that arose in particular groups of creatures' progenitors and were then passed on to those groups' offspring (or lineages).
What is synapomorphies?A unique character or character state that has evolved from its ancestor is known as an apomorphy.An apomorphy that is shared by two or more taxa is referred to as a synapomorphy and is thought to have originated in those taxa's most recent common ancestor. Synapomorphy suggests homology in cladistics.A characteristic or trait obtained through evolution from a similar ancestral form and shared by two or more taxonomic groups.Synapomorphies are traits that a group of taxa share because they descended from a single ancestor. Thus, synapomorphies provide as proof of historical connections and the corresponding hierarchical structure.An advanced character state that is shared by two or more taxa and that is obtained through evolution.It is inherited from the most recent common ancestor, whose own ancestor is presumed not to contain such qualities.Learn more about synapomorphies here:
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Which of the following best describes the action of ATP Synthase
Answers
Answer:
The function of ATP synthase is to synthesize ATP from ADP and inorganic phosphate (Pi) in the F1 sector. This is possible due to energy derived from a gradient of protons which cross the inner mitochondrial membrane from the intermembrane space into the matrix through the Fo portion of the enzyme
Explanation:
hope it will help you
Explain three main features of the following: a) Glycolysis b)Kreb's cycle c)Electron transpot chain
Answers
Answer:
A)Glycolysis is one method that cells use to produce energy.
B)a sequence of reactions in the living organism in which oxidation of acetic acid or acetyl equivalent provides energy for storage in phosphate bonds called also citric acid cycle, tricarboxylic acid cycle.
C)electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation.
Which of the following is the movement of molecules along a concentration gradient by spontaneous random motion to achieve a uniform distribution?
Answers
Diffusion is the movement of molecules along a concentration gradient by spontaneous random motion to achieve a uniform distribution.
What is diffusion?Diffusion is the movement of water vapor from regions of high concentration (high water vapor pressure) toward regions of lower concentration.
Diffusion can also be defined as the random movement of molecules (fluids) along a concentration gradient until even distribution is achieved.
Therefore, diffusion is the movement of molecules along a concentration gradient by spontaneous random motion to achieve a uniform distribution.
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Most of the air we breathe is made of what molecule?
A. Carbon dioxide
B. Water vapor
C. Nitrogen
D. Oxygen
Answers
Answer:
C. Nitrogen
Explanation:
The composition of air is as follows:
nitrogen 78%
Oxygen 21%
carbon dioxide 0.03 %
water vapour 0.2 to 0.4 %
Genotype: BBee
Phenotype:
DONE
V fur and
V eyes
Answers
[tex]black \: dominant = BB \\ phenotype = black \: fur \\ \\ red \: eyes \: recessive = ee \\ (not \: masked \: b y \: the \: dom \: trait) \\ phenotype = red \: eyes[/tex]
Answer:
Explanation:
Genotype: BBee
Phenotype:
✔ black
fur and eyes
red
Bona has started reaction to the sound of a loud "POP". immediately before the pop,a light flashes.after several times.bona has started reaction the flash of light.
A. what is unconditional stimulus
B, what is confidential stimulus
C, what is NS
D, what is unconditional response
Answers
The flash of light thus associated can now be called the conditioned stimulus.
What is stimulus?The term stimulus has to do with response to particular occurrence. This is well captured in the area of behavioral psychology. We know that the organism can be trained to respond to a certain stimulus when it is presented.
Now if a stimulus elicits a particular reaction and then another stimulus is presented immediately after the first one such that the organism learns to associate the second stimulus with the first, the organism would over time begin to respond to the second stimulus in the same manner as the first.
Now we can see that in this case, the light flash follows the POP sound. This implies that organism would overtime associate the sound and the light. This flash of light thus associated can now be called the conditioned stimulus.
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What would happen if in a pcr reaction you used a dna polymerase isolated not from thermus aquaticus, but from an organism that grows at lower temperature?.
Answers
There would be very little or no DNA produced if in a pcr reaction you used a dna polymerase isolated not from thermus aquaticus, but from an organism that grows at lower temperature .
What is the purpose of PCR?
To amplify (copy) a gene so it can be detected.
How do the strands separate during PCR?
The hydrogen bonds between the two strands are broken by the DNA polymerase. During the annealing process, the primers split the strands. - The hydrogen bonds between the two strands are broken by the high heat of the denaturation stage.What is a PCR test ?
Targeting particular DNA fragments and amplifying (increasing in number) them artificially is done using the polymerase chain reaction technology. Describe how primers are used in PCR. The primer is a synthetic DNA strand that has bases that are complementary to the bases at the start of the DNA fragment that will be amplified.Learn more about PCR
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What are the ecological relations the takes place in terrestrial ecosystem grassland?
Answers
A terrestrial ecosystem is a population of land-based species and the relationships between biotic and abiotic elements in a specific space. The tundra, taigas, temperate deciduous woods, tropical rainforests, grasslands, and deserts are a few examples of terrestrial ecosystems. A location's temperature range, average annual precipitation, soil type, and amount of light all affect the sort of terrestrial ecosystem that can be found there.
What is an ecosystem?Plants, animals, and other species are biotic factors. Along with rocks, temperature and humidity are abiotic variables.The health of the entire Earth system is determined by ecosystems, which are the basis of the biosphere.Every component of an ecosystem is directly or indirectly dependent upon every other component. An ecosystem's temperature changes frequently have an impact on the types of plants that may flourish there, for example. Animals that rely on plants for food and shelter must evolve with the times, relocate to another ecosystem.Even the Gobi's chilly desert ecosystems are different from Antarctica's icy desert ecosystems. A continent almost entirely composed of barren, Antarctica is covered by a massive ice sheet. This arid ecology supports only a small number of birds, including skuas, and only a few mosses thrive there.To learn more about ecological, refer to:
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Which molecules are added to an electrophoresis buffer for the purpose of denaturing dna?
Answers
Formamide molecules are added to an electrophoresis buffer for the purpose of denaturing DNA.
What is the purpose of the buffer during electrophoresis?A laboratory procedure called electrophoresis is used to divide DNA, RNA, or protein molecules according to their size and electrical charge. The molecules are moved by an electric current through a gel or other matrix. In the case of Denaturing Gradient Gel Electrophoresis (DGGE), the gradient can be an electrical field or a denaturant such as a solution of urea and formamide.
Size, charge, and other characteristics are used in electrophoresis to separate macromolecules like protein and nucleic acids. Scientists utilize buffer to transport the charge through the gel for electrophoresis that separates by charge. Additionally, the buffer keeps the gel's pH steady, reducing alterations that would take place in the protein or nucleic acid if the pH were to become unstable.
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Why are SNPs important to the study of genetics?
A. They are only found in primates.
B. They are sources of variation that can help scientists better study genomes.
C. These are the only places on the genome that do not code for anything.
D. These are the places on the genome that have not been sequenced.
Answers
Answer:A
Explanation:
The Greek scientist Galen theorized that:
A. Food was turned into blood, and when it reached the heart it was mixed with air to make 'spirit.'
OB. That heartrate can be determined by measuring the pulse.
C. That the heart and lungs were linked, and worked together to sustain life.
D. Blood was pumped from the heart, through the body, and back to the heart.
Answers
Answer:
A. Food was turned into blood, and when it reached the heart it was mixed with air to make 'spirit.'
Explanation:
Galen believed a theory of pneuma. That is, he believed that blood contains "vital spirits" released into it by the brain.
Part C
AP wave is a type of seismic wave called a longitudinal wave, or pressure wave. Longitudinal waves occur when the
material that carries the wave is compressed and stretched. Aside from seismic waves, what is an example of a
longitudinal wave that you have observed?
Answers
Answer:
Sound wave is an another example of longitudinal wave. Sound wave is a vibration that is transmitted through a medium, such as air, water, and metals. Ultrasonic wave is defined as “inaudible sound with high frequency for human” the frequency of which generally exceeds 20 kHz. These days, sound wave which is not intended to be heard is also called ultrasonic wave.
Answer: A wave traveling through a compressed spring or a sound wave traveling through the air are examples of longitudinal waves.
Explanation: Simple answer from Edmentum
6. Living organisms have _____
material which codes for its growth and development
Answers
Answer:
genetic
Explanation:
DNA is a form of genetic material. DNA contains the necessary instructions for growth and development.
Living organisms have genetic material which codes for its growth and development.
Thus, Every living creature shares a few traits. The instructions for inheritance are encoded in the genetic code, and children typically resemble their parents.
Asexual reproduction produces children that share the characteristics of their parents. Offspring from sexual reproduction are sometimes different from their parents.
Energy and resources are used by living things to expand, change, and procreate. A group of chemical processes known as metabolic reactions are involved in these life activities.
Organisms have the ability to recognize changes in their surroundings and react to these stimuli. Most living things need their internal surroundings to stay within a pretty narrow range in order to sustain equilibrium.
Thus, Living organisms have genetic material which codes for its growth and development.
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