Explanation:
Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.
The demands of a different environment or the characteristics of the members of the new group will differentiate the new species from their ancestors.
Allopatric speciation (1) occurs when a species separates into two separate groups which are isolated from one another.
Each species develops differently based on the demands of their unique habitat or the genetic characteristics of the group that are passed on to offspring.
When small groups of individuals break off from the larger group and form a new species, this is called peripatric speciation (2).
The main difference between allopatric speciation and peripatric speciation is that in peripatric speciation, one group is much smaller than the other.
Like allopatric and peripatric speciation, different habitats influence the development of different species in parapatric speciation.
Sometimes a species that is formed by parapatric speciation is especially suited to survive in a different kind of environment than the original species.
Sympatric speciation occurs when there are no physical barriers preventing any members of a species from mating with another, and all members are in close proximity to one another.
The two types of maggots are not different species yet, but many scientists believe they are undergoing the process of sympatric speciation.
Who do you believe is guilty of the murder? What evidence supports your conclusions? (4 points)
Right from time immemorial, guilty is considered a murder situation in as much as one as been confirmed truthfully responsible as what one as been charged of.
What is murder?This is a deliberate act of killing another being, especially human.This is a crime against humanity and it is punishable.
Guilty means to be responsible for a dishonest act especially judged to have committed a crime.
Evidence which shows that guilty is a murder is simply in the scriptural books such as the Bible and Qur'an. The judge in his book too has whatever one is guilty of as a murder in his book.
So therefore, right from time immemorial, guilty is considered a murder situation in as much as one as been confirmed truthfully responsible as what one as been charged of.
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Answer:
Steve O'Hare
Blood Type Match
Explanation:
The murderer was the boss, Steve O'Hare, because the blood on the door matched his blood, so he possibly struggled to kill her and she was able to hit him or try to defend herself which is possibly why his blood was on the door
What happens when the number of organisms in an environment is higher than the carrying capacity? A. The population will increase slowly. B. The population remains the same. C. The population will increase quickly. D. The population will decrease.
Answer:
When the number of organisms in an ecosystem exceeds the carrying capacity, the population will decrease.
Please see the explanation!
Explanation:
The maximum that can be maintained forever is the concept of "carrying capacity." This can only be rationally understood as the highest number that can be maintained using exclusively renewable resources. It can only be exceeded by using resources more quickly than they can be replenished.
The population gets wiped out (not by old age mortality) back to the number that can be maintained using only renewable resources when those resources become limited, as they must by definition.
Remember that every population is trying to expand, therefore if a species finds a resource that it can use more quickly than it replenishes, the population will undoubtedly expand to use that newly discovered capability. Another way to put this is to say that when the species average is x newborns and the subsistence supply is steady, (x-2)/x children must perish. Less offspring must perish than the formula predicts when the species finds a new non-renewable source of food, increasing the subsistence supply.
It should be noted that there are plainly too many people in the world. Over the past few hundred years, we have developed various technologies that have increased subsistence extraction and decreased waste. Of course, we have multiplied to occupy that additional space. In order to provide enough food to sustain 7+ billion people at once, we need fossil fuels and a number of other resources that do not replenish as quickly as we use them. The last time humanity were able to maintain their population on exclusively renewable resources, there were less than 1 billion people. Be aware that we have never been able to raise subsistence production as quickly as we have sought to increase our population. We have always had an average of too many infants, as seen by the starvation-related child mortality that affects some populations.
Thank you,
Eddie
How does a focus differ from an epicenter?
(((50 POINTS)))
Analyze the image below of the various carbohydrate classifications. Compare and contrast each classification of carbohydrates and their structural characteristics.
longer chain that shows more carbon is used so its not a alcohol only up to methanlo or up to 3 carbon is considered as alcohol
amplitude
frequency
trough
wavelength
Answer:
get foundational structure off amplitude
The process of diffusion does not require any energy. Why?
A. The particles are always moving AWAY from equilibrium.
B. The particles move TOWARDS equilibrium.
C. We don't know why diffusion doesn't require energy.
The process of diffusion does not require any energy because the particles move towards equilibrium (option B).
What is diffusion?Diffusion is the movement of fluids (gases) from a region of high concentration toward regions of lower concentration.
Diffusion is termed a passive transport because it does not require energy to occur.
Diffusion as a transport mechanism does not require energy in form of ATP because it moves molecules towards/down a concentration gradient.
Therefore, the process of diffusion does not require any energy because the particles move towards equilibrium.
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What discoveries early-on helped man establish himself on Earth?
hammer
knife
fire
pottery (cooking)
rope (fishing)
Inherited diseases are caused by:
A. Mutations in genetic material
OB. Mutations in somatic cells
C. Pathogens
OD. Parasites
Answer:
A. Mutations in genetic material
Explanation:
Genetic disorders are typically inherited (passed down) in either a dominant or recessive manner.
Genetic disorders can be caused by a mutation in one gene (or more), by a combination of gene mutations and environmental factors or by damage to chromosomes.
What adaptation helps the
Orchid succeed in the
rainforest?
A. It grows long tap roots to reach
water sources.
B. It is one of the tallest trees in
the rainforest so it can reach the
sunlight.
C. It traps insects to gain extra
nutrients.
D. Instead of using energy
growing a trunk, it climbs other
plants to reach sunlight.
The adaptation which helps the
Orchid succeed in the rainforest is that It grows long tap roots to reach water sources.
What is adaptation?Adaptation can simply be defined as the ability of an organism to live adapt and live successfully in an environment
Other characteristics of living things are
MovementRespirationNutritionIrritabilityGrowthExcretionReproductionDeathCompetitionSo therefore, the adaptation which helps the Orchid succeed in the rainforest is that It grows long tap roots to reach
water sources.
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a sharp knife cuts more easily than the blunt ones. Give reason.
Answer:
A sharp knife can cut objects more easily compared to a blunt knife because a sharp knife applies more pressure on the object.
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.
Answer:A
Explanation:
Explain the structure and function of tissue systems in plants.
Answer:
Key Takeaways: Plant Tissue Systems
Epidermis is a thin cell layer that covers and protects underlying cells. The outer periderm, or bark, is a thick layer of nonliving cork cells. Vascular tissue is composed of xylem and phloem. These tube-like structures transport water and nutrients throughout the plant.
Answer:
function of tissue system:
Dermal tissue covers and protects the plant, and vascular tissue transports water, minerals, and sugars to different parts of the plant. Ground tissue serves as a site for photosynthesis, provides a supporting matrix for the vascular tissue, and helps to store water and sugars.
Explanation:
structure of tissue system:
Vascular tissue transports water, minerals, and sugars to different parts of the plant. Vascular tissue is made of two specialized conducting tissues: xylem and phloem. Xylem tissue transports water and nutrients from the roots to different parts of the plant, and also plays a role in structural support in the stem.
what are the basis of classifying organism under natural and artificial system of classification
Explanation:
The natural system of classification is a biological classification based upon morphological and anatomical relationships and affinities. Artificial systems of classification were based on morphological characters such as habit, habitat, colour, number and shape of leaves.
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Need help please with this
TSH controls hormone synthesis, ADH decreases urine, melatonin is involved in circadian rhythm, TH regulates metabolism, insulin is produced in the pancreas and Aldosterone regulates salt.
What is a hormone?A hormone is a chemical messenger used by the body to play a specific function and thus maintain homeostatic balance.
Hormones are secreted by specialized cells such as insulin that is secreted by pancreatic islet cells in this organ (i.e., the pancreas).
In conclusion, the function of TSH is to control hormone synthesis in the thyroid, ADH decreases the amount of urine, melatonin is involved in circadian rhythm, TH is a thyroid hormone that regulates metabolism, insulin is produced in the pancreas and Aldosterone regulates salt amount.
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13. Which of the following drugs is not a hallucinogen?
A. Mescaline
B. PCP
C. Heroin
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After recent renovations to an office building, employees in the building begin complaining of nausea and burning in their eyes and throat. What type of exposure is most likely causing these reactions?
Lead
Asbestos
Pesticides
Formaldehyde
The correct answer is Formaldehyde.
Formaldehyde
Building materials such as particleboard, plywood, and other pressed-wood products contain formaldehyde, a colorless, pungent-smelling, combustible chemical that is generated industrially. It is additionally frequently utilized in morgues and medical labs as a preservative, fungicide, germicide, disinfectant, and preservative. Environmental sources of formaldehyde are also common. It is created during the natural chemical reactions that occur in most living things as well as during the decomposition of plant matter in soil. It can also be detected in tobacco smoke as a byproduct of combustion. Inhaling formaldehyde gas or vapor from the air or absorbing formaldehyde-containing substances via the skin are the two main ways that people are exposed.
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After recent renovations to an office building, employees in the building begin complaining of nausea and burning in their eyes and throat. What type of exposure is most likely causing these reactions?
Lead
Asbestos
Pesticides
Formaldehyde
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why are there multiple controlled variables but only one independent variable
Identify the suggested set of activities for the given
corresponding principle(s).
1. Programs and teachers engage families in ways that
are truly reciprocal.
2. Programs invite families to participate in program-
level decisions and advocacy efforts.
3. Programs invite families to participate in decision-
making and goal-setting for their children.
4. Programs provide learning activities for the home and
in the community.
5. Programs implement a comprehensive, program-level system of family engagement.
6.Teachers and programs engage families in two-way communication.
The suggested set of activities for the corresponding principles regarding the Programs and teachers is explained below.
How to explain the information?1. Programs and teachers engage families in ways that are truly reciprocal.
Programs and families can benefit from shared resources and information. Teachers seek information about children’s lives, families, and communities.2. Programs invite families to participate in program-level decisions and advocacy efforts.
Programs invite families to actively participate in making decisions about the program itself. Programs also invite families to advocate for early childhood education in the wider community.3. Programs invite families to participate in decision-making and goal-setting for their children.
Programs invite families to actively take part in making decisions concerning their children’s education. Teachers and families jointly set goals for children’s education and learning both at home and at school.4. Programs provide learning activities for the home and in the community.
Programs use learning activities at home and in the community to improve each child’s early learning.5. Programs implement a comprehensive, program-level system of family engagement.
Programs institutionalize family engagement policies and practices and ensure that teachers, and other staff receive the supports they need to fully engage families6. Teachers and programs engage families in two-way communication
Strategies allow for both school- and family-initiated communication that is timely and continuous. Conversations focus on a child’s educational experience as well as the larger program.Learn more about teachers on:
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Answer:
1. Family Showcase, Family/Teacher Conference, Family Focus Groups
2. Family Council Advocacy Events
3. Beginning-of-the-Year Family Night, Family/Teacher Conferences, Surveys and Questionnaires
4. Weekly Newsletters, Take-Home Backpacks, Make-and-Take Nights
5. Plans including, short-term and long-term goals
6. Daily Sheets, Journal, Technology/Apps, Telephone Conferences
Explanation: Penn Foster
In the water cycle shown below, which process is happening at step 3? precipitation
melting
evaporation
sublimation
Answer:
melting
Explanation:
because the water has got its freezing ponit
Answer: A: precipitation
Explanation: it is raining took the test this is the right answer
When is a mutation considered beneficial?
A. when it decreases an organisms life span
B. when it decreases an organism's fertility rates.
C. when it gives an organism an evolutionary advantage
D. when it makes an organism more vulnerable to predators
Answer:
C!
Explanation:
Of course you would want to evolve against your predators! Many examples of this include camouflage, gills, or mimicry. Hope this helps!
A mass of cells that have lost all restraint in division and are piled on top of one another is called a _____
Answer:
A mass of cells that have lost all restraint in division and are piled on top of one another is called a Tumor.
The portion of the trna molecule that binds to the codon on the mrna is called the _________.
a) c-codon
b) anticodon
c) complementary codon
d) paracodon
Why does there need to be a concentration gradient across respiration surfaces?
A. So that oxygen can diffuse in, and carbon dioxide can diffuse out.
B. So that oxygen can diffuse out, and carbon dioxide can diffuse in.
C. So that there is no surface tension in the alveoli of the lungs.
D. So that there is surface tension in the alveoli of the lungs.
A concentration gradient across respiration surfaces is needed so that oxygen can diffuse in, and carbon dioxide can diffuse out; option A.
What is a concentration gradient?A concentration gradient is a difference in the concentration of molecule of substances across two regions or across a barrier.
A concentration gradient is necessary for diffusion of molecules of substances from one region to another.
Across respiratory surfaces, a concentration gradient is required in order for the gases to diffusion across the membranes from regions of high concentration to regions of lower concentration.
In conclusion, a concentration gradient is required for effective gaseous exchange across respiratory surfaces.
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When mites or fleas live in a dog's fur, what type of relationship is it?
A. Predatory
B. Parasitic
C. Mutualistic
D. Monogamous
When mites or fleas live in a dog's fur, it represents a type of relationship known as a Parasitic relationship. Thus, the correct option is B.
What is the Species relationship?The species relationship may be defined as a process through which the population of one species interacts with the population of another species that lives in the same locality for the purpose of food, space, and shelter.
A parasitic relationship is when one group of organisms known as parasites live on another group of organisms known as hosts and negatively harm it as well as possibly induce death.
The same principle is applied to the mites or fleas that live on dogs' fur. These species gradually cause disease in dogs using hosts machinery and provoking death.
Therefore, when mites or fleas live in a dog's fur, it represents a type of relationship known as a Parasitic relationship. Thus, the correct option is B.
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High heels of girls hurts more than elephant`s leg when steeped in someone. Give reason.
Answer:
because they wear high heels.
Explanation:
(I’m a girl) I’m wanting to go on runs in the morning. However, I am both self conscious and afraid of getting kidnapped or other bad things happening to me.
How do I get over these feelings?
Answer:
(I am also a girl) Just keep some pepper spray on you. If you have a phone you can have it on you just either keep it out of sight or in a safe place within reach so if you need to you can call for an emergency. I bet you are beautiful, but if you are self-conscious I don't really know what to tell you other than try ignoring stares or what other people say it doesn't matter what other people think about you it only matters what you think of yourself. Also if someone ends up grabbing you kick and scream as loud as you can. Try hurting them to get out of their grasp. When you get out of their grasp, DO NOT run home, run to the nearest police station or to a stranger's house and tell them you need help.
Explanation:
I hope this helps you get over those feelings :) wish you the best.
Answer: On amazon they sell safety supplies ( pepper spray, mini knife, window breaker, etc) make sure somebody is with you so they can protect you to better to be in a group of two or more then alone
Explanation:
The tyres of tractor are wide and large .Give reason.
Maybe this is the answer
Which of the following correctly describes Metaphase?
A. Chromosomes split and move to opposite sides of the cell. the cell elongates
B. Mitotic spindle attaches to the chromosome's centromeres and lines them up in the middle of the cell
C. The Cytoplasm splits, forming two daughter cells
D. Centrioles move to opposite sides of the cell, nuclear envelop dissolves, chromosomes form
Reset Selection
A
Novt
During the metaphase, chromosomes are taken to the equatorial plane, were they randomly line up. Option B. Mitotic spindle attaches to the chromosome's centromeres and lines them up in the middle of the cell.
What is the metaphase?
Metaphase is one of the cell division stages that follows the prophase and precedes the anaphase.
During this phase, chromosomes are taken toward the center of the cell by the spindle apparatus. Once in the equatorial plane, chromosomes randomly line up.
Once aligned, each chromatid joins with a microtubule of opposites poles and gets ready to go through the anaphase. Sister chromatids are held together until they reach the Anaphase.
Since chromosomes in this stage are well defined and can be observed in detail under the microscope, they are used to create karyotypes and identify chromosomal abnormalities.
These chromosomes have the typical X shape.
Among the options, the one that correctly describes the metaphase is Option is B. Mitotic spindle attaches to the chromosome's centromeres and lines them up in the middle of the cell.
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Question 4 (1 point)
Respiratory acidosis and respiratory alkalosis are
similar because they both
O a) the lungs can compensate for both of
these conditions.
Ob) increase the concentration of hydrogen
ions in the body.
O c) can be caused by changes in carbon
dioxide concentrations in the body.
Answer:
c) acidosis a higher carbon dioxide level
with alkalosis lower carbon dioxide
All three regions of the brain stem can be observed on the ventral surface of the brain. True or false?.
Answer:
True
Explanation: