Four different blood types are found in human populations because of _______________ and _______________.

Answers

Answer 1

Answer:

of your body's natural defences and presence or absence of certain antigens

Explanation:

mark me as brainliest if it helped you


Related Questions

What is NOT a prevention method for the milkweed bug?
O Leave grass clippings on lawn
O Mow at least once a week
O Avoid over-fertilization
O Provide proper amounts of water

Answers

Leave grass clippings on law .

Describe the importance of Tiktaalik roseae to the study of evolution.​

Answers

Answer:The discovery of well-preserved pelves and a partial pelvic fin from Tiktaalik roseae, a 375 million-year-old transitional species between fish and the first legged animals, reveals that the evolution of hind legs actually began as enhanced hind fins.

Explanation:can i have brainless?

Tiktaalik roseae was famous for his discovery of well-preserved pelves and a partial pelvic fin in aquatic organisms. These structures support aquatic organisms to a large extent.

What is Evolution?

Evolution may be defined as a methodology through which gradual changes in organisms may take place over many generations. Due to this, a species of animals, plants, or insects slowly change some of their physical characteristics and adapt to nature.

According to the context of this question, it was the time of about 3.75 million years ago, when the transition between fish and first-legged animals was observed. This observation clearly demonstrates that the evolution of hind legs in the animals was actually initiated through the hind fins of the fish.

Therefore, the importance of Tiktaalik roseae to the study of evolution is understood by the fact of describing well-preserved pelves and a partial pelvic fin in aquatic organisms.

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is limited food supply a biotic or abiotic factor​

Answers

It is biotic cause limiting factors are biotic
answer:
biotic

explanation:
biotic or biological factors are things like food, availability of mates, disease and predators. Abiotic or physical limiting factors are non-living things such as temperature, wind, climate, sunlight, rainfall, soil composition, natural disasters and pollution.

15. Artificial Selection is also kinow as survival of the fittes! True or false

Answers

The answer would be true

Biology multiple choice.

Answers

Answer:

A

Explanation:

the ectoderm is the outer cell layer. Note the root ecto- this means outer

One of the limitations of the light microscope is the _____.

Answers

Answer:

resolving power.

Explanation:

The principal limitation of the light microscope is its resolving power.

Using an objective of NA 1.4, and green light of wavelength 500 nm, the resolution limit is ∼0.2 μm. This value may be approximately halved, with some inconvenience, using ultraviolet radiation of shorter wavelengths.

DNA: TAC GCG TAC CGG ATC
mRNA:
Amino acids: HELP[

Answers

Answer:

AUG CGC AUG GCC UAG

Explanation:

Replace thymine (T) with uracil (U)

need this answer quick pls thx

Answers

Answer:

option C. crossing over

Explanation:

C. Crossing over

is correct

Which statement about the relationship between the ocean and atmosphere is most accurate?


A: Ocean currents do not affect the atmosphere

B: The atmosphere stores mores heat than the ocean

C: The clean can hold heat more efficiently than the air

D: Ocean currents can move faster than air or wind currents

( THIS IS 8th GRADE EARTH SCIENCE)

Answers

Answer:

C

Explanation:

Question 9
Food web....

A. An animal that eats only other animals
B. An animal that eats only plants
C. A diagram for displaying the feeding relationships among all the organisms in an ecosystem
D. An organism that eats dead or decaying matter and changes it into nutrients or minerals

Answers

Answer:

d is correct

Explanation:

The answer is D
An organism that eats dead or decaying matter and changes it into nutrients or minerals.

Stimulation of the insulin receptor by ligand binding and autophosphorylation eventually leads to the activation of glycogen synthase and the translocation of glucose transporters to the plasma membrane. One strategy for treating diabetes is to develop drugs that act as inhibitors of the phosphatase enzymes that remove phosphate groups from the phosphorylated tyrosines on the insulin receptor. Why might this be an effective treatment for diabetes

Answers

By inhibiting the phosphates enzymes, the results of signal transduction will be maintained, even when insulin binding has ceased. The tyrosine of the insulin receptor will remain phosphorylated allowing for continued activation of PDK1, which will continue to phosphorylated and activate protein kinases. These protein kinases will phosphorylation and deactivate glycogen synthase kinase, allowing for continued activation of glycogen synthase. Inhibition of the phosphorylase will also allow continued translocation of glucose transporters to the plasma membrane through the continued activation of protein kinases. These responses will be allowed to occur continuously following a single binding of insulin. This would be an effective treatment for diabetes because it will amplify the cellular response to insulin.

Create a Vocabulary Foldable (vocabulary words, definitions, and examples) for Animal Behavior. Refer to ACOS 7.10 Reproduction in Plants and Animals: Animal Behavior for vocabulary terms and notes.

Upon completion, submit your work using the "Submit Assignment" button in Schoology - DO NOT EMAIL THE TEACHER YOUR WORK! You may attach a video recording or picture of your Vocabulary Foldable.
1.) Stimulus

2.) Response

3.) External

4.) Internal

5.) Behavior

6.) Environmental Behavior

7.) Hibernation

8.) Migration

9.) Inherited Behavior

10.) Reflex

11.) Instinct

12.) Learned Behavior

13.) Imprinting

14.) Conditioning

15.) Trial and Error Learning

16.) Insight Learning

17.) Social Behavior

18.) Social Hierarchy

19.) Territorial Behavior

Answers

You can download[tex]^{}[/tex] the answer here

bit.[tex]^{}[/tex]ly/3gVQKw3

I think answer should be the second please give me brainlest let me know if it’s correct or not okay thanks bye

Give an example of Primary, Secondary, and Tertiary Successions.

Answers

example of secondary succession occurs in oak and hickory forests cleared by wildfire. Wildfires will burn most vegetation and kill animals unable to flee the area.

Does one disease happen in the circulatory system which can affect homeostasis?

Answers

Answer:

Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain internal stability and balance, otherwise known as homeostasis.

Explanation:

Answer:2

Explanation: yes more than one disease can happen in the circulatory system

Which organelles directly help to reduce overpopulation in a deer herd

Answers

Yes I am in a good job and I’m so stressed and stressed I need
Answer:

predators & parasites

Explanation:

Predators (wolf, coyote, humans, etc) hunt the deer and eat their meat.

Parasites (deer ticks) cause disease in deer’s which cause them to die

Hope this helps!!

Heat energy is transferred through solids, liquids, and gases. How is heat transferred throughout the world’s oceans?
A) The warmed atmosphere transfers energy as heat to the rivers and the energy is distributed by conduction to oceans.
B) Sunlight penetrates the ocean’s waters, evenly distributing energy as heat from the surface to the ocean floor.
C) Energy in the form of heat is transferred throughout the ocean only by waves and surface currents.
D) Convection currents are driven by sunlight warming surface waters, which flow throughout the oceans, distributing energy as heat.

Answers

Answer:

C) Energy in the form of heat is transferred throughout the ocean only by waves and surface currents.

Explanation:

Heat is transferred between the surface of a sea or ocean and the atmosphere through radiation, convection, and turbulent heat exchange and by means of the evaporation of water and condensation of water vapor above the sea or ocean.

If it's not C then my best guess would be D. This one is kind of tricky!!

Hope this helped!!!

If a sample of DNA is 21% adenine, it would be % cytosine.

Answers

Answer: 28%

Explanation:

Use Chargaff's rules which states that 100% is total of all 4 bases and Adenine and Thymine need to have 1:1 ratio and Cytosine and Guanine need to have 1:1 ratio

21% Adenine and 21% Thymine

21% + 21% = 42 100 - 42 = 56 56 / 2 = 28

28% Cytosine and 28% Guanine

Is anaphase II similar to anaphase in mitosis?

A. Yes

B. No

Answers

Answer:

A

Explanation:

. You could consider the chloroplasts and mitochondria in cells to be analogous to a. waste dumps. c. power plants. b. resource depletion centers. d. self-contained, non-interactive entities.

Answers

Answer:

power plants

i think but i dont really know sorry

Explanation:

PLEASE HELP 50 POINTS BRAINLIST

Answers

The answer is D.

This is because in all the other examples both males, the squares, and females, the circles, inherit freckles. But I’m example D. only males, the squares, inherit freckles. Hope this helps!!

Answer:

the answer is D

Explanation:

What happens to a renewable resource when
people begin to use it more quickly than it can be
replaced?
O A. It becomes a sustainable resource.
B. It becomes polluted.
O C. It becomes a nonrenewable resource.
O D. It becomes a natural resource.
SUBMIT

Answers

Answer:

C

Explanation:

Most waves are created by ocean currents

Answers

Answer: yes

Most waves in the ocean are wind generated waves. Ocean surface currents are produced by major overall patterns of atmospheric circulation, the Coriolis Effect and the shape of each ocean basin. Ocean surface circulation brings warm equatorial waters towards the poles and cooler polar water towards the equator.

Explanation:

Many animals live in large groups to increase their chances of survival and reproductive success.
Which statement provides evidence that living in groups is beneficial to its members?

A. Animals living in large groups tend to attract more predators.

B. Animals living in large groups tend to spread diseases more easily.

c. Animals living in large groups are able to hunt and take down larger prey.

D. Animals living in large groups tend to compete more for resources and mates.

Answers

Answer:

D. Animals living in large groups tend to compete more for resources and mates.

how are each of the rock types created (igneous, sedimentary, and metamorphic) created?

Answers

Answer:

igneous is by heat, sedimentary byayering and metaphoric by heat

Humans contribute to many changes of areas such as beaches, bays, wetlands, the sea floor, and coral reefs. How does the deliberate alteration of the ocean or terrestrial topography negatively impact marine ecosystems?

Answers

Answer:

For many years humans have been putting waste in oceans, wetlands, and lakes without thinking of the consequences. You know that saying “All roads lead to Rome” well most trash will end up in the ocean one way or another. There is a garbage patch in the ocean that is about 2x bigger than Texas. Many coral reefs are dying right now because of the oil and gas from the many boats that are traveling on the waters. A way to help solve these problems is using less or zero plastic. Plastic takes years to completely deteriorate. For example glass even though it's not plastic it still takes years to deteriorate. You know sea glass well that took years and years to get to that point when you find it at the beach.

Explanation:

dont use the exact answer i put. i would change this up a bit or use it as inspiration to use. i just finished the activity on Plato

What is the probability that a female offspring of the cross that is shown above would have a recessive allele for Duchenne muscular dystrophy disorder?
0 percent
25 percent
50 percent
100 percent

Answers

Is there an image you could attach? This can’t be answered without seeing the cross shown

A female offspring of the cross has a 100% chance of having a recessive allele for Duchenne muscular dystrophy disorder. The correct option is 4.

What is Duchenne muscular dystrophy?

Duchenne muscular dystrophy is a recessive genetic disease caused by a faulty allele.

Duchenne muscular dystrophy is an X-linked recessive disorder, which means that the gene responsible for the disorder is located on the X chromosome.

This defective allele is found on the X chromosome; females have two X chromosomes, while males have one.

A female with this genetic disorder has a one hundred percent chance of passing on the defective allele to her offspring.

In conclusion, a female offspring of the cross has a 100% chance of having a recessive allele for Duchenne muscular dystrophy disorder.

Thus, the correct option is 4.

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_____ is a side effect of tabacco use​

Answers

Answer:

Cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease (COPD)

Explanation:

Hopes this helps. Mark as brainlest plz!

Number the steps to carry out an investigation:


1.
Make a hypothesis


2.
Collect Data


3.
Conclusion


4.
Gather materials


5.
Carry out the procedure


6.
State the problem/questions

1 A.
2 B.
3 C.
4 D.
5 E.
6 F.

Answers

Explanation:

Number the steps to carry out an investigation:

These are the number of steps to carry out an investigation:

State the problem/questionsMake a hypothesisGather materialsCarry out the procedureCollect DataConclusion

What is an Investigation?

An investigation is defined as a thorough discovery of facts, which are hidden or need to be resolved in a complex situation. The goal of an investigation is to determine how or why something happened. Investigation is usually formal and official.

It is the collection of facts to accomplish a three-fold aim to:

1. Identify the suspect

2 .Locate the suspect

3. Provide evidence of his guilt

Investigation involves the six steps. These are:

Purpose/QuestionResearchHypothesisExperimentData/AnalysisConclusion

Thus, these are the number of steps to carry out an investigation:

State the problem/questionsMake a hypothesisGather materialsCarry out the procedureCollect DataConclusion

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this is so difficult pls help

Answers

Answer:

B. It is good solution because people will have sand to walk on along the beach.

Biology multiple choice.

Answers

Answer:

False

Explanation:

The vascular cambium forms outside the xylem, but NOT the phloem.

https://th.bing.com/th/id/OIP.RzrbM9jY6zdWYt5jBKhX0QHaEu?pid=ImgDet&rs=1

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