what would happen to the human population if over a long period of time each couple in a population had only two offspring

Answers

Answer 1

Answer: The population rate would decrease, the population would still increase but in a slower phase. If the death rate is more than the birth rate then the human population will start to go down.

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Which of the following is a drawback to superconductors?-hey perform well only at very low temperatures. -They are made from extremely expensive materials. -They have very few uses. -They are dangerous to use.

In what order does blood flow through the body and heart? A. Right atrium, left atrium, lungs, right ventricle, left ventricle, body. B. Right atrium, left ventricle, lungs, left atrium, right ventricle, body. C. Right atrium, right ventricle, lungs, left ventricle, left atrium, body. D. Right atrium, right ventricle, lungs, left atrium, left ventricle, body.

Answers

The statement that describes the order blood flows through the body and the heart is:

Right atrium, right ventricle, lungs, left atrium, left ventricle, body.

What is blood?

It is a red liquid with different shades that varies according to the amount of oxygen it has inside, that is, hemoglobin.

Characteristics of blood circulation

It is a necessary substance for oxygenation to occur between cells, as well as to regulate blood pressure.

Each side of the heart is divided into an upper chamber called the atrium and a larger, lower chamber called the ventricle.

The blood flows since it has left the right ventricle, has been oxygenated by the lungs and has returned to the left atrium through the pulmonary veins, it is carried to the left ventricle.

Therefore, we can conclude that the main function of the blood is to ensure that oxygen and nutrients are distributed between the cells of each organism.

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Answer:

answer is D

Explanation:

Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body's tissues through the aorta.

What determines the identity of an Atom?the number of protons inside the nucleus of the atom
the number of protons inside the nucleus of the atom

the number of electrons outside the nucleus of the atom
the number of electrons outside the nucleus of the atom

the number of neutrons inside the nucleus of the atom
the number of neutrons inside the nucleus of the atom

none of the above

Answers

Answer: the number of protons

Explanation:

Help with these please???

Answers

19. B - mitochondria
20. D - vegetative structure
21. C - inducing a mutation
22. A - phosphates
23. C - fungi
24. A - provides support
25. C - sponges
26. B - opposite charges
27. D - asexual reproduction
28. not sure about this one sorry
29. D - all of the above
30. A - prevents ions and large molecules from passing through the membrane

Why is it important to study cells

Answers

Because cells are in ever living thing

Final answer:

Studying cells is important because it helps us understand the fundamental units of life, address diseases healthconditions, contribute to our understanding of evolution and ecology.

Explanation:

Studying cells is important because it helps us understand the fundamental units of life and the processes that occur within living organisms. Studying cells also allows us to understand and address various diseases and health conditions. Furthermore, studying cells contributes to our understanding of evolution and the ecological connections between organisms.

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Gregor Mendel’s research formed the basis of the field of genetics. dominance. recessiveness. selective breeding.

Answers

The appropriate response is field of genetics. Genetics is the investigation of qualities, hereditary variety, and heredity in living creatures. It is by and large considered a field of science, however, meets every now and again with numerous other life sciences and is firmly connected with the investigation of data frameworks.

Answer:

field of genetics.

Explanation:

just took the test on edge 2020 , good luck ! <3

What two important domains within a riboswitch involve the ligand-binding site?\ What two important domains within a riboswitch involve the ligand-binding site? A site and B site conformation and anticonformation aptamer and expression platform B site and C site alpha and beta

Answers

The correct answer for the question that is being presented above is this one: "conformation and anticonformation." The two important domains within a riboswitch that involve the ligand-binding site are conformation and anticonformation. Riboswitch refers to the regulatory segment of a messenger RNA molecule that binds a small molecule.

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Cells can regulate what they need or don't need to maintain their own health.

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Where is the Heart located in human body?

Arteries gradually constrict between each heartbeat. This would allow for which of the following? A. Blood pressure would drop during a heartbeat. B. Blood pressure would increase between heartbeats. C. Blood flow would be temporarily blocked between heartbeats. D. Blood volume would increase between heartbeats.