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soldier1979 [14.2K]
3 years ago
11

There is much controversy surrounding stem cells and the use of them. Do you think the use of stem cells is ethical? Why or why

not?
Biology
1 answer:
Dafna11 [192]3 years ago
4 0

Answer:

Explanation:

Ethical issues Historically, the use of stem cells in medical research has been controversial. This is because when the therapeutic use of stem cells first came to the public’s attention in the late 1990s, scientists were deriving human stem cells from embryos.

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Describe how a supernova and neutron star are related?
MakcuM [25]

Answer:

Neutron stars are one of the possible ends for a star. They result from massive stars which have mass greater than 4 to 8 times that of our Sun. After these stars have finished burning their nuclear fuel, they undergo a supernova explosion. ... It collapses so much that protons and electrons combine to form neutrons.

4 0
3 years ago
Explain why glucose consumption must increase in hypoxic tissues to provide the same amount of ATP that could be produced from g
slega [8]

Answer: B. In hypoxic tissues, in contrast to normoxic tissues, ATP is additionally consumed to transform lactate to pyruvate

Explanation:

In hypoxic tissues such as new cancerous cells, the vascular system is still underdeveloped, thus oxygen supply is reduced. To meet energy need, additional glucose is needed to convert lactate (result of anaerobic glycolysis) to pyruvate which can then go into the TCA cycle to yield energy. This phenomenon is very common in muscle tissues during exercise.

3 0
3 years ago
How will the movement of water affect a survey if it is transferred from a hypotonic solution to a hypertonic solution?
Inga [223]

Answer:

The cell will shrink

Explanation:

In an hypotonic solution, water moves into the cell through the process of osmosis. This shall be due to the high concentration of water in the hypotonic solution than that in the cytoplasm.

Due to this movement, the cell bulges out.

If the cell is transferred to a hypertonic solution, water shall move out of the cell thereby making the cell shrink. This is because water concentration in the cytoplasm shall be higher than that in the hypertonic solution.

Effect to the survey shall be an experience of the exact opposite of the previous immersion.

3 0
3 years ago
A scientist who studies the variety of animals in the environment
Alenkinab [10]

Answer:

Zoologist

Explanation:

A person who specializes in the study of animals is called a zoologist. Zoologists who study certain kinds of animals have their own names.A botanist is a scientist who studies or experiments with plants. These plants may include a range of organisms, including flowers, trees and algae. Botanists are a type of biologist. Botanists study all forms of plant life.

6 0
3 years ago
NO LINKS PLEASE
ella [17]

Answer:

blood flows through pores in the tissues

8 0
3 years ago
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