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soldier1979 [14.2K]
2 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]2 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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Coal is best used as a<br> Fuel<br> Paint<br> Fertilizer <br> Conductor
11111nata11111 [884]

Answer:

A. Fuel.

Explanation:

Coal is extensively used as a fuel in many countries for the production of electricity. When coal is heated, the heat energy is used to convert the liquid water into steam which is used to move turbines in the electric power plant. When these turbines moves, the electricity is produced. This fossil fuel is also used for warming of rooms and cooking delicious foods.

3 0
3 years ago
A novel multicellular organism has been discovered whose natural habitat is a barren desert with limited water and nutrients. Th
STatiana [176]

Answer:

The correct answer will be- sexual reproduction

Explanation:

An organism can reproduce by either of two ways of reproduction called asexual reproduction and sexual reproduction.

Both modes of reproduction prove beneficial to the organism but based on the environmental condition, the organism use either sexual mode or asexual mode or both.

In the given condition, since the organism has to adapt and evolve in response to the desert conditions which requires changes in the DNA sequences which can take place only during the mechanism of sexual reproduction like crossing over or genetic recombination, therefore, sexual reproduction is the correct answer.

6 0
3 years ago
The cell walls of a plant consist mostly of cellulose, a carbohydrate, which provides a strong structure. The cell membrane gets
disa [49]
The answer would most likely be sodium because carbon is a plants food, phosphorus is a nutrient in soil, hydrogen is air, but sodium does not have a place in a plant:)
7 0
3 years ago
Read 2 more answers
Which creature cannot survive in the presence of oxygen? Give Examples. What does the creature need to survive instead of oxygen
yan [13]

Answer:

Instead of oxygen a creature would also need nutrients. Simple everyday things like water and food.

Explanation:

Although it is kind of impossible to live without oxygen. There are organisms on the earth who do not need it and can survive. They metabolize hydrogen or methane or a number of other compounds.

3 0
3 years ago
Earth is heated by global warming. How is the water cycle affected by global warming?
ArbitrLikvidat [17]
Put simply, water evaporates from the land and sea, which eventually returns to Earth as rain and snow. Climate change intensifies this cycle because as air temperatures increase, more water evaporates into the air. Warmer air can hold more water vapor, which can lead to more intense rainstorms, causing major problems like extreme flooding in coastal communities around the world.

https://www.climaterealityproject.org/blog/climate-change-impacting-water-cycle
4 0
3 years ago
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