BIOLOGY HIGH SCHOOL

Which best shows how louis pasteur's discovery of gems improved health in general?

Answers

Answer 1
Answer: People learned that cleanliness was needed for good health❤

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Describe a reason that ecosystem stability is important to the life forms in the ecosystem, and then describe why stability in one ecosystem is important for stability in an adjoining one

Answers

Different life forms adapt to their environment. Stable ecosystem creates a stable environment for life forms. In stable environment, life forms do not have to adapt all the time and their energy can be invested into other life processes, such as growth, reproduction, etc. Stability of ecosystem is important for adjoining ecosystems because that way boundaries and influences could be extended. Stable ecosystems are able to interact and both benefit from each other.

Answer:

A. In a stable ecosystem, life forms have enough food for energy and they are not wasting that energy trying to adapt t their environment. This gives them added opportunities to grow and reproduce. A stable ecosystem can extend its boundaries and interact with an adjoining ecosystem which could benefit both ecosystems.

Explanation:

8. which of the following statements is true? A. Glacial erosion forms wide, U-shaped valleys B. Mudflows are the least dangerous type of sediment flow C. mass wasting happens when sediment is carried from a low elevation to a higher one D. in saltation, acids and salt in ocean water dissolve rock minerals

Answers

The correct answer is - A. Glacial erosion forms wide, U-shaped valleys.

The glaciers are essentially large masses of ice, formed either by large mas of snow or a frozen river. Because the ice is expanding, but also the glaciers appear at higher places and slowly move towards lower parts, they contribute to a lot of erosion. The size and their weight, plus their movement and the pressure they make, the glaciers manage to erode lot of material, and by doing so, they reshape the landscape in accordance to their form, which is an elongated, river like, U-shape. Once they are melted, the glaciers leave behind them long and narrow U-shaped valleys, some of which remain as a valleys, while others are filled with sea water and formed the fjords.

Answer:

the answer is A

Explanation:

Which gas is a source of natural groundwater pollution ? A. Hydrogen B. Radon C. Carbon D. Oxygen

Answers

The answer is letter C. Radon

One of the natural pollutants in ground water system is radon gas. Radon gasses are from the Uranium decay from the Earth’s crust and possibly enter the groundwater system. There is a big possibility that the water that enters our home from the groundwater system can be polluted.

Radon is a source of natural groundwater pollution (option B)

What is radon?

Radon is a naturally occurring radioactive gas that is colorless, odorless, and tasteless. It is formed from the decay of uranium, which is found in all rocks and soils. Radon can seep into homes and buildings through cracks and other openings in the foundation. It can also be found in groundwater.

Radon is a health hazard because it can cause lung cancer. When you breathe in radon, the radioactive particles can get trapped in your lungs. Over time, these particles can damage DNA and lead to cancer.

Learn about radon here brainly.com/question/31577197

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Select all the statements that correctly describe the difference between DNA and RNA. A) RNA nucleotides contains uracil instead of thymine as in DNA
B) DNA consists of two strands of nucleotides while RNA has one
C) RNA consists of phosphate group while DNA has nitrogenous group
D) DNA nucleotide comprises deoxyribose sugar while RNA consists of ribose sugar
E) DNA nucleotides contain and adenine-uracil base pairing
F) RNA is more complex than DNA because it has more types

Answers

Answer:

A,B,D,

Explanation:

C,E and F are wrong

Answer:

DNA has thymine as a nucleotide, while RNA has uracil.

Explanation:

The DNA nucleotides are adenine, guanine, cytosine, and thymine; the RNA nucleotides are adenine, guanine, cytosine, and uracil.

Water has the ability to dissolve salts and carry dissolved carbon dioxide. How does this action help the human body maintain homeostasis?A: the body will be able to absorb materials it needs form the environment
B: Both are involved in providing energy to the cells.
C: Waste can be removed from the cells of the body.
D: These materials can be cycled through the body.

Answers

Answer:

answer C.

Explanation:

waste can be removed from the cells of the body.

A malaria outbreak causing allele frequencies to change is an example of

Answers

This would be an example of a mutation, because the changing of allele frequencies would be a change within the gene itself, which would be a mutation in the DNA. This is evidenced by the fact that there is now a form of human resistance to malaria, due to changes within human DNA itself.
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