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Ulleksa [173]
3 years ago
15

Overtime, why does natural selection continue to work?

Biology
1 answer:
dedylja [7]3 years ago
7 0

Environments are always changing so organisms need to adapt to survive. The organisms that survive are the ones that are fit to live in that environment, which is where survival of the fittest comes into play.

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Another word for chemical weathering is
Neporo4naja [7]

Answer:

1. Another word for chemical weathering is b. disintegration

Chemical weathering is a process by which the rocks are broken down into parts and sediments by the action of a chemical agent such as alkali or acid. The disintegration can be a natural process by which a solid body is broken down into parts or subparts.

2. d. moving water is not an agent of chemical weathering agent.

The chemical weathering can be caused by the agents like lichens which secretes acid on the rock surface and causes it's disintegration, acid rain and salt water are chemical agents that can cause the disintegration of the rock but moving water will have little influence on the hard rock surface.

3. c. chemical weathering is a process which turns rocks and minerals into new substances. The chemical weathering process brings change in the chemical composition of the rocks due to the action of the weathering agents  hence, on disintegration of rocks new substances are formed.

4 0
3 years ago
Give three examples of the color changes that can be seen with pH indicators.
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Answer:

IndicatorLow pH colorHigh pH colorBromocresol greenyellowblueMethyl redredyellowMethyl purplepurplegreenAzolitmin (litmus)redblue

3 0
2 years ago
When the energy needs of the body cannot be met in any other way, the last resort of the body is to ______________________.
antoniya [11.8K]

Answer:

Catabolysis

Explanation:

Catabolysis is the last metabolic resort for the body to keep itself — particularly the nervous system—functional. Protein stores, especially in muscle tissue, provide the amino acids needed for the process.

7 0
2 years ago
Most organisms can be divided into two categories - prokaryotes and eukaryotes. What is the main difference between these two ca
svetoff [14.1K]
The best choice is D prokaryotes dont have a nucleus  <span />
4 0
3 years ago
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Describe the four levels of protein structure. For each level, include: the name of that level of structure how the protein is a
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here are the structures i hope it helps

Answer:

primary, secondary, tertiary, and quaternary.

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3 years ago
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