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Ivahew [28]
3 years ago
15

How are pure substances and mixtures distinguished?

Biology
1 answer:
Pepsi [2]3 years ago
3 0

Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components. Hope this helps!

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1. Most familiar life forms live in regions of biomes that humans inhabit. (1 point)
Genrish500 [490]

Answer:

1. The first statement is true. A biome is defined as a large set of naturally occurring plants and animals occupying a major habitat. For e.g. forest, dessert, grasslands etc.

2. The given statement is True. Biodiversity is defined as the variety of plants and animals exists or existed in the world or in any specific habitat. The high level of biodiversity is important and beneficial for the environment.

3. This statement is False. Outside force such as earthquake, zone hole etc can certainly cause changes in the organism. For example, UV rays can cause cancer in an organism, dark colorization of peppered moth during industrial revolution.

4. It is True as species is defined as a group of organisms capable of interbreed and share common characteristics. It is the basic unit of biological classification. For example, <em>sapiens </em>is the species of human being.

5. Yes, the given statement is true. Charles Robert Darwin famous naturalist, biologist, and geologist. He was best known for his work in the field of evolution and gave the theory of natural selection. He is also known as the father of evolution.

6. No, all scientists were not agreed with Charles Darwin, for example, Lamarck, Weismann etc. However, Neo-Darwinism was much more accepted that Darwin original theory. Hence, the given statement is false.

7. Natural selection is one of the process of evolution. It sates that organisms better suited and adapted to their environment have better chances of survival. Organisms acquire new characteristics over the generations in order to adapt in a environment. Hence, the given statement is false.

8. The statement is true. However, recently it has been found that there are some bacteria which can inhabit the extreme conditions. They are known as extremophiles, for example, halophiles, thermophiles etc.

9. Yes the statement is true. These organisms are known as extremophiles, for example, halophiles (which live in high saline conditions), thermophiles (can live in high temperatures) etc.

10. This statement is false as there are many species which have not been discovered yet.

4 0
3 years ago
2) For a long time, algae were considered a part of the plant kingdom. Which statement best explains why most algae are now cons
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D. Algae do not have organs or specialized tissue. I think...
7 0
3 years ago
"tobacco smoke is responsible for what percentage of lung cancer deaths?"
-BARSIC- [3]
It has been estimated that active tobacco smoking causes close to 90% of lung cancer cases and is the cause of 87% of lung cancer deaths.
7 0
3 years ago
Evolution may come from natural selection acting on genetic variation caused by any combination of the following. CHOOSE ALL THA
Dmitrij [34]

Answer:

mutation

genetic

extinction

4 0
3 years ago
Help! Science quiz due at 9:30!
aalyn [17]

Answer:

My best recommendation is C.

Explanation:

I won't explain it because you should be able to figure it out using the process of elimination, but try C.

3 0
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