BIOLOGY HIGH SCHOOL

Which term describes a pure substance that is made up of only one type of atom?1)matter
2)rock
3)compound
4)element

Answers

Answer 1
Answer:

ELEMENT


A pure substance is one that is composed of only one type of material.

This material may not necessarily be made from only one type of element, but can be composed from different elements yet be pure. An example of this is water. Water is made up of oxygen and hydrogen. Water that is free of contamination is termed as pure.

Examples of pure substances are:

1.Gold

2. Iron

3. Carbon

4. Sugar

5. Nitrogen gas

6. Oxygen gas

7. Salt
Answer 2
Answer: Element describes a pure substance that is made up of only one type of atom. Elements cannot be broken down into more simpler substances. There have been 118 elements discovered by scientists so far. 

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Answers

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_____ eat herbivores omnivores or other carnivore
_____ eat producer and consumers

Answers

1.) consumers
2.) omnivores

vague I think, :l

Answer:

1)Consumers

2)Omnivores

Explanation:

Primary consumers are animals that eat primary producers; they are also called herbivores (plant-eaters). Secondary consumers eat primary consumers. They are carnivores (meat-eaters) and omnivores (animals that eat both animals and plants).

Omnivores eat both producers and consumers. Most people are omnivores, since they eat fruits, vegetables, and grains from plants, and also meat and dairy products from animals. Dogs, bears, and raccoons are also omnivores

A virus is referred to as a particle rather than a cell because structurally it is a A) RNA core in a carbohydrate envelope. B) nucleus surrounded by a protein coat. C) plasmid of DNA surrounded by a capsid. D) RNA or DNA core surrounded by a protein coat.

Answers

The correct option is D.

A virus refers to an infectious micro organism that is made up of nucleic acid molecule that is enclosed within a protein coat. Viruses are only able to reproduce and multiply when they come in contact with living cells, in the absence of living cells they remain dormant and they do not show any sign of been a living thing. The nuclei acid molecule of a virus can be in form of a DNA molecule or a RNA molecule.

Answer: The answer is D/RNA or DNA core surrounded by a protein coat.

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Answers

The enzyme is helicase.

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Answers

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Answers

I assume that the answer is A: 
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