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Aliun [14]
3 years ago
15

What was Anton van Leeuwenhoeks contribution of cell theory?

Biology
1 answer:
True [87]3 years ago
5 0

Answer:

His cell observations have no indication of the nucleus and other organelles found in most living cells, he made use of a microscope containing improved lenses.

Explanation:

None

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Why don't we all burn up?<br> Earth science
Vanyuwa [196]

Answer:

We have the atmosphere protecting us

Explanation:

There are different layers of the atmosphere that help us survive such as the ozone layer which blocks most uv rays from the sun causing us to burn less easily  

7 0
3 years ago
Please help me with this question
Romashka [77]

The answer should be D

5 0
3 years ago
Which best describes the molecules that make up protein
vladimir1956 [14]

Answer:

Proteins are made up of monomer units connected together. These units are called amino acids. Each amino acid has a carbonyl group and an amine group. These two groups will link when the amino acids are added. Also, an amino acid has a specific R group that characterizes which type of amino acid it is.

Hope this helps.

8 0
3 years ago
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An __ reaction is one that takes in energy, causing the surroundings to get __
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Answer:

1.

Explanation:

1. imma pro

4 0
3 years ago
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A flea and dog are an example of (commensalism herbivory mutualism parasitism) , because the flea irritates the dog's skin and f
Semmy [17]

Answer:

parasitism

mutualism

commensalism

Explanation:

Commensalism is defined as a relationship between two living organism in which one organism get benefits and the other organism neither benefit nor harm.

Herbivory is defined as the relationship between organisms and plants in which organisms consume plant material.

Mutualism is defined as the relationship between two living organism in which  both organisms benefit each other.

Parasitism is defined as the relationship between two living organism in which one organism get benefits and the other organisms get harmed.

So, a flea and dog are an example of parasitism, certain bacteria live in the digestive tract of humans is an example of mutualism, and relationship between cattle egrets and an elephant is an example of commensalism.

Hence, the correct answer is:

parasitism

mutualism

commensalism

7 0
3 years ago
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