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andreyandreev [35.5K]
3 years ago
12

What was Robert Hooke's contribution to cells?

Biology
2 answers:
topjm [15]3 years ago
7 0

Answer:

A

Explanation:

charle [14.2K]3 years ago
6 0

Answer:

B

Explanation:

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Which best describes a gene
motikmotik

Answer;

a segment of chromosomal DNA

Explanation;

A gene is a  hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes.

It is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.  However, many genes do not code for proteins.

Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.

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3 years ago
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aphthous ulcers

Explanation:

I took a medical course so i know :D

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The answer is B

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just cause lol

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This is a solid substance that is composed of minerals.
Roman55 [17]

Answer: The answer is rock.

Explanation: A rock is a a solid substance in which it is composed of large quantities of one mineral, or contains 2 or more minerals.

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Explain how Swine flu becomes a biological hazard.​
klemol [59]

Answer:

Biological hazary are natural scenarios involving disease, disability or death on a large scale among humans, animals and plants due to micro-organisms like bacteria, or virus or toxins.

The H1N1 virus (Cause 9f Swine flu) is believed to have begun its deadly journey in pigs from a small region of central Mexico in January 2009. By March, the first cases were reported in California and Texas. By June, it was in 74 countries across the globe. A year later, when the WHO declared an end to the pandemic, between 151,700 and 575,400 people had died.

A massive global vaccine effort led by the US helped end the pandemic, but the H1N1 virus is still with us. Every year it circulates as a seasonal flu, causing sickness, hospitalisation and dead

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