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Licemer1 [7]
3 years ago
5

What are the three main tenets of cell theory?

Biology
2 answers:
laila [671]3 years ago
6 0

Answer:

1 living organisms are composed of one or more cells.

2 The cell is the basic unit of structure and organization in organisms. 

3 Cells arise from pre-existing cells.

yaroslaw [1]3 years ago
5 0

Answer:

The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

Explanation:

I hope it helped you

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A scientist wants to examine a genetic disease in humans. The scientist hypothesizes that the disease can be treated by using ge
andreyandreev [35.5K]

Answer:

The correct answer is - develop new methods to test the hypothesis.

Explanation:

Human produce offsprings long time and development also take a long time in general and then to test a hypothesis, regarding the gene therapy helps to treat a disease, would take even more time.

So testing this hypothesis required developing a new method as other options are not possible. You can not change the time it takes in reproduction. Giving up is not the option in science.

8 0
3 years ago
Human activities have resulted in changes to the atmosphere. true or false
soldier1979 [14.2K]
True aka pollution from machines smoke carbon emissions etc
4 0
3 years ago
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Why does a hormone only act on specific cell types in an organism and not others?
Vilka [71]

Answer:

c) A cell must have the appropriate receptor before it can bind to the hormone.

Explanation:

Hormones are chemical signals that are secreted into the circulatory system acting as regulators within the body, and even though they can reach any part on the body, <em>only certain types of cells are equipped to respond, these cells are known as target cells, when the hormone reaches a cell with an adequate receptors it triggers a signal transduction and then a response.</em>

Therefore the correct answer is c.

I hope you find this information useful and interesting! Good luck!

5 0
3 years ago
Which of the following statements is the best description for the overall reaction that occurs during photosynthesis?
Nikitich [7]

Answer: I believe the answer is A

Explanation:

When plants undergo photosynthesis,  they make sugar. Why sugar? Because, it is one of their resources they need to survive. I know that they also need oxygen and water. Carbon dioxide is also vital in their survival. I hope this helps!

8 0
3 years ago
Name 3 characteristics of each physical state of matter.
Andreas93 [3]

Answer:

solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state.

Explanation:

5 0
3 years ago
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