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Kryger [21]
3 years ago
14

Cells are restricted to being small in size. Why are cells limited in size

Biology
1 answer:
antiseptic1488 [7]3 years ago
6 0
The answer is definetly A
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Stella wants to test the hypothesis “If carbon dioxide levels increase, the growth rate of sunflowers will increase.” She places
Jet001 [13]

The correct answer is option D. She should place one flower in a similar container, but not pump carbon dioxide into it. She should also give each plant the same amount of water.

In the experiment, a control should be present to compare the effect of the variable in the experiment. In the control sample, all the parameters except the variable should be same as the experimental group. In this way, the comparison of the effect of variable can be easily done in an experiment.

In this case, the variable is amount of carbon dioxide the plant receives. So, Stella should include a control group by placing the plant in the same container and leave it on atmospheric carbon dioxide supply, no extra carbon dioxide should be pumped into it.  Also, the amount of water she give to each plant should be the same to maintain the water level as constant.

6 0
4 years ago
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Why would an enginner not chooese material such as concrete when designing an earthquake proof
CaHeK987 [17]

Answer:

Materials like concrete can absorb very little energy, making them very suseptible to minor earthquakes.

7 0
3 years ago
20
Reil [10]

When tissues are harmed by bacteria, trauma, heat, or any other cause, an inflammatory reaction occurs.

<h3>What happen when a honey bee stings?</h3>

When a honey bee stings or a disease infects damaged cells, chemicals are released. chemicals are a group of substances that include prostaglandins, histamine, and bradykinin. These substances promote swelling by forcing blood vessels to leak fluid into the tissues.

During the inflammatory reaction, the following processes occurred:

Redness, swelling, and loss of function are all symptoms of heat.

Inflammation is the body's natural defense system. Damaged cells, irritants, and infections are recognized by the immune system, white blood cell kills the antigen and stimulates the other defense cell to act. this process is called a macrophage.

Learn more about defence system here:

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8 0
2 years ago
5.
blsea [12.9K]

Answer:

(I)

Explanation:

i. food web is a complex feeding structure, involving many food chain.

ii. a biological community of interacting organisms and their physical environment.

Two components are: Biotic(living things)and Abiotic(non-living things)

7 0
3 years ago
All stars one to eight times the sun's mass become ____ stars.
yarga [219]
<span>All stars one to eight times the sun's mass become "main sequence" star

In short, Your Answer would be Option D

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3 years ago
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