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Vadim26 [7]
3 years ago
11

What is a good description for the cell wall?

Biology
1 answer:
Ipatiy [6.2K]3 years ago
7 0

The cell wall is the protective, semi-permeable outer layer of a plant cell. A major function of the cell wall is to give the cell strength and structure, and to filter molecules that pass in and out of the cell. A cell is the smallest part of an organism that still contains that organism's elements.

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What are the differences between first-generation od and second-generation od?
luda_lava [24]
<span>First Generation OD (organizational development) focused on the individual organizational member's behavior and interpersonal relationships as it relates to productivity and efficiency. Second Generation OD focuses on the future of the organization and requires that the leader do a lot of planning and coordinating to lead the organization in the best possible direction.</span>
7 0
3 years ago
Can the use of badger control (including culling) be justified in the
bonufazy [111]

Answer:

no. badger vaccination is better

Explanation:

spreading mostly happens cattle to cattle

"killing badgers will not solve the problem. Badgers are not the primary cause of the spread of bTB in cattle: the primary route of infection is cattle-to-cattle contact[2]. The Government's badger cull is flying in the face of science. It should be putting more resources into speeding up the development of an effective cattle vaccine, amongst other measures"

wildlife life trusts

5 0
3 years ago
After incubation, you observe that your streak-plate has heavy, uniform growth but no isolated colonies. Which of the following
Vadim26 [7]

Answer:

Option 3 and 4 are most likely correct

Explanation:

<em>Option 3</em>: We know that area 1 would contain heavy streaking and not single colonies. Therefore, if the loop crosses area 3 and enters area 1, it will definitely result in heavy streaking again.

<em>Option 4</em>: We always need to sterilize properly the loop when streaking in different areas. If we don't do it, it is possible that the loop contains a lot of bacteria that would be streaked again.

Options 1 and 2 are incorrect because, according to question, there is a uniform growth but no isolated colonies. So, contamination or mixed culture would not produce uniform growth streaking rather mixed with other bacterial types.

3 0
3 years ago
According to one hypothesis, life on earth emerged from (bluegreen algae/ amino acids/ molten metals/ crustal rocks) in the pres
Yuri [45]
1) The answer is <span>bluegreen algae
</span>
Bluegreen algae or cyanobacteria <span>are thought to have started life on earth because they converted the atmosphere that didn't have a lot of oxygen, into an atosphere with enough oxygen to exist life. That </span>oxygen was a product of their photosynthesis.

2) The answer is lightning.
<span>By Primordial Soup Theory, life began as a result of the combination of chemicals from the atmosphere and lighning (a form of energy) to make amino acids. Aminoacids are necessary to build proteins, and proteins are necessary for all the organisms.</span>
6 0
3 years ago
Read 2 more answers
a layer of rock contains an index fossil that is 250 million years old. How old is another layer of rock with the same fossil 1,
Korolek [52]

Answer: class

Explanation:

4 0
3 years ago
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