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Oksi-84 [34.3K]
3 years ago
12

Which statement most completely.describes the role of a cell in a single cell organisms

Biology
1 answer:
Serjik [45]3 years ago
5 0
<span>Many life forms consist of a single cell. As well as simple bacteria, there are more complex organisms, known as protoctists. Unlike bacteria, they have complex internal structures, such as nuclei containing organized strands of genetic material called chromosomes. Most are single-celled, but some form colonies, with each cell usually remaining self-sufficient.
</span>
Prokaryotes are unicellular organisms whose cells lack a nucleus. A nucleus is a dense are in a cell that contains nucleic acids the chemical instructions that direct the cell's activities.
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Two alligators are heterozygous for albinism (Aa). The dominant allele (A) codes for normal pigmentation, and the recessive alle
Masja [62]

Answer:

a. 25%

Explanation:

  • When using a punnet square, both parents will have genotypes (Aa)
  • There is a 25% chance that the offspring will inherit the recessive genes for albinism from each parent
3 0
3 years ago
Qué no tienen los virus que sí tienen
juin [17]

Answer:

Viruses today are not considered living things, since a comparison of archaeobacteria and living things in general cannot have autonomous reproduction methods, if they need to be replicated in a DNA or RNA replication medium foreign to them.

This means that their DNA or RNA cannot replicate by itself, that is why they need to be detected in cells or bacteria (forming bacteriophages) in order to assemble in the DNA of these living beings and replicate in a "hidden" way.

Explanation:

There are cells that recognize the invasion of certain viruses so they self-destruct and do not allow replication of it in the replication of their own DNA, RNA, but there are others that do not, that is why there are viral diseases such as HIV.

On the other hand, in the case of bacteria, they form bacteriophages or form mutations in the DNA, RNA of these living prokaryotic organisms, resulting in more pathogenic or potentially dangerous microorganisms.

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3 years ago
I need a funny but appropriate answer so my teacher loves me ahhhh. It's not a serious question but i just want to hear your tho
Stella [2.4K]

Answer:

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3 years ago
What does a plant need to create a glucose molecule in photosynthesis?
Rina8888 [55]

Carbon dioxide and oxygen.

8 0
2 years ago
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Which of the following would have the greatest ecosystem diversity? Group of answer choices a lake a prairie the land an organic
miv72 [106K]

Options:

  • a lake
  • a prairie
  • the land an organic farmer uses to raise crops to feed his dairy cattle
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Answer:

a large island in the tropics that has snowcapped mountains

Explanation:

The land a farmer uses is likely to be quite highly regulated in order to ensure that his dairy cattle thrive. That means the growth of certain plants will be controlled, and this will likely impact diversity.

A lake and a prairie could have diverse and balanced ecosystems. However, due to the limited habitat are likely only to harbour specific organisms. E.g. the lake will only harbor organisms that thrive in water environments.

A large island will, first of all, have a lot of space to support diversity. It is in the tropics, meaning it will have species suited to a hot and wet environment. Since it is an island, there will also be the involvement of sea/ocean dwelling creatures. However, there is also mountainous habitat that has snow, meaning it is high up and cold. This provides a habitat for even more species adapted to different environments.

Therefore, the island will be the most diverse.

8 0
3 years ago
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