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Drupady [299]
2 years ago
7

Which is used as evidence for the idea that the domain Eukarya evolved from unicellular organisms?

Biology
2 answers:
Radda [10]2 years ago
5 0

The domain Eukarya evolved from the unicellular organisms, and the proof of this can be derived from the endosymbiotic theory. According to this theory, the organelles, such as mitochondria and chloroplasts were previously free-living organisms. This is supported by the fact that the mitochondria and chloroplasts have their own DNA (deoxyribonucleic acid).

Hence, the answer is 'Option C - mitochondria and chloroplasts have their DNA.'

elena-14-01-66 [18.8K]2 years ago
3 0

Answer:

c

Explanation:

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Jonathan Swift choose a satirical essay to address the issues of Ireland's poor in A Modest Proposal. Why?
Sphinxa [80]

Answer : Option B) Swifts earlier attempts at nonsatirical essays and speeches had failed to elicit a response from the government.

Explanation : Jonathan Swift chose a satirical essay to address the issues of Ireland's poor in A Modest Proposal as his previous attempts to get a response from the government was failed and not fruitful. He thought of approaching in a satirical way so that he can pin-point the issues to the government in humorous way.

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2 years ago
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A tobacco plant is heterozygous for the genes for long stems (Ss), large leaves (Ll), and fibrous roots (Rr). It is crossed with
Ainat [17]
Firstly, start by doing Punnett squares for each of the characteristics. Attached are the three Punnet squares, made by me, as they should look in end.

For each of the Punnet squares, one characteristic each, we find that half of the offspring will be heterozygous for that characteristic.
Therefore, according to the product rule, you should now multiply the quantity of heterozygous for each characteristic and then obtain the total part of the offspring that's fully heterozygous.

\frac{1}{2}Ss×\frac{1}{2}Ll×\frac{1}{2}Rr=\frac{1}{8}SsLlRr

Total offspring×\frac{1}{8}=10
There is 10 plants in the total offspring that are heterozygous for all the considered three genes.

7 0
2 years ago
Based on the model explain whether the molecules shown crossing the membrane require energy to do so
Svetach [21]

Answer:

As the diagram is not given, hence let's generally describe the movement of molecules along the cell membrane.

Molecules can either pass through the cell without using energy through the process of passive transport. An example includes molecules of oxygen.

Molecules which are large and un-polar cannot move through the cell membrane easily. These molecules will require energy to move through the cell membrane. These molecules might move in with the help of the carrier or facilitated proteins. Examples include molecules of glucose.

4 0
2 years ago
The diagram below shows the relationship between photosynthesis and cellular respiration and the organelles in which they occur.
hichkok12 [17]

Answer:

The answer is: Carbon dioxide and water released by cellular respiration are used in photosynthesis.

Explanation:

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2 years ago
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What is the primary function of carbohydrates attached to the exterior of cell membranes?
Alekssandra [29.7K]

Answer:

The correct option is : a. Identification of the cell

Explanation:

The cell membrane, also called plasma membrane, is a semi-permeable membrane surrounding the cytoplasm of the cell, that protects and separates the interior of the cells from the external environment.

The carbohydrate layer of the cell membrane is known as the glycocalyx. In eukaryotes, <u>the carbohydrates present on the surface of the cell membrane play a important role in the cell-cell recognition and share information.</u>

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2 years ago
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