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Rama09 [41]
3 years ago
5

Which of the following could be present in a prokaryotic cell?

Biology
2 answers:
PSYCHO15rus [73]3 years ago
7 0
Prokaryotes don’t have any membrane bound-organelles but they have DNA, a cell membrane and ribosomes
enyata [817]3 years ago
4 0
The prokaryotic cell has the cell membrane
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Populations evolve for many reasons. Suppose there is a population of plants that have either purple flowers or white flowers, a
sattari [20]

Answer: natural selection

Explanation:Natural selection, gene flow, gene drift and mutation are the mechanisms for EVOLUTION.

The dominant purple allele must have been acquired from previous parent gene, by natural selection

Definitely the available   alleles from previous flower population were white and purple flowers. But, because the parents of purple flowers exhibit VARIATION, in their gene pool,  they showed dominance over  the recessive white colour flowers in the same population.  

◼ from Darwin’s observation and deduction, Organisms who acquired certain characteristics from variation  tend to survive than others, and therefore pass these inheritable characteristics to their offspring.

◼Thus the purple flowers dominated the population for the available resources, among the other flowers colours, (competitions) therefore it leads to a stable population in size after a period of time., while the white colour flowers are recessive

◼Darwin concluded that, variants of best adaptation will be selected for by natural conditions operating in the environment of the population at that particular period (natural selection).

Based on this, natural selection takes place, and the purple flowers with best variation will have selective advantage (dominance)above white colour flowers(recessive).

Consequently, they have higher survival rates compare to white flowers in the population this is   survival of the fittest by natural selection of purple flowers

The frequency of the white colour flower will reduced because of less manifestation of traits from generation to generation from reduced gene pool due to recessive trait, however the frequency of Purple flower will increase because the number of copies of allele of purple flowers is greater than the total number of all the flowers population( white flowers+purple)

5 0
3 years ago
Which of these processes has a cooling effect on Earth?
Bingel [31]

I believe the answer is B: Earth's oceans absorb some of the carbon dioxide from the atmosphere.

4 0
3 years ago
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A client in labor is experiencing discomfort because her fetus is in the occiput posterior position. which nursing action will h
allsm [11]
For the answer to the question above, I think <u><em>"the nurse should </em></u><span><u><em>apply a pressure against her sacrum</em></u>".
</span><span>This will help alleviate the discomfort of the woman who labors because of the position of the baby.
</span><span>I hope this helps
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7 0
3 years ago
Evolution is a process of ___
Zarrin [17]

Answer:

  1. inheritable changes
  2. genetic
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I don't know about the second sentence, is it possible you give me a bit more of a context then maybe i can be of help

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3 years ago
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0.059 seconds equals how many milliseconds
adoni [48]
Id say it would be 59 milliseconds

6 0
3 years ago
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