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Trava [24]
3 years ago
8

30)

Biology
2 answers:
marusya05 [52]3 years ago
4 0

Answer:

the answer is A

Explanation:

I got it USA test prep too.

elena-s [515]3 years ago
3 0

Answer:

The answer is A

Explanation:

I just got that question on usatestprep.

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Which statement accurately describes the characteristics of monocot and dicot leaves? Monocot leaves have branched veins, while
Juli2301 [7.4K]

The correct answer is that " Monocots have straight veins whereas Dicot have branched veins.

Monocots leaves are long and thin with small inter-cellular spaces between them. On the upper surface of epidermis, monocots have bulliform cells. Monocot leaves have parallel veins and they have equal number of stomata on both sides of a leaf.

On the other hand, dicots have broad and branched vein structure on their leaves. Dicot leave shave lost of inter-cellular spaces and they have maximum number of stomata cells on the lower side of the leaf.



3 0
3 years ago
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Being nocturnal is an adaptation that plants and animals use to deal with water scarcity and dry climate. Which biome is likely
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D, it has the driest, hottest climate, with little water supply


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3 years ago
In a single strand of dna the phosphate group binds to the
Ymorist [56]

Answer:

Pentose sugar

Explanation:

phosphate and pentose sugar are the backbone of a dna strand

8 0
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A biologist conducted an experiment to determine the rate at which DNA mutations occur. The biologist was careful to record the
jekas [21]
After obtaining observations and results, the biologist should analyze the results to see if they are consistent with her hypothesis. After this analysis, the biologist should form a comprehensive conclusion and publish her results. Upon publication, she should suggest improvements to the experiment and also check peer reviews on the experiment to see what she can improve herself. 
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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
shtirl [24]

Answer:

Natural selection by directional selection, was the driving force of evolution at work. The purple flowers parents were able to withstand the selective pressure and therefore emerged from completions with other flowers from previous generation, thus their dominance follow directional selection. This was the trait inherited by their offspring, the dominant purple

The gene pool of purple flower will be large; because of dominance in expression with each successive generation in both homozygote and heterozygote state, and therefore higher frequency of expression compared to the white flowers.

The frequency of allele depends on the rate expression of the allele in the population. Thus, the dominant purple flowers have high frequency of expression compared to the recessive white flowers which can only express itself in homozygote  recessive state

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