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kodGreya [7K]
3 years ago
13

Once nutrients are absorbed through the intestinal wall and into the blood stream, they are taken up through the portal vein and

delivered to the
Biology
1 answer:
kondor19780726 [428]3 years ago
6 0
To the heart since it needs energy to function
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Earth’s biosphere is
irakobra [83]
One of the 4 layers that surrounds the earth.
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When is cladistics more useful than linnaean taxonomy
Lena [83]
Cladistics<span> is an approach used for biological classification in which organisms are categorized based on  their shared characteristics that can be used to traced to a group's most recent common ancestor.</span>
3 0
2 years ago
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How can DNA be used to illustrate that evolution has occurred?
Alexxandr [17]

DNA can illustrate that evolution has occurred since in the process of natural selection advantegeous genes or traits have been selected to pass on through generations and further more evolve as long as the species survies and is successful in reproducing.

4 0
3 years ago
Which of the following is the most likely description of a trait which shows up rarely in a family tree equally in both sexes an
erma4kov [3.2K]

Answer:

The correct answer will be option-A

Explanation:

In the pedigree analysis, the description of a trait help shows the relation of a trait linked to a gene.

The pedigree analysis is usually used to determine the heredity of a disease in a family which has been described in the question also as

1. The trait is rare and present in both sexes- this shows that it is independent of sex chromosomes and since is rare is recessive.

2.  A consanguineous mating- mating between close relative which result in autosomal recessive trait as the genes for the trait must be present on both the parents which happen only when they are closely related.

Thus, option-A is the correct answer.

7 0
2 years ago
If a person with o blood type produces offspring with a person with b blood type, then what percentage of their offspring will b
Marysya12 [62]

Answer:

In humans, blood group is determined by three alleles I^{A}, I^{B}, and i.

I^{A} and I^{B} are co-dominant whereas i is recessive to other two.

Thus, if a person with blood group O produces offspring with blood group B then the other parent must contain I^{B} allele.

The genotype of other person can be I^{A}I^{B}, I^{B}I^{B}, or I^{B}i.

There is only one condition in which the person can have offspring with blood group O that is, when the other parent is I^{B}i.

In this condition, the probability of an offspring to have blood group O is 50%.

In other conditions, the probability of an offspring to have blood O is 0%.

7 0
3 years ago
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