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Sergeeva-Olga [200]
3 years ago
15

Controlled variables.

Biology
1 answer:
Schach [20]3 years ago
3 0
I think it should be b
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A hos was commonly made from shark's teeth and whale bones. <br> a. True <br> b. False
nataly862011 [7]
False
their legs were made form the spine of stingrays and they were used to ward of bad storms.
4 0
3 years ago
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Which conclusions can be made about the animals of each class based on the structural similarities of the embryos?
Elena L [17]

The correct answer is option 1, that is, there is an evolutionary link between the classes.  

The study of one kind of proof of evolution is known as embryology, that is, the study of embryos. An embryo refers to an unborn young in its initial stages. Embryos of various distinct types of animals, that is, mammals, reptiles, birds, fishes, etc. seems very identical and it usually becomes tough to differentiate them apart.  

Various traits of one kind of animal are observed in the embryo of another kind of animal. This illustrates that the animals are identical and that they are developed identically, signifying that they are associated, have common descendants and that they began the similar, slowly developing distinct traits, however, the fundamental plan for the beginning of the creature remains similar.  


3 0
3 years ago
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The difference between the images projected onto each eye is referred to as ____.
Sonja [21]
I do believe it is C hope this helps its been a while since i was leaning about this.....
3 0
4 years ago
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Assume that a black guinea pig crossed with an albino guinea pig produced 5 black offspring. when the albino was crossed with a
Radda [10]
As a matter of terminology, albino guinea pig actually refers to a white fur guinea pig, whose genotype is homozygous recessive (bb).

If it crossed with a black fur guinea pig and gave 5 black fur offsprings, there is a good chance that the black fur parent is homozygous dominant (BB).
The Punnett square would be as follows:

       B      B
b     Bb   Bb
b     Bb   Bb
So they are all heterozygous black fur offsprings.

However, it is not impossible that the black fur parent be heterozygous, namely

       B      b
b    Bb   bb
b    Bb   bb

Giving a 50% chance on each colour.  Thus it is possible (with probability 1/32) that all five offsprings are heterozygous black fur if one of the parents was heterozygous.

In the second case, a homozygous recessive and a homozygous dominant parent will never give a white offspring.  So it is sure that the black fur parent is heterozygous, with the following Punnett square:

       B      b
b     Bb   bb
b     Bb   bb

With a 50% probability for each of Bb (black fur) and bb (white fur).
the distribution 4,3 demonstrates this perfectly.
6 0
3 years ago
DNA replication (experts only) 100+brainy
yan [13]
Helicase unwinds the DNA, then DNA polymerase replicates the DNA from 5' to 3' matching the nucleotides with one another. Thymine matches with Adenine and guanine matches with cytosine.
Hope this helped.
7 0
4 years ago
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