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Studentka2010 [4]
3 years ago
11

Help meeeeeeeeeeeeeeeeeeeeeeee please???

Biology
1 answer:
SCORPION-xisa [38]3 years ago
5 0
It's a it's really easy
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In northern Canada a population of rabbits was predominantly white in color. The allele for white color is recessive while the a
polet [3.4K]

Answer:

B

Explanation:

Directional selection tends to evolve towards one specific trait. In this example, white rabbits no longer have a competitive advantage because of disappearing snow. This means they are more easily spotted by predators, resulting in reduced fitness and less chance they will live to reproductive age and pass their recessive white alleles on.

Natural selection will favor the gray colour allele, increasing the frequency oft this previously rare allele.

6 0
3 years ago
Which of these is true of prokaryotic cells but not true of all eukaryotic cells?
Oksanka [162]
Pro cells have cell wall but eukar don’t
8 0
3 years ago
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Help please ^w^ plz.
MrRissso [65]
1. C
2.B
3.C
4. A
5. False
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4 0
3 years ago
In fruit flies, the allele for white eyes is recessive to the allele for red eyes. In a generation of fruit flies, 45 males with
Aleksandr [31]
1 is C - see first attachment. Genotypes with Y's represent males, and big R represents red eyes, while little r represents white eyes. For example XRxr is a heterozygous (red-eyed) female, and XrYr is a homozygous white-eyed male.

2 is B because the absence of functional proteins and some ribosomes due to the mRNA strand is not as detrimental as the loss of the entire cell.

3 is B. (The insertion of 3 base pairs into a genetic sequence is the length of a single codon, meaning that only one amino acid in the entire polypeptide was added) 

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3 years ago
Jim and tom are trying to determine whether their ideas are scientific or pseudoscientific. Jim's idea is non-testable, and Tom'
vlabodo [156]
Only toms idea could be scientific since it is testable, can be tested by others, have a hypothesis, and be proven
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