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irina [24]
3 years ago
8

Who recognized the different layers of rock contained unique collections of fossils?

Biology
1 answer:
mel-nik [20]3 years ago
4 0

Hi!


The person who first recognized that different layers of rock were home to unique collections of fossils was William Smith.

He discovered that different layers of rock which were representative of different deposition periods (strata) were always oriented in the same manner relative to each other, and that each of these strata contained a unique collection of fossils that pertained to extinct lifeforms.


Hope this helps!


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In a population of cats, the phenotypic frequency of black cats is 91%, and the phenotypic frequency of white cats is 9%. Assumi
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Answer:

1. Allele frequency of b = 0.09 (or 9%)

2. Allele frequency of B = 0.91 (0.91%)

3. Genotype frequency of BB = 0.8281 (or 82.81%)

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Explanation:

Given that:

p = the frequency of the dominant allele (represented here by B)  = 0.91

q = the frequency of the recessive allele (represented here by b)  = 0.09

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p^2 = frequency of BB (homozygous dominant)

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q^2 = frequency of bb (homozygous recessive)

p^2 = 0.91^2 = 0.8281

2pq = 2(0.91)(0.9) = 0.1638

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