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Vitek1552 [10]
3 years ago
11

The fossil record provides evidence that primitive humans were alive on earth at the same time as the

Biology
1 answer:
Kitty [74]3 years ago
5 0
Dinosaurs that were on earth
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3 years ago
From fossil evidence, you know two species shared a common ancestor approximately 50 million years ago. In comparing a known neu
MissTica

Answer:

Option c (2\times 10^{-9}) is the correct alternative.

Explanation:

Given:

Common ancestor,

= 50 million years ago

Base differences,

= 92

Now,

The predicted mutation rate will be:

= \frac{92}{50\times 10^6\times 1000}

= \frac{1.84}{10^9}

= 1.84\times 10^{-9}

or,

= 2\times 10^{-9}

Thus the above solution is the right one.

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3 years ago
Can any one tell what are some benifits of biology ?
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8 0
3 years ago
A biologist studying alpine wildflowers notices that two populations of similar species are able to occupy the same niches. Howe
garik1379 [7]

Answer:

Option A, Competition has restricted the ranges of both species

Explanation:

When two species which depend on the exactly same kind of resources, get into a mode where they prefer to stay in two different ecosystems without interfering each other’s circle and thus they get excluded from each other due to competition. This phenomenon of the ecosystem is called Competitive exclusion

According to Gause's Law of competitive exclusion two species which are competing for similar kind of resources are unable to stay together.  

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