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melisa1 [442]
3 years ago
14

What are autosomes and how many do humans have?

Biology
1 answer:
Vaselesa [24]3 years ago
5 0
Auto dimes are chromosomes that is not an allsomes and human have 22 of them.
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dolphi86 [110]

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Choosing a disinfectant:

When selecting a disinfectant, keep the following things in mind:

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  • The conditions of usage of disinfectant.

Application of disinfectants :

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Therefore the correct choice is an option (A).

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7 0
2 years ago
Fossils up to 75,000 years old can be dated with ______.
kodGreya [7K]
Fossils up to 75,000 years old can be dated with Carbon-14.
 
Radio isotopes can be used for the age determination of the fossils. Carbon-14 is a common isotope which is used for that purpose. But the half- life of the Carbon-14 is relatively small as 5730 years. That means the amount of Carbon-14 will be half after every 5730 years. Hence, decay is very fast. So Carbon-14 cannot be used forage determination which is more than 75000 years due to the low accuracy.
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What is a scientific hypothesis? In what two ways can a hypothesis be tested?
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A scientific hypothesis is an educated guess that is made about an observation based on the prior knowledge of the scientist. Hypothesis are always testable.
An hypothesis can be tested through experimentation and it can also be tested through deductive methods.
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C. Charles Overton , lipids

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Answer: Directional selection occurs when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other. ... Directional selection does the “heavy lifting” of evolution by tending to move the trait mean toward the optimum for the environment.

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