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Thepotemich [5.8K]
2 years ago
7

In the blood, about 99% of the oxygen is:

Biology
1 answer:
PIT_PIT [208]2 years ago
5 0
Is hemoglobin
i hope this will help you
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Which of the following statements about natural selection is true?A. Natural selection is a process whereby genes are selected r
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Answer:

C. Natural selection favors individuals that reproduce more than others.

Explanation:

Genetic variations present in the population are acted upon by natural selection. The organisms that have the adaptive traits which in turn make them able to survive and reproduce more than the other individuals are favored by natural selection.

Over generations, natural selection leads to the evolution of a new population with an increased frequency of the gene responsible for the selected adaptive trait.  

For example, the bacteria with antibiotic resistance were favored by natural selection as they can survive and produce more progeny in the presence of antibiotics than the bacteria lacking the gene for antibiotic resistance.  

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What is the term for the protective wall that helps bacteria survive unfavorable conditions? A. endospore B. botulism C. aerobic
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The answer is A

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Which substitution mutation has the potential to cause more damage? a) substitution of 3rd N-base to go from AAC to AAA b) subst
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The answer is letter A. substitution of 3rd N-base to go from AUU to AUC. Substitution mutations are a type of mutation in which a single nucleotide is substituted with a different nucleotide. There are many different ways that DNA can be changed, resulting in different types of mutation; this are the type of mutations Substitution, Insertion, Deletion, Frameshift.

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What does the formula for table salt indicate about that compound?
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It indicates what elements is composed by and how many atoms of one element are linked to the other.

For example, this is the formula for table salt is:

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The formula indicates that table salt (sodium chloride) is composed by sodium (Na) and chlorine (Cl) on a 1:1 ratio.


Hope it helped,


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If a substance undergoes a phase change, it has
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Phase change is the change in state. i.e. water to steam or ice to water
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