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bearhunter [10]
2 years ago
15

A person with blood type B gets severely injured and needs a blood transfusion. What blood type would a person need to be in ord

er to donate their blood to the injured person?
Biology
1 answer:
SashulF [63]2 years ago
5 0

Answer:

B or O

Explanation:

The same type (B) or the universal donor (O) In transfusions individuals with type O blood are often called universal donors.

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Does this mechanism produce a change in individuals or populations? Explain
I am Lyosha [343]
<h2><u>Answer:</u></h2>

<u>mechanism:</u>  the process of evoluton .

Evolution is the process by which veriety of  modern organisms have descended from ancient ancestors. Evolution is responsible for both the remarkable similarities of all  0rganisms and the amazing diversity of that organisms  but exactly how does it work? Fundamental of  the  process of evolution  is genetic variation upon which selective forces can act in order for evolution to occur.

Examines the mechanisms of evolution focusing on:

•<u>Decent </u>: the  genetic differences that are heritable and passed on to the next generation successfully.  

• <u>mechanisms of change</u>:   Mutation, migration (gene flow), genetic drift, and natural selection are act as mechanism of change .  

• The random nature of genetic drift  and their effects .

• How variation, differential reproduction, and  heredity result in evolution natural selection .

• How different species can affect each other's evolution through co-evolution.

All of these mechanisms can cause changes in the frequencies of genes produce change in  in populations, and so all of them are mechanisms of evolutionary change. However, natural selection and genetic drift (genetic flow) cannot operate unless there is genetic variation among organisms.  

6 0
3 years ago
Many scientists are worried about some of
NikAS [45]
I think the answer is (4) using large amounts of some materials that cannot be renewed :))
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7 0
3 years ago
what is the maximum number of amino acids that can be specified by a codon consisting of a sequence of four bases
vichka [17]

Answer:

64.

Explanation:

It is 64 because there are 20 amino acids with four bases ( A,T,C and G).

and genetic code can be read in triplets and also the four bases can occupy the positions. Eachh amino acid can be coded by the triplet codons. A triplet codon shows three nucleotides of the mRNA template that can code for amino acid

Therefore the number of codons is 4×4×4= 64.

8 0
3 years ago
What energy goes into the trumpet to create the sound?
astra-53 [7]
Vibrating column hope this helped you.
7 0
3 years ago
Read 2 more answers
The best classification system is that which most closely
Nataly_w [17]

Answer:

c.reflects evolutionary history.

Explanation:

The best classification system in biology is that that reflects evolutionary history, this is because more developed animals evolved from ancestors, this means that little modifications on the DNA happened over the course of million of years that created the animals that we know today, so this little differences would be relfected on a classification system.

6 0
3 years ago
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