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skad [1K]
3 years ago
11

Why do you need blood? & what organ pushes blood through your body?

Biology
1 answer:
QveST [7]3 years ago
5 0
We need blood because it carries oxygen and helps us sustain life. The organ that pushes blood through the body is the heart.
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In a small, isolated population of piranhas, one individual is born with a synonymous mutation in a gene that codes for the beta
IrinaVladis [17]

Answer:

The correct answer is: Genetic Drift.

Explanation:

  • In any population of any species having two or more alleles encoding for different genes, the frequency of occurrence of each allele among the individuals of a population can vary.
  • The frequency of one allele may be far more or far less than the frequency of other alleles.
  • The frequency of any particular allele is dependent on factors like random mating among individuals as well as natural selection, that tends to increase the frequency of those alleles which provide a survival advantage to the individual in a given environment.
  • Genetic drift can be defined as a phenomenon due to which the frequency of an allele encoding for a particular gene undergoes drastic change (increase or decrease) in a population due to random mating as well as natural selection.
  • In the given statement, one individual of an isolated population of piranhas underwent synonymous mutation in the beta-globin encoding gene.
  • A synonymous mutation can be defined as such a change in the nucleotide sequence of a gene that does not affect the sequence, structure or function of the protein encoded by it.
  • The increase in the frequency of the mutated form of the beta-globin gene after five generations to 5% indicates that due to the impact of random mating or natural selection or both, this has happened.
6 0
4 years ago
Which of the following processes is not a part of cellular respiration?
Fofino [41]

Answer: It is actually A. simple sugars are formed

This happens in photosynthesis but doesn't in cellular respiration which is why the answer would be A.

HOPE THIS HELPS!

3 0
3 years ago
HEELLPP ASAPP PLEASEE!!<br><br> don’t answer if u don’t know
ikadub [295]

Answer:

Brown is the dominant gene and white is the recessive gene.

Explanation:

If brown were to be dominant then the mice would most likely all be brown unless the got both a white from mom and dad which is most likely due to brown being recessive the dad could be part white you just wouldn't see it. And since the mother is white all of the mice get a white gene from the mom and since the dad most likely has a white gene hidden inside of him only tow mice became fully white while the siblings were brown.

Hope this helps.

6 0
3 years ago
What will you observe if the air temperature Is 53F and the dewpoint is 45F?
kondaur [170]
You will some water vapour
4 0
3 years ago
Which type of growth can occur only when a population has unlimited resources?
tigry1 [53]
C. Exponential growth occurs when there is unlimited resources. Since there is a surplus of food, there are a lot more babies are born because of the favorable circumstances.

Hope this helps :)
6 0
3 years ago
Read 2 more answers
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