Something that causes a population to decrease

Biology

2 answers:

ollegr [7]3 years ago

6 0

A war, a spreading disease like a plague, or natural disasters.

Savatey [412]3 years ago

3 0

A reduction over time in a region's population can be caused by several factors including sub-replacement fertility (along with limited immigration), heavy emigration, disease, famine, and war, plague, or natural disasters.

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Hemophilia is a hereditary bleeding disorder that primarily affects males. Why does this condition typically affect males more t

Ymorist [56]

Answer:

See the answer below

Explanation:

Hemophilia typically affects more males than females because the disorder is X-linked and recessive.

Females have two X chromosomes (XX) while males only have one X and one Y chromosome (XY). The two X chromosomes in females are capable of carrying alleles while the Y chromosome in males is hypothesized not able to carry alleles.

Consequently, the two X chromosomes in females will both need to carry the recessive allele of hemophilia in order for any female to be affected for hemophilia while the males only need their single X chromosome to carry the recessive allele in order to be affected.

In order words, the presence of a single recessive allele is not enough for a female to be affected while it is more than enough for a male to be affected. Hence, more males are affected b hemophilia disorder than females.

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Sickle cell anemia is a genetic condition that distorts the shape of the hemoglobin. This reduces the capacity of the red blood cells to carry oxygen. Another effect is that the distorted red blood cells come together forming a heavy and compact collection of cells that can block the flow of blood. The sedimentation rate is increased by sickle cell anemia.

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Describe how the dna code is translated into messenger rna

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There are many steps for that and here I'm going to explain it to you. The first step is that a cell copies the genetic instructions and then the dna unrolls. The second step is that RNA polymerase binds onto the strand. Then the third step is that the messenger RNA is ordered to go out of the nucleus into the cytoplasm to a ribosome. ANd the final step is the the ribosomes then take the mRNA and translate it into amino acids. That is how it is translated

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Which taxonomic group of land plants still in existence today was the dominant group of land plants when the angiosperms began t

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Answer: D. Gymnosperms

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The diameter of a typical eukaryotic cell is approximately ten times the diameter of a typical prokaryote. What is the ratio of

Finger [1]

Answer:

c. 1000:1

Explanation:

c. 1000:1

(remember that the volume is x^3)

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