Why do you think species remain in a stage of stasis?

1 answer:

4 0

They stay in stage of stasis because they are adapted to sourrounding and environement and they can easily develop without any changes.

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If two individuals who are heterozygous for the sickle-cell disease have children, their offspring: select one:

Ket [755]

The correct answer is b. will have a one-quarter chance of being a sickle-cell-free homozygote.
Sickle-cell disease is an autosomal recessive disease, which means that if two individuals who are heterozygous for the sickle-cell disease have child, there is a 25% chance of sickle-cell disease, 25% that the child will not carry any sickle-cell alleles, and 50% that it will have the heterozygous condition (will have an allele for disease).

4 0

4 years ago

What types of materials are expelled from cells during exocytosis?

alex41 [277]

Large molecules such as hormones materials are expelled from cells during exocytosis

Explanation:

The materials inside the cells are transferred to the outside of the cell and this manner is termed as Exocytosis. This method is termed as a kind of active transport since it needs energy for this transformation process. One of the major purposes of this process is to discharge trash matters like hormones and proteins.

For a cell to cell transmission and chemical signal messaging these methods are essential. Proteins that are newly generated are transferred to the peak of the plasma membrane by exocytosis. There are three general pathways of exocytosis.

5 0

4 years ago

PLEASE, help. Felis concolor can mate and produce offspring with Felis domesticus, due to being classified in the same genus and

ValentinkaMS [17]

The statement is - False.

Felis concolor, or rather Puma concolor, and Felis domesticus, or rather Felis catus, can not mate with one another.

The cougar (Puma concolor) and the domestic cat (Felis catus), are both classified as small cats, or rather as Felis, and they are indeed relatively close related, but not close enough to be able to mate and produce offspring.

The reason for this is that the both species, over time, have evolved totally different traits, and while still sharing the same basic characteristics, there's some that are very different, which will not allow for the production of offspring.

One very big problem, apart from the genetic incompatibility, is the size difference. The domestic cat is pretty small, averaging 4-5 kg, while the cougar is the approximately same size as the big cats like the likes of the leopard and jaguar. A cougar fetus will be too big for a domestic cat to bear, while a domestic cat fetus will be too small for a cougar to bear.

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3 years ago

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What is the tempature??

andrew11 [14]

Its at 64 i think, you’re counting by 2’s

4 0

3 years ago

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Pseudohypertrophic muscular dystrophy is a human disorder that causes gradual deterioration of the muscles. Only boys are affect

andriy [413]

The answer is; C

It is caused by the recessive allele because the parents appear normal but are carriers of the disorder (meaning they are heterozygous for Pseudohypertrophic muscular dystrophy). Only when the offspring is heterogenous recessive do they display the disorder.

The disorder is also sex-linked because it tends to affect only boys. This means that the disorder is probably coded for by alleles in the Y- chromosome that determines the male sex.

6 0

3 years ago