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Lemur [1.5K]
3 years ago
9

Which substance completes passive transports and facilitated diffusion?

Biology
1 answer:
11111nata11111 [884]3 years ago
8 0
And: Facilitated diffusion is a type of passive transport that allows substances to cross membranes with the assistance of special transport proteins. Some molecules and ions such as glucose, sodium ions, and chloride ions are unable to pass through the phospholipid bilayer of cell membranes.
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Although selection operates against deleterious alleles in populations, they are rarely lost from these populations. For example
KonstantinChe [14]

Answer:

Deleterious alleles appear sporadically in a population

Explanation:

A population with a deleterious allele will have no or few individuals that have the ability to pass along these traits. These alleles appear less in a population because of selective pressure but they are not always absent. The alleles appear less often but are are not always passed on and the others that are genetically fit are able to pass along their genes. The reason the population equilibrium is not zero is because these alleles do appear but they are not necessarily passed along. These individuals may not be able to reproduce or reach the age of reproduction.

Deleterious alleles appear more often, making individuals less fit genetically, i.e. they pass fewer copies of their genes to future generations. Put another way, natural selection purges the deleterious alleles.

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3 years ago
Mark has diabetes and needs to undergo dialysis twice a week . Dialysis purrifies the blood by removing waste and excess water f
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The procedure of dialysis maintains the body in balance by withdrawing waste, extra water, and salt by preventing them from accumulating up in the body when the kidneys fail. It helps in maintaining a safe level of some kinds of chemicals in the blood, like sodium, potassium, and bicarbonate. It helps in monitoring blood pressure.  

Hence, dialysis helps in performing a function for the circulatory system of the body.  


3 0
3 years ago
What are differences during Interphase between plant and animal cells? What are differences during Mitosis?
rosijanka [135]

asa

Answer:

plant cells separate by forming a cell plate, animal cells membranes that elongate in cytokinesis.

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3 years ago
Which term describes organ systems that work together and maintain steady internal conditions when external conditions change?
Mashutka [201]

Answer:

I believe it is D.

Explanation:

Homeostasis refers to the relatively stable state inside the body of an animal. Animal organs and organ systems constantly adjust to internal and external changes in order to maintain this steady state

3 0
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The ground tissue of roots is composed of what types of cells?
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The sclerenchyma is the tissue in which creates the plant firm and hard. The two kinds of sclerenchyma cells exist fibers and sclereids. Their cell walls be made up of cellulose, hemicellulose and lignin. The sclerenchyma cells are the principal associate cells in plant tissues that have come to a close elongation.
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