The movement of an charged ion across a membrane can be altered due to what factors ?

Biology

1 answer:

valentinak56 [21]2 years ago

7 0

Answer:

HOW ARE YOU. I NEED THIS ANSWER AND POINTS....

Compare these two cells. Plant and animal and identify the difference and similarities.

WITH EXPLANATION

Explanation:

Compare these two cells. Plant and animal and identify the difference and similarities.

WITH EXPLANATION

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A(n) ________ acid is an acid that can leave solution and enter the atmosphere.

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A volatile acid can leave the solution and enter the atmosphere

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Name two types of evidence used to support the theory of evolution. explain how scientist use each type of evidence to provide s

joja [24]

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There are many types of evidence which support the theory of evolution such as comparative anatomy, fossil records, phylogenetic relationship, embryology et cetera

Comparative anatomy includes homologous organs and analogous organs. They support divergent and convergent evolution respectively.

For example, the homologous structure of limb of humans, birds, bat, horse, whale et cetera show that they are made up of the same set of bones which are humerus, radius, ulna, carpals, metacarpals, and phalanges.

It shows divergent evolution and supports that these organisms have evolved from a common ancestor.

Embryological evidence: When early stages of embryological development of different organisms are compared, it is found that these stages are similar at different levels of development.

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The appearance of pharyngeal-arch (gill-like structures) in vertebrates during embryo development.
Salamanders and terrestrial frogs pass through larval stages within an egg. They possess the features similar to aquatic larvae, however, when they hatched out the eggs being ready for life on land.

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Steroid hormones are not able to target every cell within the body, so the overall response is slower. They bind to receptors on the cell's surface and the receptors aid in helping the steroid hormones enter the cell.
Hormones work by binding to protein receptors either inside target cells or on their plasma membranes. The binding of a steroid hormone forms a hormone-receptor complex that affects gene expression in the nucleus of the target cell.
Steroids pass into a cell's nucleus, bind to specific receptors and genes and trigger the cell to make proteins.