Answer:
A mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation.
When something needs to be transported against its concentration gradient, or a molecule is too big to simply diffuse through a membrane, active transport has to be used. So active transport requires energy (ATP).
Examples:
1. Antiport pumps: transport one substance in one direction while transporting another substance the other way. An example of this is the sodium-potassium pump.
2. Symport pumps - uses a substance that wants to move from an area of high concentration to low concentration and carries another substance against its concentration gradient. An example of this is the sodium-glucose transport protein
3. Endocytosis - large amounts of extra cellular fluid can be taken into a cell - needs ATP to bind proteins in the cell membrane and causes them to change their shape...which eventually causes the surrounding of the fluid to be brought in (a vesicle).
4.exocytosis - opposite of above
Answer:
The fittest organism survive and produce.
Birds like to lay fossils. Salamanders have tails btw.
Hope this helped!
The optic canal transmits the optic nerve and ophthalmic artery(option-E).
<h3>What is ophthalmic artery?</h3>
The internal carotid artery's first branch is the ophthalmic artery. It separates right near the cavernous sinus. The orbit, meninges, face, and upper nose are all supplied by the numerous branches that the ophthalmic artery produces. Vision may be compromised if the ophthalmic artery is blocked.
The lacrimal gland, conjunctiva, and eyelids are all supplied by it. In order to supply the posterior uveal tract, the ophthalmic artery releases a number of posterior ciliary arteries that cross the sclera. Being end vessels, the posterior ciliary vessels are susceptible to sudden occlusion, which can result in infarction in the choroid region.
To know more about artery visit:
brainly.com/question/24870470
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