Answer:
Landfill
Explanation:
(I am assuming that the ones highlighted are the answer choices) Landfill can cause all the dirt and things in the ground to get into the ground water and make it unhealthy to drink.
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The correct answer is option (A) cattle egrets eating insects stirred up by grazing bison.
The cattle egret is a cosmopolitan species of heron and are white birds normally found sitting on the back of the cattle. They often accompany cattle or other mammals catching insects and small vertebrate prey which are disturbed by these animals. It is one of the popular examples of commensalism. It is a type of relationship in which one organism benefits from the relationship without harming the other organism. Cattle egret follow grazing cattle and eat flies which are dislodged by the movement of the livestock. They eat up the insects hiding in the vegetation closer to the grounds, which get stirred up when the cattle or grazing bison walk through them.
Our vision can adapt to change between bright light and dark, but it takes a moment because the rhodopsin in our receptor cells must break apart into all-trans-retinal and scotopsin for light adaptation and recombine for dark adaptation.
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Rhodopsin is a pigment-containing sensory protein (photopigment) that converts light into an electrical signal. Rhodopsin consists of 11-cis retinal combined with scotopsin. When rhodopsin absorbs light, retinal changes from 11-cis to all-trans retinal and the retinal-scotopsin complex breaks down. This process is called bleaching of the pigment and it triggers a signal transduction along the optic nerve to the visual cortex in the brain.
In the dark, rhodopsin regenerates.</span>
Answer: Action potential
Explanation:
Action potential is the electrical signal that typically moves from the cell body down the axon to the axon terminals. There are other terms to refer to this, and those are impulse or spike. This is so because action potential is created when "the membrane potential of a specific axon location rapidly rises and falls," according to its definition.
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle. ... The separated chromosomes are then pulled by the spindle to opposite poles of the cell.
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