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There are dark regions with numerous craters called impact craters and they cover one-third of the moon. The remainder of the moon is covered by lighter regions which have many ridges and grooves . The ridges are as high as 2000ft and stretch for thousands of miles.</span>
Question: Please use the following information to answer the question(s) below. A group of six students has taken samples of their own cheek cells, purified the DNA, and used a restriction enzyme known to cut at zero, one, or two sites in a particular gene of interest.
Analysis of the data obtained shows that two students each have two fragments, two students each have three fragments, and two students each have one only. What does this demonstrate?
Answer:
"The two students who have two fragments have one restriction site in this region."
Explanation:
A restriction enzyme, restriction endonuclease, or restrictase is an enzyme that cuts DNA into trashes at or close precise appreciation sites inside particles identified as restriction locations. Restriction enzymes are one session of the wider endonuclease collection of enzymes. In the laboratory, restriction enzymes (or restriction endonucleases) are used to cut DNA into minor trashes. The scratches are constantly made at exact nucleotide arrangements. Unlike restriction enzymes recognise and cut diverse DNA sequences.
A transfer of energy in practice means that one organism eats the other organism, so here we have to ask whether the first organism is eaten by the second.
A. from rabbits to green plants
Plants don't eat rabbits so -no!
B. from weasels to eagles
-this is the correct answer! Eagles do prey on weasels and eat them whenever they can
C. from eagles to rabbits
Rabbits don't eat eagles -so, no!
D. from green plants to weasels
Weasels are predators so they don't eat plants!
b. commensalism
d. coyote is at the top of that chain so it gets the least energy
c. mistletoe is a parasite. the other options aren't symbiotic relationships
Answer:
Astrocytes
Explanation:
Astrocytes are specialized glial cells found in the brain and spinal cord, they are responsible for maintaining the electrolytic composition of the cerebrospinal fluid, induce the formation of the blood-brain barrier and act as a support and guide for neurons during migration. They keep the ionic composition of the extracellular fluid of the central nervous system through the water channels, Aquaporin-4 (AQP4) and K channels, located in the pedicle processes of the astrocytes in the perivascular space, these cells exchange K and water in said perivascular medium away from the neurons. Astrocytes selectively edematize during hypotonic stress, while neurons do not.
