Answer:
(2) low power: 100 small pollen grains
high power: 25 large pollen grains
Explanation:
Compound light microscopes are devices used to greatly magnify objects. They have several objective lenses, a low-power lens magnifies 10 times (10X) the objects, and the high-power lens magnifies them 40 times (40X).
For that reason, when observing the pollen grains with the high-power lens the student will see them bigger than with the low-power lens. However, the field of view (the visible area through a lens) is reduced when a higher power lens is used, so fewer pollen grains will be seen.
The answer therefore is the option of higher number of pollen grains of small size for the low-power lens, and lower number of pollen grains of larger size for the high-power lens.
Answer:
1/2
Explanation:
Mendel's law of segregation states that pair of alleles representing a gene segregate during gamete formation and randomly unite during fertilization.
<em>Hence, a gene represented by Rr alleles will segregate into R and r gametes. Out of the two gametes, one will carry R allele while the other one will carry r allele. The probability that a gamete will carry an r allele therefore is 1/2.</em>
The phospholipid bilayer is the cell membrane of the cell so the only answer choice that makes any sense is the first one - The balance of ions inside a cell will be disrupted and proteins couldleak out because the phospholipid bilayer forms the cell membrane.
When temperature goes up, feedback inhibition caused the body to sweat, cools you in as evaporating. When body gets cold, it will stopped sweating, and starting to shiver to generate heat
hope this helps
The answer is C. If it's being controlled then the ones caring out the experiments are the head of it.
