The vegetal pole of a frog zygote differs from the animal pole in that the vegetal pole has a higher concentration of yolk.
After the fertilisation of the egg by the sperm in a frog, three regions are formed in the zygote. These are:
- Upper animal hemisphere or upper animal pole which shows pigmentation.
- The grey crescent which is a small area with almost no pigmentation. It is present in between the upper animal pole and the lower vegetal pole.
- Lower animal hemisphere or lower vegetal pole which is white in color.
Thus, the vegetal pole of a frog zygote differs from the animal pole in that the vegetal pole has a higher concentration of yolk.
Learn more about the frog zygote here: brainly.com/question/14951741
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I believe it goes in the following order top down
1 5 3 4 2.
<span>Strip mining is used where coal seams are located very near the surface and can be removed in massive layers, or strips. </span>
They are found in the body
Answer:
The correct option is A
Explanation:
To determine if water temperature has an effect on weathering of sedimentary rocks, different number (perhaps three) of identical sedimentary rocks should be obtained and then individually placed in different water temperatures (with at least one of the "water volumes" used for each having a temperature close to the room temperature so as to be used as the control).
Thus, each of the identical sedimentary rock can be broken into three and placed individually; as in one part of the rock in 20 °C of water (control), another part of the rock in 40 °C and another in 60 °C of water.
This above procedure should be repeated for the remaining two other identical sedimentary rock to confirm if there is any effect.
