I think it’s covalent bond
Answer: the answer is c the independent variable is the presence of the rock tumbler and the student is modeling weathering.
Explanation:
The two types are Alcoholic fermentation and lactic acid fermentation.
Answer:
Double fertilization
Explanation:
The phenomenon of double fertilization is unique to flowering plants (i.e., angiosperms). Each pollen grain produces two male gametes (sperm cells), one of which fertilizes the egg to form the zygote, whereas the other sperm fuses with polar nuclei in the female gametophyte in order to form a triploid cell (3n) called endosperm. Subsequently, this endosperm will support embryonic growth by supplying storage nutrients and by serving as a mechanical barrier during seed development and germination.
One one side of the Punnet Square, label B. The other, Label b. Take the upper right corner for example. The solution would be Bb.