The answer is c) a pollen tube grows from the pollen grain into the ovary.
Pollen tube is used to transport pollen from the stigma of a
flower to the ovary. Actually, pollen begins to grow into pollen tube when lands on the stigma. It
grows until it reaches an ovule which is inside the ovary. This way it is secured that
a nucleus of pollen will fuse with a nucleus of the ovule and
that fertilization will occur.
Answer:
Specific dynamic action is the amount of energy needed to expenditure above the rate metabolic basal are due to the cost of processing food for the usage and the storage. After the heat produced by the adipose tissue which are activated after the consumption of the total meal, addition component in the dietary. The thermic effect of the food is one of the component of the metabolism.
E; translocation, which is a chromosomal rearrangement in which a part of genetic material from one chromosome becomes heritably (genetically) tied to another chromosome.*
Sources:
*Definition of "Translocation" (Paraphrase):
http://www.dictionary.com/browse/translocation?s=t
The Philadelphia Chromosome:
https://www.medicinenet.com/script/main/art.asp?articlekey=4870