When a man and a women come together it is called sexual reproduction.
(had to keep it pg for the kids)
its necessary to keep the generations of humans alive. if this doesn't happen the human race will be no more.
There are all kinds of people who have different kinds of kids(skin color and features)
Where are the "following structures"?
B, C, D
A is r-selected species
Correct answer: D
A pollen is where male gametes are produced and so the number of chromosomes, as we are talking about gametes, is n. This means that the grain of pollen will only have a copy of each gene, and therefore only one allele for each gene - one S, and one T or t. So, the possible combinations are ST and St.