Let R is the dominant allele that gives round seed and r is the recessive allele that code for wrinkled seeds. So as the parent plants are heterozygous for round seed that means they have genotype Rr.
When they will cross with each other than 25% of the offspring would be wrinkled because only individuals with homozygous recessive genotype i.e, rr would be wrinkled and out of 4 only 1 individual with rr genotype would be produced.
Active transport is the process by which dissolved molecules move across a cell membrane from a lower to a higher concentration. In active transport, particles move against the concentration gradient - and therefore require an input of energy from the cell.
The correct answer to this question is letter "C) occupy different niches within the tree." Several species of warblers can live in the same spruce tree ONLY because they <span>occupy different niches within the tree. Hope this answer helps out your question. </span>
