B the substrate fits into the enzyme
Bulk flow refers to the movement of phloem sap from a source to a sink in plants.
<h3>What is Phloem?</h3>
This is a vascular tissue found in plants which helps to transport and distribution of the organic nutrients derived from photosynthesis.
Bulk flow occur when these nutrients present in the phloem sap are moved from source to sink.
Read more about Phloem here brainly.com/question/983997
B. Electromagnetic waves
This is also called light. They can move through empty spaces because do not need a medium and they are the fastest because no matter how far they are they do not get smaller.
1) The female will also have 40 chromosomes
2) The organism has 20 homologous pairs
3) A gamete has half the chromosome, so 20 chromosomes
4) The offspring would have the same number of chromosomes as its parents, 40
5) The offspring would have the same number of homologous pairs as its parents, 20
