Explanation:
human male reproductive system produces gamets known as sperm which are capable of flagellated movement
All the genetic materials shown in the typical plant or animal cell will exist in every cell”.
<em><u>HOPE</u></em><em><u> </u></em><em><u>SO</u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u>HELPS</u></em><em><u> </u></em><em><u>YOU</u></em>
Answer:
The most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago. ... 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago in the Precambrian.
Answer:
connective tissue, epithelial tissue, muscle tissue, and nervous tissue.
Explanation:
Answer/Explanation:
We are not told if the plant has 20 chromosomes in total or 20 pairs of chromosomes. E.g. a human has 23 chromosomes, but we are diploid, so there are 46 chromosomes present in most cells.
An exception to the rule is the gametes, or the sex cells, where we are haploid. We have 23 chromosomes in these cells.
Pollen cells in plants are the sex cells. Therefore, they are haploid. If we assume that 20 chromosomes is the haploid number (and there are therefore 20 pairs of chromosomes) then the pollen will have 20 chromosomes.
If we assume that 20 chromosomes is the diploid number (and therefore there are 10 pairs of chromosomes), then the pollen will have 10 chromosomes.
