<span>A boy's first ejaculation generally occurs around age 13 a full year after the body begins producing sperm. While there is the potential for a 13 year old boy to father a child full fertility is reached between the ages of 14 and 16.</span>
It can never be created or destoryed because it goes from form to form. For example electric energy helps start ovens that are electric, or chemical energy helps cars get into motion. Radiation energy helps give trees life, the sun helps give trees life.
Answer:
what about the phylogenetic tree?
Explanation:
Although it is unclear which trait is recessive, i will assume that the alleles for wrinkle are recessive.
R - Round
r - Wrinkle
The round seed is a purebred which means it is homozygous as well so it will be RR.
The Wrinkled seed is homozygous recessive which means it is fully recessive, meaning its alleles are rr.
None of the children will homozygous, they will all be heterozygous Rr
Answer:
Cells come from other living cells
All living things are composed of one or more cells
The cell is the basic unit of life.