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<span>Mutagen is an agent that causes DNA mutations. UVA radiation penetrates
deep into the skin and acts as a mutagen. UV light is the most common source of
radiation that affects DNA, but it is a weak radiation and it penetrates only
the surface cells of your skin.</span>
Answer:
crab shells, fish scales, and fish bones might be found. And pieces of trash like chip paper, rubber bands, and tin foil.
Explanation:
Pellet can be described as a compressed mass of a substance, which is usually have round shape and small size.
it is understood that the pellet is formed when the birds catches the prey and swallow it in large chunks . Then, they digest the parts of the prey that are digestible, which goes down their esophagus, then through their proventriculus , and finally into the gizzard. The parts that are not digestible form a pellet.
It should be noted that the pellet is stored for several hours, after which it is regurgitated.
First the ovulation happened in the female's reproductive organ. The egg meet the sperm in uterus (Here, a lot of sperm will swimming to be the first one who get into the egg) the sperm has some enzyme in their head that make them can get into the egg (the egg contains jelly).
Once a sperm get in the tail will break and the nucleous from the sperm and the nucleous from the egg meet.
This is the fertilization process after ovulation