Answer:
Darwin conducted an experiment with breeding pigeons.
Explanation:
The pigeons provided the perfect animal to test his theory of selection for quite a number of reasons including its trait diversity from wing structures to color patterns to size to flight patterns. From these experiments he concluded that by natural selection of randomly occurring traits that make species better suited for survival and reproduction, evolve in the astounding diversity of organisms on Earth today.
<em>(not my words) </em>
Meiosis actually combines the genetic components from two people and doesn't result in a genetic copy of either parent, and each child receives different genes from each parent. It creates genetic diversity among species instead of every member of a species having identical genes.
It can be frozen (32°F or 0°C) which would slow the energy of the molecules. or it could be boiled (212°F or 100°C) which would rapidly increase the speed of the molecules.
Answer:
Sperm and egg have 23 the number of chromosomes as a body cell.
Hope this helps =)
