Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
Answer:
Prophase
The replicated chromosomes thicken and become visible as separate chromosomes during prophase stage of mitosis. :)
Manufacturers add sugars to their cigarette sometimes in the form of honey, etc. This makes cigarettes more enjoyable, particular and addictive in a way.
Hope it helped,
Happy homework/ study/ exam!
In the simulation, the brightness of the guppies is directly related to
how fast they are consumed by predators. This phenomenon is explained
simply and reflects natural selection. The brighter guppies are at a
selective disadvantage due to the ease with which predators are able to
spot them. The darker colored guppies are able to avoid predator better
so they live fore a longer time.
<span />
Search on google or google asl or yahoo ask
