That depends entirely on their physiology and the circumstances. If you have a fish that feeds mostly by harvesting the floor, for instance, natural selection might favour fish with stalks around the mouth for scanning the bottom and eyes on top to keep watch for predators.
Natural selection is something that happens over time and is somewhat dependent on the conditions of climate and environmental changes. There are times when natural selection can favor different phenotypes, if and when the culture starts to seek out others with certain traits and characteristics to breed.
Not
False my friend
natural selection
No, all life evolves. Bacteria evolve, viruses evolve, protists evolve, plants evolve, fungi evolve and animals evolve. Evolution is driven by Natural Selection. So, no. The evolution of all life on Earth is driven by Natural Selection: all bacteria, plants, animals, mammals, fish, insects, biochemical pathways, behaviours et cetera evolve by Natural Selection.
stabilizing selection
Natural selection is something that happens over time and is somewhat dependent on the conditions of climate and environmental changes. There are times when natural selection can favor different phenotypes, if and when the culture starts to seek out others with certain traits and characteristics to breed.
because he died from.....
Not
Brown
False my friend
It would favor white because then it could camouflage and hide from predators and would be most likely to survive
direct evidence is the observation as it occurs
Timid mice are less likely to be caught by a predator.
Leave more offspring
Those pathogens that survive the drug attack and then reproduce progeny having this same resistance is a classic selection scenario.
Natural selection favors a trait by increasing its frequency in a population. Natural selection is differential reproductive success. If one variant of a trait enables an organism to have and raise more offspring successfully than other variants in a particualr environment, then it will become more common in the population.