There must be genetic variation in the population
The system must not be in hardy-weinberg equilibrium.
resources must be limited in the ecosystem
yes
False
An organism with a charecteristic that is more helpful to its survival will be more likely to survive and breed than one without that characteristic.
They contain h2o and an egg
True
Resources must be limited in the ecosystem.
Evolution, of course. Evolution can happen without natural selection in some cases; drift, flow. Generally though, natural selection causes evolution and then, by definition, would come first.
Natural selection usually causes a species to change gradually
Yes, it is true.
true
True
.
For natural selection to occur, there must be variation in traits within a population, as these variations can affect an organism's ability to survive and reproduce. Additionally, the traits must be heritable, meaning they can be passed down to the next generation. There must also be differential survival and reproduction, where individuals with advantageous traits are more likely to survive and reproduce than those without. Lastly, the environment must exert pressure that favors certain traits over others.
True pollen comes from artichokes in which farts come from natural gas.
yes
False
mating must happen randomly