a species can gradually change into new species
There must be genetic variation in the population
The system must not be in hardy-weinberg equilibrium.
resources must be limited in the ecosystem
A) natural selection ( apex (
Mathus felt that population is limited by food supply so we need to limit population growth or starve.
The peppered moth had white bodies and wings, peppered with black. This coloration blended well into the original British countryside, hiding them from their predator the birds. Factories of the early industrial revolution covered everything with soot. Now the white stood out against the black surroundings making them easy targets for birds. Over time the white moths were wiped out. But, a few of them were darker in color, these survived and multiplied such that the white peppered moth was replaced buy the dark ones.
Black moths were selected for when the trees turned black.
the moths with the high fitness were selected for
The black moths were more fit for survival, so their phenotype frequency increased.
Why do organisms in different places have different traits (apex)
allele frequency change Apex :)
The beak could assist the bird with cracking open nuts,or attacking competitors.
it can help predict the outcome of an event
The method an organism uses to produce offspring
the way that a species creates offspring
It increases the biodiversity of the species.
There are enough resources for the birds.
The birds do not compete for resources.
The population has not reached carrying capacity.
There is no desert with a rainforest.
D, organisms are born with them. Apex
Different environments have different abiotic conditions
Each species has a special break adaption. - APEX
the moths with the highest fitness were selected for. (apex)
They make the species more likely to survive. - APEX
An animal can not BE a behavioural adaption, it can only DISPLAY a behavioural adaption.
The fittest organisms survive and reproduce
They are passed along to offspring.
A bird has fathers that help it fly father. (Apex)