An example of integration by the nervous system

a) the feel of a cold breeze
b) the shivering and goose bumps in response to cold
c) perceiving the sound of rain
d) the decision to go back for an umbrella

What does it mean for a cell membrane to be selectively permable

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

Iwanna go do something with my ideas? ?