If all other factors affecting photosynthetic rates were equal and atmospheric CO2 concentrations were the main factor affecting photosynthetic rates, how would plant growth in an area that is about 30 degrees C in the daytime have changed over the course of the past 400,000 years?

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.