What is a gene?
a. a section of a protein that codes for dna
b. the alternate version of a trait
c. the visible trait in the f1 generation
d. a section of dna that codes for a specific trait
think its d but i'm not sure..

When the intestine becomes infected with the food borne illness bacteria e. coli, the bacteria releases a enterotoxin that causes excessive loss of water and electrolytes in the intestines. necessary to return the osmolality of the intestines to normal?

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Sperm pass through the and connect to a short ejaculatory duct. vas deferens prostrates seminiferous tubules none of the above