1. which type of mutation is responsible
esponsible for new variations (alleles) of a trait?

Biology 1c cumulative exam i need awsners

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen