Organisms that obtain energy and nutrients by absorbing or ingesting other organisms.
a: heterotrophs
b: autotrophs
c: decomposers

What must be done to breed dogs for a partical trait

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

What are the pros and cons of quadrat sampling?