True or False. As Finches move to a new island, random variation in the beaks/necks allowed them to better compete for food. Over time the variations became adaptations and each
population became a different species uniquely adapted to its' food source. * *
(1 Point)
True
O
False

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

Write the balanced chemical equation forphotosynthesis.

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.