On Which of the following changes takes place during the first trimester of a
woman's pregnancy?
A. The fetus begins rhythmic breathing movements.
B. The fetus develops hands and feet.
C. The mother feels the fetus move for the first time.
O
D. The fetus develops toenails, lips, and eyelashes.

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

Which animal is a producer in this ecosystem