Young male chimpanzees look for mates outside of their own population. The males then take the females back to their group. Which of the following occurs in the original females' population? A emigration
B immigration
C mortality
D natality

Natalie had random hand movements when she was two months old. when she was six months old, she used to grab a block with her whole hand. now at the age of ten months, she can grasp the same block with her thumb and forefinger. this sequence of growth in her hand and finger movements is according to the pattern.

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.

Which process is represented a.) deletion b.) nondisjunction c.) translocation d.) insertion