What is immigration?
O
A. When animals move into an ecosystem
B. When animals die in an ecosystem
O
C. When animals are born in an ecosystem
O
D. When animals leave an ecosystem
SUR

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a. the offspring are more likely to have freckles. b. the offspring are more likely to have no freckles. c. the likelihood of the offspring having freckles and not having freckles is the same. d. the likelihood of the offspring having freckles and not having freckles cannot be determined.