Fish, poultry, lean meats, and nuts should be consumed for which of the following nutrients?
a. calcium
b. carbohydrates
c. protein
d. vitamin d

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient