What part of a red blood cell gives it the red color?

a. platelet

b. trachea

c. hemoglobin

d. capillary

Jan van helmont concluded that plants gain most of their mass from

What 3 factors are likely to contribute to obesity in a typical 10-year-old child?

Why do people need to drink? a. because b. that one c. the last one d. the other one

The use of marijuana among high school students has decreased significantly since the early 1990's. a. True b. False

What do biotechnologists use to cut DNA molecules at specific sequences? Transformation DNA ligase Restriction endonuclease DNA polymerase

Where do most carbon monoxide emissions come from? cars and trucks factories planes and trains boats

Which is not involved in digestion, waste removal, or reproduction? select one of the options below as your answer: a. stomach b. kidney c. testes d. lungs

How does your biomes climate and geography affect carrying capacity

How are landslides in mudflow similar how are they different

Which best details the movement of energy through aerobic cellular respiration? Heat energy is absorbed as chemical potential energy is transferred from oxygen molecules to ATP molecules.