What protein is hair mostly made of?

a. Hemoglobin

b. KeratinC. Insulin

Which of these is a trait that has probably been selectively bred for by human beings? A. eating bamboo in panda bears B. speed in horses C. breathing air in dolphins D. flying in bats

The diving reflex may allow a person to survive extended periods of submersion in cold water secondary to: Select one: a. increases in the metabolic rate and oxygen demand. b. bradycardia and a slowing of the metabolic rate. c.

What is it called when the vesticles are used to move substances out of the cell? A. Endocytosis B. Exocytosis C. Passive D. Diffusion

Some membrane proteins use energy to increase the concentration of hydrogen ions on one side of the membrane. By which type of transport are the hydrogen ions able to become more concentrated? A. Exocytosis B. Osmosis C. Facilitated diffusion D.

Is grasshopper separation of oxygenated/Deoxygenated blood yes or no

How would a houseplant respond to sunlight that comes from one direction? A. by curling its stem around its leaves B. by closing its leaves at night C. by growing roots downward through the soil D. by bending its stem toward the sun

Hershey and chase used a dna-based virus for their work. How might the results have been different if they had used an rna virus?

State the function of DNA

How are proteins involved in DNA replication?

Glucose is the primary fuel for cellular respiration. Which molecules can also be used by cellular respiration to generate atp?