Of the following animals, which ones use carbohydrates and proteins for energetic purposes and which ones use them for structural purposes? Phytoplankton, zooplankton, mollusks, crustaceans, fish.

An organism was hunted almost to extinction, but the population bounced back. Which evolutionary change did this species most likely experience? A. bottleneck effect B. migration C. mutation D. sexual reproduction E. disruptive selection

The mitochondrial DNA sequences of a large extended family were analyzed and compared to a single male in the family. Which of the relatives' mitochondrial DNA should be a match to this person?

Many viruses released into the air survive for only short periods of time. Which of the following is the most likely reason for this? A. Viruses attract antibodies in the atmosphere. B. Viruses require a low atmospheric pressure. C.

Genetic continuity is maintained through asexual reproduction because A. crossing over occurs during asexual reproduction. B. multiple offspring are always produced all at once during asexual reproduction. C.

Eating a banana causesenergy to change forms, a. and used energy is destroyed. b. and new energy is formed. c. but the total amount of energy does not change.

From what is a nebula made? stars planets asteroids dust and gas

Which phrase if placed in box X would correctly complete the flowchart shown below?

Question 14 of 20 A mutation in human ATPase 6, which corresponds to E. coli subunit a, from leucine to arginine at position 156 may allow the movement of protons across the membrane, but not the rotation of the ring of c subunits.

Once DNA is cloned, we have the problem of finding the piece of DNA that holds our gene of interest. Explain how nucleic acid hybridization will accomplish this task.

Bile salts are synthesized from cholesterol and are used for the emulsification of dietary lipids. What is the primary fate of bile salts during digestion?