An Emperor Penguin is diving and as it increases its depth, which of the

following decreases due to the lack of sunlight?

O

cold water

O pH

salinity

biodiversity

How are cells alike and different than bricks in a brick wall?

Does autotrophs or heterotrophs use photosynthesis

A blastocyst is a A. cluster of cells surrounding a developing egg in the uterus. B. membrane that surrounds and protects a growing embryo in the uterus. C. growth that can form in the wall of the fallopian tubes. D.

During an operation, a veterinarian needs to make a cut in the skin along the ventral surface of the abdomen, moving in the caudal direction. The veterinarian will make the cut toward the A. head. B. tail. C. spine. D. limbs.

What is the biggest difference between an ecosystem and a community? a. A community includes only one type of organism and an ecosystem includes many types. b.

A protein is in its native conformation when a. it is thermodynamically least stable b. it has the highest gibbs free energy c. it is in any of its functional, folded states d. it is unfolded e. none of the above

If a single female immigrant brings a trait to a small, sparsely populated island and within many generations it is present in 50% of the population, it would be an example of

3. How big is the Clark Refractor in Arizona?

Radioactive uranium-235 has a half-life of 704 million years. If it was incorporated into dinosaur bones, could it be used to date the dinosaur fossils?

hurricanes can damage or destroy barrier islands. suppose a barrier island that separates an estuary from the ocean was damaged by a storm: how would this affect the estuary