Cnidaria and flatworms exchange gases and remove wastes by way of their:

A) open circulatory systems. B) closed circulatory systems. C) gastrovascular cavities. D) moist skin surfaces. E) respiratory and excretory systems.

Which is not a source of noise pollution

Why do sharks have gills?

U -12.5 Question 8 1 pts What equation matches this situation? Robyn had some video games then bought 4 more. Now she has a total of 10 games. O V - 4 = 10 O10-4 = v O V + 4 = 10 et Civen

Which of the following laws states that every object attracts every other object?

What is the jelly like material in both plant and animal cells?

What would you expect to happen if sea otters were removed from this food web? Check all that apply. The population of elephant seals would decrease. The population of kelp crabs would increase. The population of kelp would increase.

When blockages in the bloodstream read the Brian it can cause blank?

A gazelle is born with slightly longer legs which allow it to run faster than the other gazelles in the herd. This adaptation came may have come about because a. the gazelle needed to be able to run faster. b.

In a population of deer mice, the allele for white hair is recessive and the allele for brown hair is dominant.

What makes a molecule a saturated fat?