The calcium carbonate (CaCO3) stones located on the maculae are called:

a. ampullae

b. stereocilia

c. ossicles

d. ottoliths

Which of the gastrointestinal cancers has the highest rate of incidence and is responsible for the highest number of deaths?

Insecticidal soaps are potassium salts of fatty acids that work on insects by breaking down the waterproofing covering on the insect's bodies causing them to dehydrate. a. True b. False

Select all the features of ocean basins that are directly created by the constant recycling of oceanic crust. A) trenches B) hot spots C) abyssal plains D) mid - ocean ridges E) hydrothermal vents F) continental shelves

What is the primary function of the carbon cycle? Recycling the supply of carbon on earth Creating macromolecules Recycling the supply of water on earth Creating fossil fuels

Which one of the following accurately describes the Lac operon? a. The repressor protein binds to the operator when lactose is present. b. The repressor is freed from the operator when lactose is present. c.

Each neuron shown in this figure innervates a group of muscle fibers. What is the term for a group of muscle fibers and the single neuron that innervates them?

Which of these characteristics is common only at the embryonic stage of fish and humans, and is suggestive of a common ancestor between the two? A) presence of lungs B) presence of a tail C) presence of gill slits D) presence of a vertebral column

The purpose of oxygen in the body is to serve as the

How do somatic and inherited mutations differ? A. Somatic mutations exist in all cells in the body and inherited mutations only exist in the cell type that mutated. B. Somatic mutations only affect males and inherited mutations affect any gender. C.

What are the two major organ systems in plants