Fish are classified as vertebrates because they have

a. a brain.

b. a backbone.

c. two germ layers.

d. bilateral symmetry.

Which taxon includes only organisms that can successfully interbreed and produce fertile offspring?

How did increased tobacco cultivation in Jamestown affect relations between the colonists and Native Americans?

When does a 600-calorie meal exceed the number of calories burned in two hours? when a 200 lb person plays basketball when a 160 lb person does aerobics when a 200 lb person walks at 3.5 miles per hour when a 160 lb person plays volleyball

Protein folding is determined by 1. None of these 2. All of these 3. how amino acids interact with water. 4. the sequence of the amino acids. 5. how amino acids interact with each other

Is a hummingbird a consumer?

The cell walls of fungi differ from those of plants and protists because the cell walls of fungi O A. are composed of cellulose. O B. are composed of peptidoglycan. C. are composed of chitin. D. contain chlorophyll.

In module 1 you identify which species of lizards were most similar to one another based on

Are surface currents that flow towards the poles generally warm or cold?

Which is the correct order of the processes responsible for the formation of sedimentary rocks? erosion, deposition, compaction weathering, cementation, deposition cementation, compaction, erosion?

Urine exits through what external opening on both male and female rats