Archaeopteryx fossils show that the animal had feathers like a bird. It also had a bony tail, teeth, and claws on its wings like a reptile. Scientists claim this is evidence of a common ancestor. What makes this a sound claim?

Collagena. is a protein. b. is important in dense connective tissues forming tendons due to its tensile strength. c. is particularly abundant in muscle cells where it provides elasticity d. a and b only e. all of these

Agars can be used to select for growth of certain types of bacteria and then allow for you to identify the different bacteria that can grow on the plate. These agars may be considered both selective and differential.

In flies, red eyes (R) are dominant to brown eyes (r). A heterozygous fly is crossed with a homozygous recessive fly

Cinder cones are usually found at the edges of larger volcanoes. true false

Helen Fisher suggests that "through evolution humans have developed a set of neurochemicals that drive an 'evolutionary trajectory of loving'." Which of the following is a neurochemical that she sees as important in human sexuality?1. lactose2.

Explain why a cell needs to break down atp

Was the cutlass a pony car or muscle car

What type of selection favors the average individuals in a population

Which of the following ideal criteria for elimination of a disease is addressed by the following statement: Hepatitis B may establish a chronic infection that can lead to transmission of the disease even in the absence of symptoms? A.

3. Which of the following direct quotations is punctuated properly? A. "Way to go, Sean," the coach shouted. "That was a great run"! B. "Way to go, Sean", the coach shouted. "That was a great run!" C. "Way to go, Sean," the coach shouted.