What was the work of Rudolf Virchow trying to prove?

A. All cells came from preexisting cells.

B. Bacteria were unicellular organisms.

C. The theory of spontaneous generation could be supported.

D. Plants had different cells than animals.

Suzie was sewing when she accidently punctured her finger with the needle. Several days later, it is filled with pus. Which statement provides an explanation of how the WBCs were able to populate that wound? A.

What is the name of the fluid-filled bag of thin tissue that develops around the embryo soon after implantation?

How do two stands on the same chromosomes?

Which is a disadvantage of using genetic engineering

What do you think is the appropriate NaCl concentration for IV fluid? Why?

Which of the following is not a factor in determining if an animal should be placed on the endangered species list? the animal's fur is valuable to humans. the animal's habitat is threatened. the animal is predated on significantly by other animals.

In Costa Rica one can find the Arenal Volcano surrounded by the Cloud Forest, a rainforest, and multitudes of life forms. This area demonstrates the interaction of which of the following "spheres"? Check all that apply. A. biosphere B. exosphere C.

The process of chemical cycling is known as a biogeochemical cycle because it a. takes places over a long period of time b. withdraws the chemical form the atmosphere as a gas c. absorbs the chemical involved from the sediment d.

What step first happens in DNA replication?

Why was Charles Darwin considered to be a revolutionary?