Which organ is essential in circulating oxygen throughout the body?

a. liver

b. heart

c. lung

d. kidney

If an ecologist knows the types of plants in an area, he can make a good guess as to the type of biome and the type of fauna that live there. True or False.

Gina is driving her car down the street. She has a teddy bear sitting on the back seat. A dog runs in front of Gina's car, so she quickly applies the brakes.

Which component of a synovial joint absorbs shock and reduces friction? A. articular cartilage B. joint capsule C. synovial membrane D. synovial fluid

A blastocyst is a A. cluster of cells surrounding a developing egg in the uterus. B. membrane that surrounds and protects a growing embryo in the uterus. C. growth that can form in the wall of the fallopian tubes. D.

Describe the components that make up the cell membrane, and explain why it is called the fluid mosaic model.

Use the following terms in the same sentence:gene and allele

Is cystic fibrosis an example of sex linked disorder

A term used to describe the workload placed on the body in general is

What are the pros and cons of genetically modified foods

What is the other product of photosynthesis? A Water B Glucose C Carbon Dioxide D light energy