What part of the lower respiratory tract is made up of tiny air sacs where oxygen and carbon dioxide are exchanged?

a. Bronchioles

b. Larynx

c. Alveoli

d. Trachea

Which two statements are true for the leading strand in DNA 1. It is synthesized toward the replication fork 2. It is synthesized in the 3' to 5' direction 3. It is synthesized away from the replication fork 4.

What are the levels of organization in multicellular organisms

What is most common white blood cell? A. lymphocyte B. neutrophil C. basophil D. monocyte

Mary came home from school and looked in the fridge for a snack. She loves celery, but it was all wilted. She places the celery into a tall glass filled with water and left it for a little while, Why did she do this?

What glad is referred to as master gland

Balthazar's depression is being treated through a procedure in which electrodes are placed on both sides of his head and a brief current is turned on. the current triggers a seizure that lasts about a minute, causing his body to convulse.

What is relay neuron?

How long did it take for rattlesnakes to adapt without a rattle?

What parts of cells use up most of the oxygen? a, membranes, b. mitochondria, c. nuclei

What is the basis for the shape of the food Guide pyramid?