Explain the structure and functions of the arteries
What will be an ideal response?
Arteries are blood vessels that move blood away from the heart; they usually carry oxygenated blood. Pulmonary arteries are an exception to this pattern; they carry deoxygenated blood. The arteries have thick walls made up of an outer connective tissue layer, a middle layer of elastic fibers and smooth muscle, and an inner layer of endothelium.
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In the figure above, which label identifies the structure where the vibrations of the oval window pass?
a. 1 b. 2 c. 3 d. 5 e. 7
All of the following are true EXCEPT one. Choose the exception
A) The great diversification of animals occurred during the Cambrian explosion. B) For most of biological history, life was confined to aquatic habitats. C) The evolution of multicellularity took place after the origin of the eukaryotes. D) The first organisms to colonize land were animals.
Mendel's laws are based on the behavior of chromosomes during prophase.
a. true b. false
The microorganisms Antoni van Leeuwenhoek called "animalcules" we would recognize as
A. bacteria. B. algae. C. protozoa. D. fungus. E. both bacteria and protozoa.