respiratory system

The right ventricle pumps blood to the lungs in the systemic loop

• true

• false

Blood flows away from heart in __

• veins

• arteries

• capillaries

What structure stops the back flow of blood in veins

• cholesterol

• fatty acids

• antigens

• valves

If blood flow started in the right atrium; what is the last heart valve the blood would flow through?

• tricuspid

• bicuspid

• pulmonary semilunar valve

• aortic semilunar valve

If an F1 generation (first offspring) has a phenotypic expression of "O", what do you know about the parents (P1)?

• Both parents are dominant homozygous

• Both parents are dominant heterozygous

• both parents are codominant

If the parent generation produced an offspring that was AB and the parent generation were purebreds what are the mom and dad's genotypes and what percent would the offspring generation of AB consist of?

• mom: AA, dad: AA, 50%

• mom: AA, dad: BB, 50%

• mom: AA, dad: BB, 100%

• mom: Ai, dad: Bi, 100%

• mom: Bi, dad: Bi, 100%

The largest lymphatic organ

• spleen

• lymph nodes

• thymus

• tonsils

filter lymph

• spleen

• lymph nodes

• Peyer's Patches

• tonsils

particularly large and important during youth; produces hormones that help to program the immune system

• thymus

• spleen

• lymph nodes

• tonsils

collectively called MALT

• spleen

• tonsils

• lymph nodes

• thymus