Match the structure of the amniotic egg with the correct description.

1. Allantois
2. Yolk sac
3. Chorion
4. Amnion

a. Protection of the embryo
b. Gas exchange
c. Compartmentalizes wastes
d. Contains nutrients


1. c. Compartmentalizes wastes
2. d. Contains nutrients
3. b. Gas exchange
4. a. Protection of the embryo

Biology & Microbiology

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After eating a meal, food particles are broken down into simple sugars, which enter the

bloodstream. An increase in blood sugar levels leads to the release of insulin from the pancreas, and insulin in turn stimulates cells to take up glucose so that blood sugar levels decrease. This is an example of __________.

a. negative feedback b. positive feedback c. homeostasis d. both negative feedback and homeostasis

Biology & Microbiology

The figure shown above is of what kind of

tissue? a. blood b. adipose c. bone d. cartilage e. dense connective

Biology & Microbiology

What type of immunity is produced by the body when a person contracts a disease?

A) innate immunity B) naturally acquired passive immunity C) artificially acquired active immunity D) artificially acquired passive immunity E) naturally acquired active immunity

Biology & Microbiology

Aseptate fungi are classified as

A) Basidiomycota. B) Deuteromycetes. C) Zygomycota. D) Ascomycota. E) Rhodophyta.

Biology & Microbiology