What is the main structural component of plants?

a. glucose
b. glycogen
c. chitin
d. cellulose
e. starch


d

Biology & Microbiology

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What invention eventually led to current deep sea submersibles like Alvin?

a. Bathyscaphe b. Search-and-recovery vessels c. Diving bell d. Bathysphere

Biology & Microbiology

Scurvy is caused by a lack of which nutrient?

A) Calcium B) Vitamin D C) Vitamin C D) Omega-3 fatty acid

Biology & Microbiology

The first line of defense against invading microorganisms is nonspecific.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following diseases may be reduced by improved public sanitation measures?

A) malaria B) HIV C) cholera D) chickenpox E) rabies

Biology & Microbiology