Diatoms are a type of algae, but with a hard silica shell. Which of the following structures would you expect to find directly underneath the silica shell?

A. a chloroplast

B. a mitochondrion

C. a nucleus

D. a cell wall

E. a plasma membrane


E. a plasma membrane

Biology & Microbiology

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At term, ____________________ changes initiate and drive the events surrounding birth

Fill in the blank(s) with correct word

Biology & Microbiology

Spiders and scorpions belong to the phylum containing the

A. annelids. B. cnidarians. C. arthropods. D. echinderms. E. mollusks.

Biology & Microbiology

Which of the following is one of the cardinal signs of inflammation?

What will be an ideal response?

Biology & Microbiology

For a cell to take up sugar from the bloodstream,

a. sugars must bind to receptors on cells of the pancreas. b. a person must have had a meal with sugar within the last twenty-four hours. c. homeostatic mechanisms must activate the blood-brain barrier. d. glycogen must be broken down to provide a supply of glucose. e. the pancreas must supply the appropriate enzymes to make sugar available.

Biology & Microbiology