Refer to the accompanying figure. What is the function of the structure labeled as 3?

a. replication
b. locomotion
c. mate recognition
d. attachment to a host cell
e. to take over host cell mechanisms


d

Biology & Microbiology

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What is the ratio of the energy content of food consumed to the energy content of food available?

a. ecological efficiency b. harvesting efficiency c. production efficiency d. assimilation efficiency e. net primary productivity

Biology & Microbiology

According to the below figure, which letter corresponds to the area where water is absolutely not reabsorbed?  



A.  A
B.  B
C.  C
D.  D
E.  E

Biology & Microbiology

If you could stick a microscopic pin into the

center of a bacterium, what would the order of the structures you would encounter from the outside in?

a. capsule, cell wall, plasma membrane, cytoplasm b. cell wall, capsule, plasma membrane, cytoplasm c. plasma membrane, cell wall, capsule, cytoplasm d. cell wall, plasma membrane, capsule, cytoplasm e. capsule, plasma membrane, cell wall, cytoplasm

Biology & Microbiology

A bond that joins atoms that have opposite charges is a(n)

a. covalent bond. b. hydrogen bond. c. ionic bond. d. coordinate covalent bond. e. polar covalent bond.

Biology & Microbiology