What animals are considered to be sessile?
a. Sponges
b. Mussels
c. Barnacles
d. Corals
a
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Microtubules have an inner diameter of ________ and an outer diameter of ________.
A) 15 mm; 25 mm B) 8 nm; 12 nm C) 25 nm; 30 nm D) 15 nm; 25 nm E) 7 mm; 14 mm
Fungi that live inside plant leaves and provide protection from insects are
A) mycorrhizae. B) photosynthetic. C) saprophytes. D) endophytes. E) lichens.
Which statement regarding logistic growth is true?
A) The parameter (K ? N)/K is always equal to zero. B) There has to be more than one limiting factor in place for logistic growth to occur. C) Population growth is highest when the population is much larger than the carrying capacity. D) Population growth is zero when (K ? N)/K is equal to zero.
Which of the following antibiotics causes misreading of mRNA?
A) aminoglycoside — changes shape of 30S units B) chloramphenicol — inhibits peptide bonds at 50S subunit C) oxazolidinone — prevents formation of 70S ribosome D) streptogamin — prevents release of peptide from 70S ribosome E) tetracyclines — bind with 30S subunit