Darwin's observations led to his proposal that evolution occurred due to ____

a. acquired characteristics
b. climatic changes
c. natural selection
d. migration
e. interaction of species


ANSWER: c

Biology & Microbiology

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When light is absorbed by rhodopsin, ____

a. discs from the outer segment of the rods and cones begin to grow b. discs from the outer segment begin to shed c. cis-retinal is converted to trans-retinal d. trans-retinal is converted to cis-retinal e. the inner segment of the rods and cones releases neurotransmitters

Biology & Microbiology

The force necessary to cause microtubules of cilia and flagella to slide alongside one another is

provided through the action of __________ proteins, which derive the energy to perform their work directly from __________ molecules. a. kinesin; ADP b. kinesin; glucose c. tubulin; ATP d. dynein; ATP e. dynein; ADP

Biology & Microbiology

If you were raising frying chickens, how much meat could you produce given a metric ton (1000 kg, or 2200 lb) of feed?

A) 200 kg B) 100 kg C) 800 kg D) 1000 kg

Biology & Microbiology

Compare and contrast the lytic and lysogenic cycles. Explain why a virus that follows the lytic cycle is often considered easier to manage.  

What will be an ideal response?

Biology & Microbiology