A European robin detects directional differences in the earth's magnetic field through cryptochromes found in its _____.
A. forebrain
B. eyes
C. nose
D. ears
E. heart
Answer: B
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What is the function of the capsule of a bacterial cell?
A) it is used during cell division B) it allows the bacteria to be resist to antibiotics C) is it sued to transfer DNA from one cell to another D) it prevents phagocytosis
Why is the b0 = 0 at time period x0 for some species?
A) The birthrate always starts at 0. B) Some species do not reproduce during the first time period. C) All individuals are dead at x0. D) This is the case because m0 times 0 always = 0.
Which of the following is NOT a community?
A. a group of different species living in a pond B. a forest C. a population of rabbits D. a pine tree and the organisms that live on it
________ is a common name for green photosynthetic protists.
Fill in the blank(s) with the appropriate word(s).