Mutualism is a relationship

A. that provides benefits for both members, sometimes to the point that one cannot live without the other.
B. where only one member derives benefit from the other.
C. where one member of the relationship may kill the other.
D. where one member of the relationship benefits without hurting the other.
E. where it is difficult to prove the benefits or disadvantages one member of the relationship may provide for the other.


Answer: A

Biology & Microbiology

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Your parents are both heterozygous for the recessive disorder phenylketonuria (PKU). What is the probability that you

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a. 25% b. 50% c. 75%

d. 100% e. 25% if your three siblings are healthy; 75% if your siblings also have the disorder

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The largest lymphatic duct, which runs along the anterior vertebral column, is the ______.

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