Homosexuality
A) is seen only in humans.
B) reflects the input of a number of genes and environmental factors.
C) is inherited from a mutation on the X chromosome.
D) is only the result of environmental influences.
B) reflects the input of a number of genes and environmental factors.
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Which of the following are protein foods that are complete?
a. hamburger b. beans c. corn d. rice e. more than one of these protein foods are complete
Binding of a protein hormone may lead to formation
of a __________, which relays a signal into the cell. Fill in the blank(s) with the appropriate word(s).
Which statement best describes the now-discredited theories of Lamarck?
A) All life was created in the form we see today. B) Modern life forms are the descendants of past individuals who were the most fit. C) Organisms acquire traits during their lifetime and pass those traits on to their offspring. D) Earth is extremely old and has undergone many changes.
Which of the following includes lymphocytes?
A) White blood cells B) Platelets C) Albumin D) Red blood cells