In summer, a __________ prevents upper and lower
waters from mixing. Fill in the blank(s) with the appropriate word(s).
Answer: thermocline
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Four of the five processes below are agents of microevolutionary change. Select the exception
a. mutation b. genetic drift c. natural selection d. random mating e. gene flow
The coronary arteries supply blood to cardiac tissue. Which chamber of the heart requires the greatest amount of blood supply to keep it working?
A) right ventricle B) left ventricle C) left atrium D) right atrium
Which reproductive process will result in genetically unique individuals?
A) budding B) sexual reproduction C) vegetative reproduction D) binary fission
The fluid that covers the brain and spinal cord is ____.
A. part of the meninges B. part of a rapid type of nerve conduction C. involved in reflex actions D. involved in the "jumping" of impulses E. called cerebrospinal fluid