A chronometer is used for:
a. measuring depth.
b. measuring speed.
c. measuring time.
d. measuring latitude.
e. measuring longitude.
C
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The innermost layer of the root cortex, which is a selectively permeable barrier that helps control the
movement of water and dissolved minerals, is called the
a. endodermis. b. root cap. c. quiescent center. d. pericycle. e. root hairs.
Knowing the atomic mass of an element allows inferences about which of the following?
A) the number of electrons in the element B) the number of protons in the element C) the number of protons plus neutrons in the element D) the number of protons plus electrons in the element
Which of the following is thought to be most closely related to the anthropoids?
a. lemurs b. galagos c. lorises d. tarsiers e. marsupials
The major cause of the loss in Earth's biodiversity is
a. agricultural runoff. b. habitat loss. c. overfishing and water pollution. d. pollution. e. fossil fuel usage.