What adaptation has allowed humans to increase their chances of survival and reproduction through gripping and using tools?
A. walking upright on two legs
B. physical strength
C. complex brain
D. opposable thumbs
E. five digits on each hand
Answer: D
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What make it difficult to represent the model of an atom?
A. Atoms are much larger than their nuclei. B. Atoms are not hard spheres with well-defined edges. C. Electrons are too small to be shown to scale. D. Electrons are constantly in motion and do not truly follow orbital paths. E. All of these choices are correct.
In the context of services, an "export" depends on the location of the sale
Indicate whether the statement is true or false
Middle-latitude deserts are caused primarily by ____
a. subtropical highs b. continentality and orographic barriers c. cold ocean currents d. polar highs
What is radiative forcing? List gases and aerosols that have positive or negative radiative forcing. What is the primary source of each?
What will be an ideal response?