The high heat of vaporization of water helps you to feel cooler when you sweat because the transition of water from a liquid to a gas requires a ______ of energy to break hydrogen bonds. The energy is _____ from heat produced by your body, thus helping to lower the surface temperature of your body
A. release; released
B. release; obtained
C. input; obtained
D. input; released
C
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Which type of defense mechanism is not classified as the first line of defense?
a. Chemical barriers b. Skin c. Mechanical barriers d. Physical barriers e. Leukocytes
Which is an example of a clumped distribution of a population?
A. A tree species releases a poison to defend the soil around its roots, resulting in trees spaced evenly like a grid. B. Antelope travel in herds. C. Two male hummingbirds have a confrontation on the border between their territories. D. Multiple species join each other at the waterhole to drink.
If you see a red leaf, what color(s) of light in the visible light spectrum is/are being reflected?
A) all colors B) all colors except red C) no colors D) red
Briefly explain the process of natural selection
What will be an ideal response?