The ____ produce(s) ____, which influences biological rhythms and the onset of sleep
a. pituitary gland; thyroid stimulating hormone
b. pituitary gland; adrenocorticotropic hormone
c. pineal gland; melatonin
d. adrenal cortex; cortisol
e. parathyroid glands; parathyroid hormone
c
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Ultimately, the health of life on Earth depends on our ability to live within our limits. The goal is to live ____
a. extravagantly b. carelessly c. frugally d. fearfully e. sustainably
Essentially, the first law of thermodynamics says
that a. one form of energy cannot be converted into another. b. entropy is increasing in the universe. c. energy can be neither created nor destroyed. d. energy cannot be converted into matter or matter into energy. e. all of these are true.
________ are the detrital-feeding organisms responsible for the conspicuous coiled and cone-shaped casts found on sandy beaches
A) Gastropod mollusks B) Lugworms C) Nematodes D) Polychaete worms
If you wished to obtain the strongest phototropic response from a shoot, which wavelength of light
would you use? a. less than 500 nm b. 660 nm c. 730 nm d. 800 nm e. more than 800 nm