Interactions that keep the conditions in the body's internal environment within tolerable limits are collectively referred to as ________
a. metabolism
b. homeostasis
c. physiology
d. development
b
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___________________ are organisms that derive energy from sunlight
A. Phototrophs B. Autotrophs C. Heterotrophs D. Chemotrophs E. Lithotrophs
Four of the following organisms belong in the clade of class Reptilia. Which one does not?
a. turtle b. fish c. birds d. lizards e. snakes
Differences in domesticated animals over relatively short periods of time most likely occur through:
A. natural selection B. adaptation C. artificial selection D. experimental selection E. evolution
In her biology class, Natasha has been asked to complete a strand of DNA with the appropriate nucleotides. If half of the strand is A-T-C-C-G-A-T-C, what would she write for the other half?
A) T-A-G-C-C-T-A-C B) T-U-G-G-C-T-U-G C) T-U-G-C-G-U-A-G D) T-A-G-G-C-T-A-G