How many times more acidic is a solution with a pH of 3 than a solution with a pH of 6?
A. 10
B. 1000
C. 36
D. 63
E. 3
Answer: B
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Which of the following is NOT a documented biological result of global warming?
a. Warm-adapted marine species are becoming more common and cold-adapted species less common. b. Plants display earlier flowering and growth. c. Alpine butterflies are shifting their distribution 6.1 meters higher in altitude per decade. d. Animals display earlier migration and breeding. e. Massive animal extinction.
During IVF, where does conception occur?
A. in the fimbriae B. in the oviducts C. in the vagina D. in the uterus E. in the laboratory
What form of coloration is shown by many seahorses?
A. Batesian B. aposematic C. Müllerian D. camouflage
Flatworms ________.
a) are segmented worms like earthworms and leeches b) have radical symmetry c) are the simplest animals with organs and organ systems d) have an exoskeleton and paired jointed appendages