Which of the following contribute to atmospheric CO2 levels? (Check all that apply.)
A. Chemoautotrophy
B. Respiration
C. Photosynthesis
D. Deforestation
E. Burning fossil fuel
Answer: E
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Limbs like arms, legs, and the fins of whales are part of the:
A. axial skeleton. B. appendicular skeleton. C. mobile skeleton. D. central skeleton.
If a living plant cell is placed in a beaker with pure water, it will take up water until ____
a. within the cell ?P = ??S b. it bursts c. its ?P = 0 d. its ?S = ?S of the pure water e. its ?S = 0
The kidneys are protected by ____ tissue
a. adipose b. loose irregular connective c. dense regular connective d. stratified cuboidal epithelium e. simple squamous epithelium
Why was ?-carotene inserted into GM golden rice?
A) to better synthesize proteins in the body B) to see better under low light conditions C) to more efficiently digest his or her starchy diet D) to better synthesize vitamin A in the body