Which of the following moves materials against a concentration gradient?
a. active transport
b. dialysis
c. facilitated diffusion
d. simple diffusion
e. osmosis
A
Biology & Microbiology
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The lumen of a transverse tubule is occupied by
A. extracellular fluid. B. cytoplasm. C. actin. D. myosin. E. sarcomeres.
Biology & Microbiology
The midsagittal plane is indicated by
a. A. b. B. c. C. d. D. e. E.
Biology & Microbiology
A study of the human ecological footprint conducted by the World Wildlife Fund in 2008 shows that ________
A) we have already exceeded the planet's biocapacity per person B) we are far below the planet's biocapacity per person C) Earth can sustain a population about double the current population D) the human population will soon crash
Biology & Microbiology
In humans, how many ova are produced from one primary oocyte?
A. 8 B. 2 C. 4 D. 1
Biology & Microbiology