Molecules that have both hydrophilic and hydrophobic components are referred to as ____
Fill in the blank with the appropriate word.
Answer Key: amphipathic
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The building blocks of DNA are called _________
A. amino acids B. codons C. nucleotides D. alleles
Despite great diversity, all vertebrates share which basic homeostatic mechanism(s)?
a. digestion only b. metabolism only c. respiration only d. digestion and metabolism e. digestion, metabolism and respiration
What is the correct order of events that occur during muscle contraction?
1) muscle shortens 2) calcium binds to troponin 3) filaments slide 4) T tubules are depolarized 5) acetylcholine is released 6) ATP molecule is split a. 4 ? 5 ? 2 ? 1 ? 3 ? 6 b. 4 ? 2 ? 5 ? 6 ? 1 ? 3 c. 5 ? 2 ? 4 ? 1 ? 6 ? 3 d. 6 ? 2 ? 5 ? 4 ? 3 ? 1 e. 5 ? 4 ? 2 ? 6 ? 3 ? 1
Action potentials normally travel along an axon
A) toward the cell body. B) away from the cell body. C) either toward or away from the cell body.