Which of the following terms correctly describes carnivores?
A) Primary consumers
B) Detritus consumers
C) Autotrophs
D) Consumer producers
E) Secondary consumers
E
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Which of the following is least important for the binding of a protein to single-stranded DNA?
A. hydrophobic interactions between guanine and tyrosine B. hydrophobic interactions between adenine and phenylalanine C. attraction between phosphate groups and lysine D. attraction between phosphate groups and arginine E. hydrogen bonding between deoxyribose and tyrosine
With cladistic analyses, characters of an organism exist in ____ form(s), referred to as ____
a. one; a character state b. two; character states c. two; variable traits d. many; polymorphic states e. many; variable traits
Alfred Wallace is best known for authoring an essay in which he proposed that ________
a. fossils found in deeper strata are older than those in more shallow layers b. continental plates drift slowly across the surface of the planet c. organisms change over time through evolution by natural selection d. DNA base sequences encode the amino acid sequences of proteins
Detergents are best able to dissolve oil from fabric or dishes during washing because
A) the positively charged end is associated with water molecules, while the negatively charged end interacts with the oil droplet. B) the negatively charged end is associated with water molecules, while the positively charged end interacts with the oil droplet. C) the nonpolar end is associated with water molecules, while the charged end interacts with the oil droplet. D) the charged end is associated with water molecules, while the nonpolar end interacts with the oil droplet. E) detergents are nonpolar, they increase the size of the oil droplet, allowing the water to be more effective at removing the oil.