The prebiotic soup hypothesis proposes that organic molecules formed from cracks in the ocean floor
______________ Indicate whether the statement is true or false.
False - iron-sulfur world, iron sulfur world
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New vaccine strategies resulting from progress in biochemistry and molecular biology include the production of
A) DNA vaccines. B) recombinant vector vaccines. C) synthetic peptide vaccines. D) DNA, recombinant vector, and synthetic peptide vaccines.
Liebig's Law of the Minimum states that:
A. there must be a minimum number of primary producers to support an ecosystem. B. primary production is usually determined by the abundance of just a single nutrient. C. primary production is limited by the nutrient that is least available for use by primary producers. D. primary production is limited by the nutrient that is in the greatest abundance for use by primary E. producers. F. primary production in all ecosystems is limited by the same nutrient.
Incisors and canine teeth are most commonly found in __________
a. carnivores b. herbivores c. filter feeders d. both carnivores and filter feeders
In the basic Lotka-Volterra equations that describe predator-prey interactions, the growth rate of the prey population (dNprey/dt) is zero when the density of predators (Nprey) is equal to
A) r/N. B) N/r. C) r/c. D) c/r.