Staphylococci can be divided into pathogenic and relatively nonpathogenic strains based on whether or not they synthesize ________.
A. coagulase
B. a capsule
C. leukocidins
D. catalase
Answer: A
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The food vacuoles and phagocytic vacuoles are most similar to
A. chloroplasts. B. lysosomes. C. Golgi apparatus. D. mitochondria.
Which of the following describes the function of the coelom?
a. housing the circulatory system of triploblasts b. digesting and storing nutrients for diploblasts c. facilitating reproduction in all animals d. developing connective tissue in most animals
All New World monkeys are arboreal.
Answer the following statement true (T) or false (F)
In a grassland of Kansas, 1,000 grams of grass are produced per square meter per year by all the different grass species. A theoretical upper limit to the biomass of secondary consumers that can be supported in this ecosystem is
A) 1,000 grams. B) 100 grams. C) 10 grams. D) 0.1 gram. E) 1 gram.