The association of nitrogen fixing bacteria of the genus Rhizobium with legumes such as peas is an example of
mutualism. Indicate whether the statement is true or false.
True
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he nervous system of many species of flatworms:A
consists of a single, large ganglion in the anterior end. B. is sometimes referred to as tubelike. C. includes two dorsal nerve cords. D. is diffuse and netlike. E. is a “ladder-type.”
Muscle contraction accounts for over 75% of the heat generated by the body
Indicate whether the statement is true or false
Osmoregulatory adjustment via the renin-angiotensin-aldosterone system can be triggered by _____
A) sleeping for one hour B) severe sweating on a hot day C) eating a pizza with olives and pepperoni D) drinking several glasses of water
Assume that four polygenic gene pairs are involved in determining phenotypes of F2. How many phenotypic classes are expected?
A) 8 B) 9 C) 16 D) 4