Spermatogenesis takes place in the epididymis. Indicate whether the statement is true or false
False - testes
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Why do the Galápagos Islands and the Hawaiian Islands have so many endemic species of flies and birds? Check all that apply.
_____ There are numerous islands in each archipelago. _____ There is adequate distance between islands to allow divergence. _____ The founder effect was common when islands were colonized. _____ Each bird or fly species has many common ancestors.
In Paine’s study, the starfish are the top predators in this system and eat each of the other
species mentioned. Whelks eat both mussels and barnacles, while both mussels and barnacles are filter feeders that feed on small particles in the water, including algae and other autotrophs. In terms of the number of organisms, you would expect __________ to have the highest number of individuals
a. mussels b. whelks c. starfish d. both whelks and starfish
When all the precipitation in a small valley feeds a particular stream, the valley is referred to as ____
a. a basin b. a waterway c. an ecosystem d. an aquifer e. a watershed
Which substance is cycled between organic matter and abiotic reservoirs?
A) fat B) carbon C) protein D) nucleic acid