Alders are trees with symbiotic nitrogen fixing bacteria in their roots. This enables alders to be a key part of ________ in recently glaciated areas in Alaska.

A. secondary succession
B. primary succession
C. inhibition
D. emigration
E. species extinction


Answer: B

Biology & Microbiology

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As you study two closely related predatory insect species, the two-spot and the three-spot avenger beetles, you notice that each species seeks prey at dawn in areas without the other species

However, where their ranges overlap, the two-spot avenger beetle hunts at night and the three-spot hunts in the morning. When you bring them into the laboratory and isolate the two different species, you discover that the offspring of both species are found to be nocturnal. You have discovered an example of _____. A) mutualism B) character displacement C) Batesian mimicry D) facultative commensalism E) resource partitioning

Biology & Microbiology

Plant cells often have a large membrane-bound sac that is used for storing water and other substances called a:  

A.  central vacuole. B.  Golgi body. C.  centriole. D.  chloroplast. E.  nucleus.

Biology & Microbiology

All the populations of different organisms that live in the same place form a(n) ____

a. ecosystem b. community c. biosphere d. organ e. population

Biology & Microbiology

The light and dark reactions of photosynthesis occur in different areas of the chloroplast

Indicate whether the statement is true or false

Biology & Microbiology