A species that plays a critical role in maintaining the structure of an ecological community and helps to determine the types and numbers of various other species in the community is known as
A. a predator.
B. a keystone species.
C. the primary species.
D. the dominant species.
E. the alpha species.
B. a keystone species.
You might also like to view...
One hypothesis proposes that an asteroid impact at the end of the ___________ led to the extinction of dinosaurs. Fill in the blank(s) with the appropriate word(s)
When hydrogen ions are pumped from the mitochondrial matrix across the inner membrane and into the intermembrane space, the result is the _____
A) formation of ATP B) reduction of NAD+ C) creation of a proton-motive force D) lowering of pH in the mitochondrial matrix
Which of the following has bacteriochlorophylls and uses alcohols for carbon?
A) chemoautotroph B) chemoheterotroph C) photoautotroph D) photoheterotroph
Which of the following is an example of codominance?
A) in roan cattle, you can see a mix or both red and white furs B) there are many possible mutations that lead to white eyes in flies C) flowers of a certain plant can come in purple, blue, or yellow D) a scorpion's venom is more potent when it's younger E) a certain plant can have jagged, rough, or smooth edges on its leaves