Keystone species are:
A) might be of any number, anywhere on the food chain.
B) always at the top of the food chain.
C) always the most numerous.
D) never at the top of the food chain.
Answer: A
You might also like to view...
A beer-making microbiologist noticed that no matter how long the brewing process went, 3% alcohol was the maximum produced
Hypothesize what is causing this low level of alcohol in reference to the brewer's recipe and recommend how a higher alcohol yield could be achieved. Ethanol is toxic at high concentrations, but ignore this factor to focus on microbial metabolism. What will be an ideal response?
The pituitary gland is controlled by the
a. pons. b. corpus callosum. c. medulla. d. thalamus. e. hypothalamus.
The current hypothesis about fungal evolution suggests that Microsporidia are most distantly related to Neocallimastigomycota.
Answer the following statement true (T) or false (F)
Proteins are long chains or polymers made up of
A. nucleotides B. carbohydrates C. amino acids D. lipids