Kelp is a type of algae in a complex ecosystem off the Pacific coast of North America. If kelp forests shrunk in size or vanished, many other species would be affected. Kelp are ____ species in this ecosystem.
a) excluded
b) keystone
c) competitive
d) predator
Ans: b) keystone
Biology & Microbiology
You might also like to view...
Which pertains to DNA but not to RNA?
A. Contains adenine B. Contains uracil C. Contains nucleotides D. Contains thymine E. Contains ribose
Biology & Microbiology
Which of the following can be used as a cloning vector in molecular biology?
A) a plasmid B) DNA of a bacteriophage C) an artificial chromosome D) a Y chromosome E) a plasmid, DNA of a bacteriophage, or an artificial chromosome
Biology & Microbiology
Xylem sap mainly contains
(A) water and amino acids (B) water and sugar (C) sugar and minerals (D) water and minerals
Biology & Microbiology
What oxidizing agent can be used to disinfect wounds as well as nonliving surfaces
What will be an ideal response?
Biology & Microbiology