Corals in a tropical reef provide protection from ocean waves and currents to the other species that live there and have the greatest influence on the reef community. The corals are a(n) ______ species.

a. invasive
b. foundation
c. pioneer
d. keystone


b. foundation

The corals are a foundation species. Corals in a tropical reef provide protection from ocean waves and currents to the other species that live there and have the greatest influence on the reef community.

Biology & Microbiology

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During which period did the coal forests form?

a. Cambrian b. Carboniferous c. Quaternary d. Jurassic e. Ordovician

Biology & Microbiology

If you were designing a new insecticide absorbed via the respiratory system in arthropods, the killing chemical would enter the invertebrate through the

A. epidermis. B. tracheae. C. alveoli. D. bronchioles. E. gills.

Biology & Microbiology

The semen from a man who has had a vasectomy would include each of the following except ________

A) secretions from the prostate gland B) secretions from the seminal vesicles C) sperm D) secretions from the bulbourethral glands

Biology & Microbiology

Membrane-bound vesicle that contains hydrolytic enzymes for digesting macromolecules and bacteria; used to recycle worn-out cellular organelles.

What will be an ideal response?

Biology & Microbiology