Which of these describes the benefits involved in
the symbiotic association between algae and corals on a reef?
a. Algae receive key organic nutrients from coral metabolism.
b. Algae pass photosynthetically produced organic compounds to the corals.
c. Algae–coral mutualism allows corals to develop in large expanses on nutrient-poor ocean water.
d. all of the above
Answer: D
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What salt-tolerant woody plants have prop roots that help the plant stay upright in soft sediments?
a. wetlands b. tide pools c. cordgrass d. mangroves
e. tidal flatsRacial differences in skin color are due to different people having different numbers of melanocytes.
a. true b. false
Two organelles that are believed to have once been free-living bacterial cells are ________ and ________.
A. peroxisomes; lysosomes B. Golgi complex; endoplasmic reticulum C. ribosomes; nucleolus D. chloroplasts; mitochondria
Mycorrhizae surround and infiltrate the ________ of vascular plants
A) roots B) leaves C) seeds D) flowers E) stems