Unit 7 Tropical Communities and Symbiotic Relationships

What is the main difference between Hermatypic and Ahermatypic Coral?

• are colorful

• have symbiotic zooxanthellae

• have an exoskeleton

• made of limestone

What is NOT true of deep sea corals?

• perform photosynthesis

• are filter feeders

• do not form on reefs

• are common

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which chemical compound makes up coral reefs?

• Ca3(PO4)2 (calcium phosphate)

• SiO2 (silica/quartz)

• CaCO3 (calcium carbonate)

• Ca(HCO3)2 (calcium bicarbonate)

Tags

NGSS.MS-LS2-3

Which is NOT a limiting factor of coral reefs?

• temperature

• depth

• salinity

• wave strength

Tags

NGSS.MS-LS2-4

Which Cnidarian are coral polyps the most similar to?

• jellyfish

• soft sponges

• hard sponges

• squid

Tags

NGSS.MS-LS4-2

Which explanation best fits how coral reefs are made?

• Coral polyps settle and create a limestone base under them as they grow.

• Coral polyps settle on already formed reefs.

• Coral polyps take over sponge beds and make them into reefs.

True or False: Coral reefs only reproduce asexually.

• False

• True

Tags

NGSS.MS-LS3-2

75% of coral reproduction is most similar to which fish reproduction strategy?

(a)  

Which of the following is NOT a type of coral reef?

• atolls

• barrier reef

• fringing reef

• fjords

How much of carbon dioxide does the ocean absorb? (fraction)

(a)