Which ion combines with calcium ions, Ca2+, to form the limestone skeleton of corals?

Coral reef ecology 2

Quiz
•
Science
•
11th - 12th Grade
•
Medium

Craig REID
Used 5+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
HCO3–
CO3 2–
SO42-
Cl–
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Coral polyps are animals which belong to the Phylum:-
Mollusca.
Arthropoda.
Cnidaria.
Crustacea
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The relationship between zooxanthellae and corals can be best described as
commensalism
mutualism
parasitism
predation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The graph below shows coral recruit densities on tiles for different substrates at a site. Error bars represent standard error.
Which substrate or substrates would be most suitable to make a new artificial reef?
Substrate 1
Substrate 2
Substrate 1 and Substrate 3
Substrate 2 and Substrate 4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which one of the following statements best describes the movement of matter and energy in an ecosystem?
Producers convert matter to energy, which then passes through the levels before being recycled.
Energy enters an ecosystem as light and is lost as heat, while matter is recycled.
Producers convert light energy to heat energy, which is then used to support the consumers
Consumers absorb heat energy from the environment and convert it to matter, which is then recycled.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which are two ways a population can decrease in size?
immigration and emigration
increased death rate and immigration
decreased birth rate and emigration
emigration and increased birth rate
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following issues is not associated with aquaculture?
biosecurity
waste removal
output pollution
overexploitation
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