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Environment › Marine Ecosystem
Consider the following kinds of organisms: 1. Copepods 2. Cyanobacteria 3. Diatoms 4. Foraminifera Which of the above are primary producers in the food chains of oceans?
(a)
1 and 2
(b)
2 and 3
(c)
3 and 4
(d)
1 and 4
(B)
What is blue carbon?
Carbon captured by oceans and coastal ecosystems
Carton sequestered in forest biomass and agricultural soils
Carbon contained in petroleum and natural gas
Carbon present in atmosphere
(A)
Which one of the following is a filter feeder?
Catfish
Octopus
Oyster
Pelican
(C)