a) heat fluctuation b) iver cruises c) stormsd) exposure ) Suspension feeders ar

Question

a) heat fluctuation b) iver cruises c) stormsd) exposure ) Suspension feeders are important in transferring energy from the water column to the a) pelagic zone b) benthos c) littoral zone d) all of the above What is the transitional zone between the aerobic and anacrobic zone called? a) half-way zone b) middle zone c) redox continuity layer d) redox discontinuity layer Smaller particles created by mechanical or biological breakdown are consumed by a) microalgae b) nekton c) turtles d) deposit feeders What group of marine organisms does not use seagrass as a direct source of food? a) Mammalia b) Reptilia c) Sarcopterygii d Echinoidea Plant colonization can occur via: a) vegetative spread, water-borne seeds, fragments b) water-borne seeds, particles, fragments c) water-borne seeds, paedomorphosis, particles d) vegetative spread, hermaphroditic sperm, fragments Mangrove swamps are found in-areas and saltmarshes are found in-areas a) hot/dry; cool/wet b) hot/wet; cool/dry c) cool/dry; hot/wet d) none of the above The principal environmental factor(s) causing damage to corals is/are: Coral reefs are often regarded as equivalent to tropical rain forests in terms of What is the limiting factor to vegetative production during winter at high latitudes? O b) El Nino c) tidal emersion and storms d) tidal immersion and storms e) upwelli a) competitive exclusionb) species richness c) planktonic dispersal d) trophic statu a) salinity b) lightc) dissolved oxygen d) nutrients Intertidal marshes that are open to the sea: a) tend to import materials landwards b) tend to export materials away from the coast c) have a balanced amount of imports and exports d) tend to maintain organic matter within the estuary What are epiphytes? a) snails that feed on plants c) plants that live on top of other organisms b) digestible plants d) nursery grounds

Explanation / Answer

b) Benthos

The suspension feeders transfer the suspended solids into the benthic systems.

d) Redox discontinuity layer

The transition layer between oxygen rich and oxygen poor areas is called as Redox discontinuity layer

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