Marine Ecology Intro

Which abiotic factor do organisms in the Antarctic ocean need to be adapted to

• Low oxygen levels

• Extremely low temperatures

• High rates of interspecific competition

• Low population sizes

Which is the primary producer in most marine ecosystems

• Plants

• Krill

• Phytoplankton

• Coral

Which is not part of the Antarctic Ocean food web

• Krill

• Otters

• Seals

• Penguins

The number of different species in a community

• Population

• Biodiversity

• Food web

• Habitat

What major human impact is effecting the Antarctic Ocean?

• Climate changes

• Over fishing

• Human land use

• Pollution

Which is true of the West Indian Ocean ecosystem

• the biodiversity is high

• humans are NOT impacting the ecosystem

• there are few species

• There is little competition for resources

Which is true about the niche of the 4 different types of turtles that lives in the West Indian Ocean?

• They overlap directly

• They do not overlap at all

• The overlap slightly

• They are all the same species so they have the same niche

What abiotic factor influences the types of organisms that live in the West Indian Ocean?

• Extreme cold

• over fishing

• Warm shallow waters with plentiful sun light

• Deep cold water with little nutrients

Which is an autotroph in the Monterey bay ecosystem

• Otters

• Kelp

• Sea stars

• Coral

Which abiotic factor influences the types of organisms that live in Monterey bay

• Rocky shores and fierce waves

• Plentiful food

• Competition

• Predators