Chapter 12 Marine Science

in a food web arrows point in what direction?

• from producer to consumer

• from predator to prey

• from prey to predator

• from autotrophs to heterotrophs

the clown fish lives within the tentacles of a stinging anemone. The clown fish benefits because predators get stung when getting too close, so it gets protection. The anemone will then get food scraps left behind from the clownfish. What type of symbiosis is this?

• mutualism

• parasitism

• commensalism

• interspecific competition

consumer is to heterotroph as producer is to...

• autotroph

• primary consumer

• predator

• none of the options

True or False: Food Webs are just multiple food chains showing all the possible interactions within an ecosystem.

• True

• False

The organisms that eats the producer is called what?

• carnivore

• primary producer

• primary consumer

• autotroph

What percentage of energy is LOST at each trophic level?

• 15%

• 10%

• 90%

• 25%

interspecific involves competition of ...

• different species

• the same species

• two predators

• to preys

Select all the apply: Limiting factors can include...

• food

• space

• population of predators

• physical factors like pH or salinity

What is wrong with this food web?

• the arrows are going in the wrong direction

• sea turtles do not eat jellyfish

• zooplankton are eaten by phytoplankton