Element Cycles & Symbiotic Relationships

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.

• They show what direction the energy is flowing between organisms.

• It shows how sunlight flows within an ecosystem.

• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is it called when plants give off water vapor as a waste product?

• transpiration

• condensation

• precipitation

• evaporation

Which is the correct order of organisms in a food pyramid?

• producers, carnivores, herbivores

• carnivores, herbivores, producers

• producers, herbivores, carnivores

• herbivores, producers, carnivores

Tags

NGSS.MS-LS2-3

Wrasse fish feed on the parasites found on the black sea bass's body (usually in the mouth). This is like dental floss for the fish and both species benefit. This is an example of which type of symbiosis?

• commensalism

• predation

• parasitism

• mutualism

Tags

NGSS.MS-LS2-2

Nitrogen-fixing bacteria live in the roots of some plants. They provide nitrogen in a form the plants need and obtain a “home” and nourishment from the plant. What type of relationship is this?

• commensalism

• mutualism

• parasitism

• herbivory

What may happen if the grasshoppers were removed from the food web pictured?

• The rabbit population in the habitat would increase.

• The micer population would decrease because its the only food for the owls.

• The grass population would decrease because all the birds are eating it.

• Foxes would dies due to no food source.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The diagram represents different levels of a terrestrial food pyramid. Between which two levels is the greatest amount of energy transferred?

• grass; zebra

• zebras; cheetah

• cheetah; lion

• grass; lion

Tags

NGSS.MS-LS2-3

A snake that eats a frog that has eaten an insect that fed on a plant is a _____.

• third-level consumer.

• second-level producer.

• first-level producer.

• first-level consumer.

Tags

NGSS.MS-LS2-2

A wolf stalks, kills, and then eats a rabbit. Based on its behavior, which ecological terms describe the wolf?

• herbivore, decomposer

• producer, heterotroph

• autotroph, herbivore

• carnivore, consumer

Organisms that eat producers and consumers are ___.

• herbivores

• omnivores

• carnivores

• detritivores