NGSS.MS-LS2-2

The shark and remora fish have a __________________ relationship.  The remora fish benefits by attaching itself to a shark and eating scraps and pieces of fish that the shark does not eat.  The shark is not harmed and does not benefit from the remora fish.

• predator and prey
• commensalism
• parasitism
• coevolution

Tags

NGSS.MS-LS2-2

A scientist who studies the interaction between organisms and their environments

• Biologist
• Zoologist
• Geologist
• Ecologist

Tags

NGSS.MS-LS2-2

Two closely related species of birds live in the same tree. Species A feeds on ants and termites, while Species B feeds on caterpillars. The two species coexist successfully because

• each occupies a different niche

• they interbreed

• they use different methods of reproduction

• birds compete for food

Tags

NGSS.MS-LS2-2

Which is an example of a biotic factor in the environment?

• The climate in the region

• Carnivores that consume other animals

• Amount of helium gas in the air

• Flow of water in a river

Tags

NGSS.MS-LS2-2

In this food web, which of the following organisms eats the largest variety of different producers?

• Mouse

• Grasshopper

• Dragonfly

• Butterfly

Tags

NGSS.MS-LS2-2

This type of biodiversity refers to the ways that species interact with each other and their environment.

• Ecological

• Species

• Genetic

• Organisms

Tags

NGSS.MS-LS2-2

This photograph shows a bird cleaning a crocodile's teeth by eating bits of food stuck in the croc's mouth. This is an example of

• commensalism

• parasitism

• mutualism

Tags

NGSS.MS-LS2-2

Which of these phrases describes the biotic factors of an ecosystem?

• the number of individual organisms in each trophic level of an ecosystem

• any living part of an environment

• an organism that eats only meat

Tags

NGSS.MS-LS2-2

In the Arctic Ocean, sharks eat whales, and whales eat crabs. In the last 10 years, the sizes of the populations have been stable, but recently the size of the crab population increased. What will likely happen to the shark population?

The size of the shark population will . . .

• increase

• stay the same

• decrease

Tags

NGSS.MS-LS2-2

Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers and the eggs hatch. The larvae eat some of the seeds, and spread them around. Both species are benefited.

• mutualism

• commensalism

• parasitism

Tags

NGSS.MS-LS2-2