Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• a.  Organism, cell, tissue, organ, organ system
• a.  Organ system, organ, tissue, cell, organism
• a.  Cell, tissue, organ, organ system, organism
• a.  Cell, organ, tissue, organ, organism, organ system

Tags

NGSS.HS-LS1-2

Which describes the components of a Coral Reef Ecosystem?

• The Clown fish and it's eggs.

• The organisms, water, rocks and sunlight in the Coral Reef.

• The sand and water that make up the sea floor.

• The colorful fish, barracuda, fish eggs, and other ocean animals.

Lichen is actually 2 organisms: fungi and algae. The fungus has an acid that dissolves minerals in rock providing nutrients for the algae and water for the algae. The algae lives inside the fungus and carries on photosynthesis making food for the fungus.

• mutualism

• commensalism

• parasitism

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

Tags

NGSS.MS-LS2-2

Bears and coyotes both consume large plant-eating mammals such as deer. When the deer are in short supply, bears and coyotes may fight over the prey. This type of biological interaction is called

• commensalism

• mutualism

• parasitism

• competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants. What type of symbiosis is this?

• Predation

• Parasitism

• Commensalism

• Mutualism

Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit. 

• parasitism
• commensalism
• mutualism

Tags

NGSS.MS-LS1-4

The owl and weasel compete for which organism?

• Hawk
• Spider
• Grasshopper
• Shrew

The arrows in a food chain or web represent ...

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show the direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS2-3

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4