Unit 9 Mastery Check

Which of the following is an example of a predator-prey relationship?

• A. Lions hunt with other lions

• B. Frog eats a fly

• C. Birds nest in a tree

• D. Zebra and giraffes compete for the same food source

Which of the following is a symbiotic relationship where one organism benefits and the other is not helped or harmed?

• Mutualism

• Commensalism

• Parasitism

Which of the following is a symbiotic relationship where both organisms benefit?

• Mutualism

• Commensalism

• Parasitism

Match each example with the appropriate symbiotic relationship.

• Dog and tapeworm

• Commensalism

• Crocodile and Plover bird

• Parasitism

• Remora and Shark

• Mutualism

Tags

NGSS.MS-LS2-2

Which of the following is a relationship where one organism benefits and the other is harmed?

• Mutualism

• Commensalism

• Parasitism

What type of symbiotic relationship is shared between the bee and the flower?

• Mutualism

• Commensalism

• Parasitism

Tags

NGSS.MS-LS2-2

A scuba diver swam near a coral reef. She noted the relationships between pairs of animals that she observed. Select the TWO relationships from the table that would be considered commensalistic.

• relationship 1

• relationship 2

• relationship 3

• relationship 4

• relationship 5

Limiting factors are environmental factors that limit the number of organisms that can survive in a certain area at a certain time. Which of the following would be a limiting factor for any given species?

(a)   ​ ​ (b)   ​ (c)  

• restricted amount of living space or habitat
• abundance of food and water
• clean air

• Limited resources
• Predators

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Black bears and white-tailed deer are sometimes found in the same habitat, but they occupy different niches. Which best explains the difference between habitat and niche?

• Habitat is where the animal finds food, but niche describes its physical characteristics.

• Habitat is where the animal hibernates, but niche determines how well it competes.

• Habitat is where the animal lives, but niche defines its role in the ecosystem.

• Habitat is where the animal sleeps, but niche explains how it defends itself.

Organisms from which niche contain the greatest amount of energy?

• the producers

• the decomposers

• the primary consumers

• the secondary consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3