Icev Ecology

In the wild, some alligators gets their teeth cleaned by birds. The birds gets their food from the alligators' teeth.

What type of symbiosis is this?

• Mutualism

• Commensalism

• Parasitism

• Neutralism

Tags

NGSS.MS-LS2-2

Which of the following best describes the role of bacteria in this food web?

•  Obtain energy from dead organisms and waste material and transfers that energy to living organisms

•  Controls the population by removing energy from the living organisms

•  Uses energy from dead organisms or waste material to break down dead organisms and waste material into nutrients. 

•  Uses energy from light, to combine oxygen, carbon dioxide and water and converts it into energy in the form of sugar. 

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which of the following best describes a relationship in the food web?

• The green plant is a decomposer because it is consumed by the rabbit.

• The goat is a primary consumer because it is consumed by the jackal.

• The wild cat is a secondary consumer because it consumes the rabbit.

• The mouse is a producer because it consumes the green plant.

Tags

NGSS.MS-LS2-3

In this food web, the snake and the mouse have this relationship

• mutualism

• commensalism

• predation

• parasitsm

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following describes a native population where there has been a decrease in the availability of food ?

• An extinct wolf population remains extinct in a local forest.

• A goldfish population that has fewer individuals than the prior year.

• A pigeon population that has the same number of offspring as the past two years.

• A frog population has more adults in a pond than when they were counted last year

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A farmer wants to expand the family farm, but doesn't want to negatively affect the local red tail hawk population. The farmer knows the following about the red tail hawk. 1. They nest in the nearby forest in the tall parts of the trees. 2. They eat fish, rats, mice, rabbits, lizards and birds. 3. They hunt in open fields, plains, lakes and rivers. What choice below would have the largest negative impact on the red tail hawk population?

• Cut down the forest to plant a wheat field.

• Change the flow a nearby river to open up a field to plant corn

• Plant an apple orchard on part of an open field.

• Build a barn to park the tractor

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Mealy bugs are small insects that live on various types of plants and feed on their sap. When there is a large population of mealy bugs occupying a plant, they may remove too much sap causing the plant to change color or wilt. Ladybugs eat mealy bugs and are often used in greenhouses to control the population. Which type of relationship exists between the mealybugs’ ladybugs and plants?

• The relationship between the ladybugs and mealybugs are an example of competition.

• The ladybugs and mealybugs are an example of predation while the mealybugs and plants are an example of parasitism.

• The ladybugs and plants are an example of mutualism while the mealybugs and plants are an example of parasitism.

• The mealybugs and plants are an example of commensalism while the ladybugs and plants are an example of predation.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is this called?

• Food Web

• Food Chain

• Abiotic Factors

Tags

NGSS.MS-LS2-3

All food chains begin with a ____________.

• primary consumer

• secondary consumer

• producers

• scavengers

Tags

NGSS.MS-LS2-3

Barnacles are animals that cannot move. In order to get food, they attach to whales and catch any floating plankton in the water. The whale is neither helped nor harmed in the interaction. What type of symbiosis is this?

• Mutualism

• Commensalism

• Parasitism

• Neutralism

Tags

NGSS.MS-LS2-2