TCI Ecosystems Unit 1 Study Set A

What happens to the predator population if the prey population increases? (Lesson 1 Notes)

The predator population will also increase

What is one way that competition over the same resource such as food be reduced? (Lesson 1 Notes)

The resource can be used in different ways which will reduce competition

What happens to the size of a population if one of its resources decreases? (Lesson 1 Notes)

The population size will decrease

If an organism eats both plants and animals, what type of predator would it be? (Lesson 2 Notes)

Omnivore

If an organism's food source increases, how would that change its predator's population size? (Lesson 1 Notes)

The predator's population size would increase as well

If a new predator is brought to an island and the population size of a different species declined after the predator was introduced, what could explain the decrease in the population size? (Lesson 1 Notes)

The new predator preyed on the species causing it to decline

What happens to a forest that has been burned by a forest fire after many years? (Lesson 3 Notes)

More plants and animals will be able to move into the burned area and grow and it might return to a mature forest ecosystem again

If erosion occurs in an area, what will happen if the area is not disturbed? (Lesson 3 Notes)

Plants and animals will move into the eroded area

Which of these is an example of a predator-prey relationship? (Lesson 1 Game)

A chameleon eating a cricket

Which of the following is a gradual change in an ecosystem? (Lesson 3 Game)

A pond dries up over the course of a hundred years

In order to survive, grow and reproduce, living things need these resources: (Lesson 1 Game)

Other living things and non-living things.

Which of these is not a carnivore? (Lesson 2 Game)

A grasshopper

Why is an herbivore considered a predator? (Lesson 1 Game)

An herbivore's prey is a plant and plants are organisms.

Which of these is an example of how predators affect prey populations? (Lesson 1 Game)

The zebra population in an area decreases after lions begin hunting them.

Why might it take hundreds to thousands of years for a pond to transform into a forest? (Lesson 3 Game)

Large changes to an ecosystem can take a lot of time.

Competition over a limited amount of resources can lead to (Lesson 1 Game)

Lowered population size of one or both of the competing species.

How does the scarcity of prey populations affect predator populations? (Lesson 2 Game)

Scarcity of prey population leads to a decrease in the predator population.

Changes in the living parts of an ecosystem can cause (Lesson 3 Game)

Changes in the characteristics and available resources in the ecosystem.

Gradual changes to ecosystems (Lesson 3 Game)

Can happen in predictable ways.

What allows a species to be more competitive over food in a particular environment? (Lesson 1 Game)

Their feeding habits are better than other species feeding habits.

Which of these describes a mutualistic relationship between species? (Lesson 2 Game)

A bird scatters the seeds, or offspring, of a plant it ate

What is a material or energy needed by living things to survive, grow and reproduce? (Lesson 1 Vocabulary)

Resource

What is a group of individuals of the same species that lives and reproduces in the same area? (Lesson 1 Vocabulary)

Population

What is a large area of Earth characterized by certain physical conditions and the living things that are found there? (Lesson 1 Vocabulary)

Biome

What is a group of populations of living things and the nonliving parts of their environment that support them? (Lesson 1 Vocabulary)

Ecosystem

What is a group of living things that share traits and can breed successfully with each other but not with other groups? (Lesson 1 Vocabulary)

Species

What is an interaction between living things that need the same limited resource? (Lesson 1 Vocabulary)

Competition

What is the parts of the Earth in which organisms are able to live? (Lesson 1 Vocabulary)

Biosphere

What is an individual living thing? (Lesson 1 Vocabulary)

Organism

What is a relationship between two species in which both species benefit? (Lesson 2 Vocabulary)

Mutualism

What is an organism that mainly eats plants or plant parts? (Lesson 2 Vocabulary)

Herbivore

What is a relationship in which one organism, the predator, benefits by eating another organism, the prey? (Lesson 2 Vocabulary)

Predation

What is an organism that mainly eats animals? (Lesson 2 Vocabulary)

Carnivore

What is a relationship between two species in which one species benefits and the other is unaffected? (Lesson 2 Vocabulary)

Commensalism

What is an organism that eats both plants and animals in similar amounts? (Lesson 2 Vocabulary)

Omnivore

What is a limitation on an engineering solution? (Lesson 2 Vocabulary)

Constraints

What are the requirements that must be met for an engineering solution to be successful? (Lesson 2 Vocabulary)

Criteria

What is information obtained by observation or experimentation? (Lesson 3 Vocabulary)

Evidence

What is the predictable way that ecosystems change from one type to another? (Lesson 3 Vocabulary)

Ecological succession

What is any system that is characterized by constant change? (Lesson 3 Vocabulary)

Dynamic system

What is a relationship in which one species benefits while the other is harmed but not usually killed? (Lesson 2 Vocabulary)

Parasitism