Relationships in Ecosystems

Question 1

When more than one individual or population in an ecosystem relies on the same limited resources.

Answer 1

Competition

Question 2

Having multiple systems that work together to accomplish various tasks.

Answer 2

Interdependent

Question 3

A system comprising all the biotic and abiotic factors in an area and all the interactions among them.

Answer 3

Ecosystem

Question 4

Interaction in population ecology, whereby members of the same species compete for limited resources.

Answer 4

Intraspecific Interaction

Question 5

Interactions between two or more species

Answer 5

Interspecific Interaction

Question 6

A relationship between organisms or species that is helpful to both.

Answer 6

Mutualism Interaction

Question 7

A self-contained living thing.

Answer 7

Organism

Question 8

A group of interacting individuals of the same species located in the same area

Answer 8

Population

Question 9

The interaction between two animals in which one animal eats the other.

Answer 9

Predatory Interaction/Predation

Question 10

A relationship between organisms of different species where one organism benefits at the expense of the other.

Answer 10

Parasitism

Question 11

An organism consumes only plants.

Answer 11

Herbivore

Question 12

An important component of life in the ocean.

Answer 12

Symbiotic Relationship

Question 13

An Interaction between organisms or species that is helpful to one but neither helpful to the other.

Answer 13

Commensalism Interaction

Question 14

What is an ecosystem?

Answer 14

An ecosystem is a community of living organisms interacting with their physical environment.

Question 15

True or False: Ecosystems can be small, like a pond, or large, like a forest.

Answer 15

True

Question 16

Fill in the blank: The two main components of an ecosystem are _____ and _____ environments.

Answer 16

biotic, abiotic

Question 17

What role do producers play in an ecosystem?

Answer 17

Producers, such as plants, convert solar energy into chemical energy through photosynthesis.

Question 18

Multiple Choice: Which of the following is NOT a type of consumer in an ecosystem? A) Herbivore B) Carnivore C) Decomposer D) Producer

Answer 18

D) Producer

Question 19

What is a food chain?

Answer 19

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Question 20

True or False: Decomposers break down dead organic material and recycle nutrients back into the ecosystem.

Answer 20

True

Question 21

Fill in the blank: The _____ is the maximum population size of a species that an environment can sustain.

Answer 21

carrying capacity

Question 22

What is biodiversity?

Answer 22

Biodiversity refers to the variety of life in a particular ecosystem, including the number of species, genetic diversity, and ecosystem diversity.

Question 23

Multiple Choice: Which of the following is a benefit of biodiversity? A) Increased disease susceptibility B) Ecosystem stability C) Resource depletion D) None of the above

Answer 23

B) Ecosystem stability

Question 24

What is an ecological niche?

Answer 24

An ecological niche is the role and position a species has in its environment, including all interactions with biotic and abiotic factors.

Question 25

True or False: Invasive species can disrupt local ecosystems.

Answer 25

True

Question 26

Fill in the blank: The _____ cycle describes the movement of water through the environment.

Answer 26

water

Question 27

What is the primary source of energy for most ecosystems?

Answer 27

The sun

Question 28

Multiple Choice: Which of the following is a characteristic of a climax community? A) High biodiversity B) Constant change C) Low stability D) None of the above

Answer 28

A) High biodiversity

Question 29

What is symbiosis?

Answer 29

Symbiosis is a close and long-term interaction between two different species.

Question 30

True or False: Mutualism is a type of symbiotic relationship where both species benefit.

Answer 30

True

Question 31

Fill in the blank: _____ is the process by which species evolve to become better suited to their environments.

Answer 31

Natural selection

Question 32

What is the difference between a habitat and a niche?

Answer 32

A habitat is the physical environment where an organism lives, while a niche is the role the organism plays in that environment.

Question 33

Multiple Choice: Which of the following is an example of a keystone species? A) Sea otters B) Grass C) Oak trees D) Bacteria

Answer 33

A) Sea otters

Question 34

What is ecological succession?

Answer 34

Ecological succession is the process by which ecosystems change and develop over time.

Question 35

True or False: Primary succession occurs in lifeless areas where soil has not yet formed.

Answer 35

True

Question 36

Fill in the blank: The _____ effect refers to the impact of human activities on ecosystems.

Answer 36

anthropogenic

Question 37

What is an ecosystem service?

Answer 37

Ecosystem services are the benefits that humans derive from ecosystems, such as clean water, pollination, and climate regulation.

Question 38

Multiple Choice: Which of the following is an example of a provisioning service? A) Pollination B) Water filtration C) Timber production D) Climate regulation

Answer 38

C) Timber production

Question 39

What is the role of pollinators in ecosystems?

Answer 39

Pollinators help in the reproduction of flowering plants by transferring pollen, which is crucial for plant diversity and food production.