Default Title

Question (1)

QN0034462

The stable condition in which living organisms and their surroundings remain properly regulated is called ________.

(A) competition
(B) ecological balance
(C) migration
(D) decomposition

Correct Answer: B

Explanation:

Ecological balance is the stable state of an ecosystem.

Link:

Report Error

Question (2)

QN0034463

Which group forms the foundation of balance in most ecosystems?

(A) Producers
(B) Carnivores
(C) Parasites
(D) Scavengers

Correct Answer: A

Explanation:

Producers form the base of ecosystem food systems.

Link:

Report Error

Question (3)

QN0034464

A grassland has 200 grass plants and 50 rabbits. What is the ratio of grass plants to rabbits?

(A) 2 : 1
(B) 3 : 1
(C) 4 : 1
(D) 5 : 1

Correct Answer: C

Explanation:

200 : 50 = 4 : 1.

Link:

Report Error

Question (4)

QN0034465

Which interaction helps maintain population balance between predators and prey?

(A) Predation
(B) Germination
(C) Evaporation
(D) Pollination only

Correct Answer: A

Explanation:

Predation controls prey populations.

Link:

Report Error

Question (5)

QN0034466

If predators are removed from an ecosystem, the prey population is most likely to ________.

(A) decrease immediately
(B) remain unchanged forever
(C) increase rapidly
(D) disappear completely

Correct Answer: C

Explanation:

Without predators, prey populations often increase rapidly.

Link:

Report Error

Question (6)

QN0034467

A forest contains 180 deer. If 30 deer are lost to predators during a season, how many deer remain?

(A) 120
(B) 140
(C) 150
(D) 160

Correct Answer: C

Explanation:

180 − 30 = 150.

Link:

Report Error

Question (7)

QN0034468

Which of the following interactions benefits both organisms involved?

(A) Mutualism
(B) Predation
(C) Competition
(D) Parasitism

Correct Answer: A

Explanation:

In mutualism, both organisms benefit.

Link:

Report Error

Question (8)

QN0034469

The exact term for organisms competing for the same limited resource is ________.

(A) decomposition
(B) competition
(C) migration
(D) adaptation

Correct Answer: B

Explanation:

Competition occurs when organisms use the same limited resource.

Link:

Report Error

Question (9)

QN0034470

In an ecosystem, producers increase from 120 to 180. By how many producers has the population increased?

(A) 40
(B) 50
(C) 60
(D) 70

Correct Answer: C

Explanation:

180 − 120 = 60.

Link:

Report Error

Question (10)

QN0034471

Why are decomposers important for ecosystem balance?

(A) They recycle nutrients.
(B) They produce sunlight.
(C) They stop plant growth.
(D) They remove water.

Correct Answer: A

Explanation:

Decomposers return nutrients to the ecosystem.

Link:

Report Error

Question (1)

The stable condition in which living organisms and their surroundings remain properly regulated is called ________.

Explanation:

Link:

Question (2)

Which group forms the foundation of balance in most ecosystems?

Explanation:

Link:

Question (3)

A grassland has 200 grass plants and 50 rabbits. What is the ratio of grass plants to rabbits?

Explanation:

Link:

Question (4)

Which interaction helps maintain population balance between predators and prey?

Explanation:

Link:

Question (5)

If predators are removed from an ecosystem, the prey population is most likely to ________.

Explanation:

Link:

Question (6)

A forest contains 180 deer. If 30 deer are lost to predators during a season, how many deer remain?

Explanation:

Link:

Question (7)

Which of the following interactions benefits both organisms involved?

Explanation:

Link:

Question (8)

The exact term for organisms competing for the same limited resource is ________.

Explanation:

Link:

Question (9)

In an ecosystem, producers increase from 120 to 180. By how many producers has the population increased?

Explanation:

Link:

Question (10)

Why are decomposers important for ecosystem balance?

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY