biology

Question 1

What is an ecosystem?

Answer 1

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

Question 2

True or False: Ecosystems only include living organisms.

Answer 2

False

Question 3

What are the two main components of an ecosystem?

Answer 3

Biotic (living) and abiotic (non-living) components.

Question 4

Fill in the blank: The __________ is the largest level of organization in ecology.

Answer 4

Biosphere

Question 5

What is a habitat?

Answer 5

A habitat is the natural environment in which an organism lives.

Question 6

What is the role of producers in an ecosystem?

Answer 6

Producers, such as plants, convert sunlight into energy through photosynthesis.

Question 7

Multiple choice: Which of the following is NOT a primary consumer? A) Rabbit B) Deer C) Hawk D) Grasshopper

Answer 7

C) Hawk

Question 8

What is a food chain?

Answer 8

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

Question 9

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

Answer 9

True

Question 10

What is biodiversity?

Answer 10

Biodiversity refers to the variety of life in a particular ecosystem or on Earth as a whole.

Question 11

Fill in the blank: The __________ level of organization in ecology includes populations of different species.

Answer 11

Community

Question 12

What is the difference between a population and a community?

Answer 12

A population consists of individuals of the same species, while a community includes multiple populations of different species.

Question 13

Multiple choice: Which of the following is an abiotic factor? A) Soil B) Plants C) Animals D) Bacteria

Answer 13

A) Soil

Question 14

What is an ecological niche?

Answer 14

An ecological niche is the role and position a species has in its environment, including its habitat, resource use, and interactions with other species.

Question 15

True or False: All ecosystems are self-sustaining.

Answer 15

False

Question 16

What is carrying capacity?

Answer 16

Carrying capacity is the maximum number of individuals of a species that an environment can support sustainably.

Question 17

Fill in the blank: __________ are organisms that eat primary consumers.

Answer 17

Secondary consumers

Question 18

What is a trophic level?

Answer 18

A trophic level is a position in a food chain or food web, defined by the number of energy transfer steps from primary producers.

Question 19

Multiple choice: Which of the following best describes a keystone species? A) A species that is abundant in an ecosystem B) A species that has a disproportionately large effect on its environment C) A species that is at the top of the food chain D) A species that migrates seasonally

Answer 19

B) A species that has a disproportionately large effect on its environment

Question 20

What is ecological succession?

Answer 20

Ecological succession is the process by which ecosystems change and develop over time, often following a disturbance.

Question 21

True or False: Invasive species can disrupt the balance of an ecosystem.

Answer 21

True

Question 22

What is the primary source of energy for most ecosystems?

Answer 22

The sun

Question 23

Fill in the blank: __________ is the process by which carbon is cycled through the environment.

Answer 23

The carbon cycle

Question 24

What is a biome?

Answer 24

A biome is a large geographical area characterized by specific climate conditions and distinct plant and animal communities.

Question 25

Multiple choice: Which of the following is an example of a terrestrial biome? A) Coral reef B) Desert C) Freshwater D) Estuary

Answer 25

B) Desert

Question 26

What is the significance of the nitrogen cycle?

Answer 26

The nitrogen cycle is crucial for converting nitrogen into forms that living organisms can use, thus supporting life.

Question 27

True or False: Ecosystems can be affected by human activities.

Answer 27

True