Ecosystem Dynamis/Biodiversity

Question 1

. What is one way people are helping restore coral reefs?

Accepted Answer

Using artificial reefs and coral gardening

Question 2

Which of the following is an example of a keystone species?

Accepted Answer

Wolves

Question 3

What can affect population sizes in an ecosystem?

Accepted Answer

Food, water, space, and predators

Question 4

What might happen if a keystone species disappears from an ecosystem?

Accepted Answer

The food web might break down and biodiversity could drop

Question 5

What is biodiversity?

Accepted Answer

The variety of living things in an area

Question 6

What is ecosystem resilience?

Accepted Answer

An ecosystem’s ability to recover after being disturbed

Question 7

What are ecosystem services?

Accepted Answer

Benefits that ecosystems provide to people and other organisms

Question 8

How did the peppered moth population change during the Industrial Revolution?

Accepted Answer

Dark-colored moths became more common due to pollution

Question 9

Why are algal blooms dangerous to aquatic life?

Accepted Answer

They use up oxygen in the water, creating dead zones

Question 10

Which of these is a provisioning service from an ecosystem?

Accepted Answer

Food and fuel

Question 11

What is natural selection?

Accepted Answer

The process where better-adapted organisms survive and reproduce

Question 12

What caused light-colored peppered moths to decrease in number during the Industrial Revolution?

Accepted Answer

Pollution darkened the trees, making light-colored moths easier to see

Question 13

Why is biodiversity important for ecosystems?

Accepted Answer

It supports key processes and makes ecosystems stronger

Question 14

What does the term "population" refer to in an ecosystem?

Accepted Answer

A group of the same kind of organism in a specific area

Question 15

How can invasive species disrupt a food web?

Accepted Answer

By outcompeting native species for resources

Question 16

What happens when people overuse natural resources like fish or trees?

Accepted Answer

Ecosystem services are damaged, and recovery is harder

Question 17

Which of the following is an example of a cultural ecosystem service?

Accepted Answer

Hiking and enjoying nature

Question 18

What are invasive species?

Accepted Answer

Species brought to new environments by humans that harm ecosystems

Question 19

Which species mentioned in the reading is causing major problems in the Florida Everglades?

Accepted Answer

Burmese python

Question 20

What is the main reason coral reefs are being damaged?

Accepted Answer

Pollution and climate change

Question 21

What is an example of a regulating service provided by ecosystems?

Accepted Answer

Pollination and climate control

Question 22

What is a common result of too much fertilizer entering lakes and oceans?

Accepted Answer

Algal blooms and dead zones

Questions 22