Ch 4 Lesson 3: Changes in Ecosystems

call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/23

encourage image

There's no tags or description

Looks like no tags are added yet.

Last updated 4:50 AM on 8/14/26
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai
Chat
Add student to class section state
Add studentsNo students in these sections. Invite them to track progress!

24 Terms

1
New cards

extinct species

A species that no longer exists anywhere on the Earth.

<p>A species that no longer exists anywhere on the Earth.</p>
2
New cards

endangered species

A species that is in very high danger of becoming extinct.

<p>A species that is in very high danger of becoming extinct.</p>
3
New cards

threatened species

A species with low numbers that could soon become endangered.

<p>A species with low numbers that could soon become endangered.</p>
4
New cards

succession

The process of one ecosystem slowly changing into a new and different ecosystem.

<p>The process of one ecosystem slowly changing into a new and different ecosystem.</p>
5
New cards

primary succession

A type of succession that begins in an area with no living things.

<p>A type of succession that begins in an area with no living things.</p>
6
New cards

pioneer species

The very first organisms to live in an area that was previously lifeless.

<p>The very first organisms to live in an area that was previously lifeless.</p>
7
New cards

pioneer community

The first group of different organisms that move into a barren area.

<p>The first group of different organisms that move into a barren area.</p>
8
New cards

climax community

The final stage of succession that remains stable until it is disturbed.

<p>The final stage of succession that remains stable until it is disturbed.</p>
9
New cards

secondary succession

The process of a new community growing where an ecosystem already existed before.

<p>The process of a new community growing where an ecosystem already existed before.</p>
10
New cards

habitat loss

The destruction of a natural home, which is the biggest threat to most organisms.

<p>The destruction of a natural home, which is the biggest threat to most organisms.</p>
11
New cards

pollution

Harmful materials that damage the quality of the water, soil, or air.

<p>Harmful materials that damage the quality of the water, soil, or air.</p>
12
New cards

introduced species

A new animal brought into an ecosystem that can threaten the native species.

<p>A new animal brought into an ecosystem that can threaten the native species.</p>
13
New cards

pesticide

A chemical used by humans to kill insects that can also harm other organisms.

<p>A chemical used by humans to kill insects that can also harm other organisms.</p>
14
New cards

soil

The material formed when lichens, mosses, and rocks are broken down by decomposers.

<p>The material formed when lichens, mosses, and rocks are broken down by decomposers.</p>
15
New cards

lichen

A hardy organism that can grow on bare rock to start primary succession.

<p>A hardy organism that can grow on bare rock to start primary succession.</p>
16
New cards

drought

A long period without rain that can drastically alter the balance of an ecosystem.

<p>A long period without rain that can drastically alter the balance of an ecosystem.</p>
17
New cards

native species

The original plants and animals that naturally live in a specific ecosystem.

<p>The original plants and animals that naturally live in a specific ecosystem.</p>
18
New cards

habitat

The specific environment where an organism lives and finds what it needs to survive.

<p>The specific environment where an organism lives and finds what it needs to survive.</p>
19
New cards

migration

A response to ecosystem change where animals move to a new place to survive.

<p>A response to ecosystem change where animals move to a new place to survive.</p>
20
New cards

adaptation

A response to ecosystem change where a species changes its body to survive.

<p>A response to ecosystem change where a species changes its body to survive.</p>
21
New cards

predator

An animal that hunts and eats other animals for food in an ecosystem.

<p>An animal that hunts and eats other animals for food in an ecosystem.</p>
22
New cards

nutrients

Substances in soil or water that plants and other organisms need to grow.

<p>Substances in soil or water that plants and other organisms need to grow.</p>
23
New cards

global warming

A change in the Earth's temperature that threatens many species with extinction.

<p>A change in the Earth's temperature that threatens many species with extinction.</p>
24
New cards

bacteria

Tiny organisms that act as decomposers to help form soil during primary succession.

<p>Tiny organisms that act as decomposers to help form soil during primary succession.</p>