Unit 3 Test review (biodiversity, succession, ecosystem)

Quiz
•
Science
•
8th Grade
•
Hard
+5
Standards-aligned
Bradley Fulcher
Used 3+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following represents a population?
All the fish in a pond
A single fish
Fish, plants, and insects in a pond
The water, soil, and rocks in a pond
Answer explanation
The correct choice, 'All the fish in a pond', represents a population because it includes all individuals of a species in a specific area, while the other options refer to individual organisms or different species.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What level of organization includes both living and nonliving components in a particular area?
population
community
ecosystem
organism
Answer explanation
An ecosystem includes both living organisms (like plants and animals) and nonliving elements (such as water and soil) in a specific area, making it the correct choice for this question.
Tags
NGSS.MS-LS2-3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What term describes a group of individuals of the same species living in a specific area?
Population
Community
Species
Ecosystem
Answer explanation
The term 'Population' refers to a group of individuals of the same species living in a specific area. In contrast, 'Community' includes multiple species, 'Species' refers to the type itself, and 'Ecosystem' encompasses both living and non-living components.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a scientist studies interactions between squirrels, birds, and trees in a forest, they are focusing on which level of organization?
Organism
Population
Community
Biosphere
Answer explanation
The scientist is studying interactions among different species (squirrels and birds) and their environment (trees), which defines a community. A community includes all the populations of different species in a specific area.
Tags
NGSS.MS-LS2-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A group of ecosystems that share similar climates and organisms is called a ________.
community
biosphere
biome
population
Answer explanation
A biome is a large area characterized by its climate and specific types of plants and animals. It encompasses multiple ecosystems that share these features, making 'biome' the correct answer.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Match each level of organization to its correct example:
1. Organism
2. Population
3. Community
4. Ecosystem
1- A single wolf, 2 - A pack of wolves, 3 - Wolves, deer, and trees, 4 - A forest with animals, plants, and water
1- A pack of wolves, 2 - A single wolf, 3 - Wolves, deer, and trees, 4 - Rocks and soil
1- A forest with animals, plants, and water, 2 - A single wolf, 3 - Wolves, deer, and trees, 4 - A pack of wolves
1- Wolves, deer, and trees, 2 - A forest with animals, plants, and water, 3 - A single wolf, 4 - A pack of wolves
Answer explanation
The correct matches are: 1 - A single wolf (organism), 2 - A pack of wolves (population), 3 - Wolves, deer, and trees (community), 4 - A forest with animals, plants, and water (ecosystem).
Tags
NGSS.MS-LS2-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is primary succession?
Succession that occurs in areas where life has previously existed
Succession that starts on bare rock or areas without soil
Succession that occurs in forests
Succession that replaces aquatic ecosystems
Answer explanation
Primary succession occurs in lifeless areas, such as bare rock or regions without soil, where new ecosystems develop from scratch. This distinguishes it from secondary succession, which happens in previously inhabited areas.
Tags
NGSS.MS-LS2-4
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