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Science
12th
grade
Ecology - Rules for Living on Earth: Crash Course #40
20 questions
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- Interactive video for next 9 questions00:00 / 10:261. Multiple Choice01:1930 seconds1 pt
What is the primary focus of ecology?
The study of genetic inheritance
The study of organisms and their environment
The study of individual organisms
The study of cellular structures
2. Multiple Choice02:2030 seconds1 ptWhat does a population consist of?
Multiple species in one ecosystem
A single species in multiple ecosystems
A group of organisms of the same species in a specific area
All the biotic and abiotic factors in an area
3. Multiple Choice03:0930 seconds1 ptWhat is the difference between a community and an ecosystem?
There is no difference; they are interchangeable terms
Communities include only the living components, while ecosystems include both living and nonliving components
Ecosystems include only animals, while communities include plants and animals
Communities do not interact with the environment, while ecosystems do
4. Multiple Choice06:0430 seconds1 ptWhich factors are most influential in determining the distribution of life on Earth?
Temperature and water
Sunlight and elevation
Temperature and soil type
Water and sunlight
5. Multiple Choice06:3030 seconds1 ptWhat defines a biome?
The types of human activities it can support
The climate, particularly temperature and precipitation
Its geographical location
The specific species it contains
6. Multiple Choice07:0130 seconds1 ptWhy are tropical rainforests so biodiverse?
They are located on mountains
They receive a high amount of rainfall and have warm temperatures
They have a high rate of photosynthesis
They are isolated from other ecosystems
7. Multiple Choice07:2830 seconds1 ptWhat is the primary reason deserts and tundras have sparse vegetation?
Extreme temperatures
High wind speeds
Lack of sunlight
Low precipitation
8. Multiple Choice09:0730 seconds1 ptHow do marine biomes primarily differ from each other?
By factors like temperature, light, and oxygen content
By the salinity of the water
By the types of fish they contain
By their proximity to land
9. Multiple Choice09:4030 seconds1 ptWhat is the ultimate goal of studying ecology according to the video?
To catalog all species on Earth
To ensure the continued existence of humans and other life forms
To understand the chemical reactions in organisms
To explore the universe beyond Earth
- 11. Multiple Choice
Which level of ecological organization is concerned with both the biotic and abiotic components of an environment?
Community
Population
Ecosystem
Biosphere
- 12. Multiple Choice
What is the term used to describe a group of the same species living in the same area?
Community
Population
Ecosystem
Habitat
- 13. Multiple Choice
What can lead to a decrease in biodiversity?
Natural disasters
Habitat destruction
Pollution
All of the above
- 14. Multiple Choice
What is an ecosystem?
The interactions among living and non-living things in an environment.
A type of organism that can only be seen with a microscope.
A bunch of moving parts that do work.
The newest craze in social media.
- 15. Multiple Choice
Something that regulates the size of a population is called...
a limiting measure
a limiting factor
carrying capacity
biodiversity
- 16. Multiple Choice
What role do producers play in an ecosystem?
They consume other organisms for energy
They decompose organic material
They produce oxygen and food that other organisms can eat
They regulate the population of other species
- 17. Multiple Choice
In a food chain, which level is directly above primary consumers?
Secondary consumers
Tertiary consumers
Producers
Decomposers
- 18. Multiple Choice
What is the term used to describe a group of individuals of the same species living in the same area?
Community
Population
Ecosystem
Biome
- 19. Multiple Choice
Frogs, the water they live near, the snakes that eat them, the trees they live in and the sun all make up
population
ecosystem
community
biotic factors
- 20. Multiple ChoiceWhich is classified as an ecosystem?a bumble beea bee hivebees, grass, trees, birds, frogsbees, grass, frogs, water, sunlight
- 21. Multiple Choice
Why is biodiversity important?
It makes the world more interesting
It supports ecosystem services that humans rely on
It means more food choices
All of the above
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