Why are there more herbivores than carnivores?

Plants are more abundant and provide more energy at base of the food chain

What is an ecological niche?

The role a species has in its environment, all its interactions

What role does a scavenger play in a food chain?

It consumes dead animals that were not killed by itself

What does ectothermic mean?

An animal that relies on external sources to regulate its body temperature

What is an invasive species?

A non-native species that spreads quickly and causes harm to environment

What does sustainability mean?

Meeting our needs without affecting the future generations to meet theirs

Which is not a major impact of air pollution on ecosystems?

Animals grow more resistant to toxins

What happens if an ecosystem exceed carrying capacity?

Resources become depleted, leading to population decline

What is the importance of glucose in photosynthesis?

It provides plants with energy, building cellulose and starch.

Organisms that don’t photosynthesize get energy from ...?

Consuming other plants and animals

Which of the following groups of organisms form a community?

Penguins, Polar bears, Snow leopards in the arctic

What elements are involved in cellular respiration?

glucose and oxygen are used to release carbon dioxide, water and energy.

What happens if tolerance range isn’t met?

Some organisms may die or migrate, disrupting the ecosystem

How does biodiversity improve water quality?

Natural filtration through plants and microorganisms

What can happen if there are too many greenhouse gases in the atmosphere?

The Earth's temperature can rise, causing global warming

How does biodiversity indicate the health of an ecosystem?

High biodiversity can better withstand environmental change

How would the world likely be different if there was no biodiversity?

Ecosystem processes would become less efficient

Which of the following is an example of diversity within a species?

Various breeds of dogs, like Labradors and Poodles

Why does energy decrease at higher trophic levels?

Energy is lost as heat through metabolic processes at each level

What is an endangered species?

A species that is at risk of becoming extinct in the near future

Which of these activities is least likely to increase greenhouse gas emissions?

Carpooling with coworkers to work

What does ecosystem equilibrium mean?

When the interactions between organisms and their environment are balanced

What is one main reason why protected areas are important?

They conserve biodiversity and protect endangered species

studbud

Biodiversity Exam Prep - 2025

40 termsStudBud Administration37 plays

Imported from external platform

Flashcards40 cardsFPractice quizPHost liveL

Questions 40

Answers

1
Why are there more herbivores than carnivores?
Carnivores need less food to survive
Herbivores reproduce faster than carnivores
Plants are more abundant and provide more energy at base of the food chain
Herbivores live longer than carnivores
2
Which of the following is a human activity that causes habitat destruction?
Sustainable farming
Wildlife conservation
Urban development
Crop rotation
3
What is an ecological niche?
The role a species has in its environment, all its interactions
The set of behaviors a species uses to attract mates
The average number of organisms of a species found in a given area.
The specific area where an organism lives, such as a forest or pond.
4
Which vertebrate is cold-blooded and has scales?
Reptile
Amphibian
Mammal
Bird
5
How much energy is transferred from one trophic level to the next?
50%
10%
100%
1%
6
What role does a scavenger play in a food chain?
It hunts and kills other animals for food
It consumes dead animals that were not killed by itself
It breaks down dead organisms into nutrients
It produces its own food through photosynthesis
7
What does ectothermic mean?
An animal that regulates its body temperature internally
An animal that relies on external sources to regulate its body temperature
An animal that lives only in cold environments
An animal that generates heat through constant movement
8
What is an invasive species?
A native animal that helps spreads and causes harm to the environment
A native animal that helps control pests in its ecosystem
A rare species protected by law
A non-native species that spreads quickly and causes harm to environment
9
What does sustainability mean?
Protecting the environment by stopping all human development
Meeting our needs without affecting the future generations to meet theirs
Producing as much waste as possible to grow the economy
Using natural resources faster than they can be replaced
10
Which is not a major impact of air pollution on ecosystems?
Plant growth slows down
Soil becomes more acidic
Animals grow more resistant to toxins
Species interactions change
11
What happens if an ecosystem exceed carrying capacity?
The population thrives due to abundant resources
Resources become depleted, leading to population decline
Biodiversity increases as more species compete
Species evolve rapidly to adapt to the changes
12
Which ecosystem is most likely to contain the most biodiversity
Ocean
Rainforest
Arctic Tundra
Desert
13
What does a herbivore eat?
Both plants and animals
Dead and decaying matter
Only plants
Only animals
14
Indigenous led practices promote industrial agriculture, prioritizing profit and output.
True
False
15
What is the importance of glucose in photosynthesis?
It helps plants trap sunlight directly.
It provides plants with energy, building cellulose and starch.
It cools the plant during hot weather.
It helps plants absorb water from the soil.
16
Organisms that don’t photosynthesize get energy from ...?
Sunlight
Consuming other plants and animals
Moonlight
Nuclear fusion
17
Which of the following groups of organisms form a community?
Penguins, Polar bears, Snow leopards in the arctic
Penguins, Polar bears, Snow leopards in a desert
A group of lions in a jungle
Penguins, Polar bears, Cacti in the arctic
18
What elements are involved in cellular respiration?
glucose and water are used to release carbon dioxide and energy.
glucose and oxygen are used to release carbon dioxide, water and energy.
glucose and water are used to release carbon dioxide, oxygen and energy.
glucose and oxygen are used to release carbon dioxide and energy.
19
Which is not a likely result of overfishing in ecosystems?
Decline of top predators
Shifts in marine food web dynamics
Reduced ecosystem stability
Increased reproductive rates
20
Which vertebrate lays eggs and has feathers?
Amphibians
Birds
Mammals
Reptiles
21
What happens if tolerance range isn’t met?
Organisms will adapt instantly to the new conditions
Some organisms may die or migrate, disrupting the ecosystem
Biodiversity will automatically improve
All species will increase in population
22
How does biodiversity improve water quality?
Natural filtration through plants and microorganisms
By reducing oxygen levels in water
By reducing water flow to prevent erosion
By increasing water temperature to reduce bacteria
23
Which of the following is a decomposer?
Eagle
Butterfly
Grass
Mushroom
24
What can happen if there are too many greenhouse gases in the atmosphere?
The Earth cools down significantly.
The ozone layer becomes thicker, blocking all sunlight.
The Moon starts reflecting more heat back to Earth.
The Earth's temperature can rise, causing global warming
25
How does biodiversity indicate the health of an ecosystem?
High biodiversity can better withstand environmental change
High biodiversity means the ecosystem is unstable and likely to collapse.
Low biodiversity shows the ecosystem is resilient and balanced.
Biodiversity does not affect the health of an ecosystem.
26
What species interaction is it where both species benefit?
Mutualism
Predation
Parasitism
Competition
27
What kind of invertebrate has one body opening, tentacles with stinging cells and live in water?
Snail, Mollusc
Earthworm, Annelid
Grasshopper, Arthropods
Jellyfish, Cnidaria
28
How would the world likely be different if there was no biodiversity?
Natural habitats would remain unchanged
Species would adapt faster to environmental changes
Ecosystem processes would become less efficient
Ecosystems would support more complex food webs
29
Where does almost all energy in ecosystems originate?
The Moon
The Sun
Chemical energy from minerals
Heat released by tectonic activity
30
What is not a benefit of trees to our ecosystem?
Increasing air pollution
Providing habitats for wildlife
Preventing soil erosion
Producing oxygen
31
Which of the following is an example of diversity within a species?
Various breeds of dogs, like Labradors and Poodles
Different ecosystems, like deserts and wetlands
Various types of trees in a forest
Different species of birds in a park
32
Which is NOT a way invasive species spread?
International shipping and trade
Release by humans into new environments
Natural migration
Attaching to animals or shipping vehicles
33
Why does energy decrease at higher trophic levels?
Energy is destroyed when transferred between organisms
Higher trophic levels produce less sunlight
Energy is lost as heat through metabolic processes at each level
Organisms at higher levels store all the energy for themselves
34
Which is not a strategy to promote sustainable agriculture?
Crop rotation
Planting trees
Integrated pest management
Use of chemical fertilizers
35
What is an endangered species?
A species that is kept safe in a zoo or sanctuary
species that is very common and found all over the world
A species that is at risk of becoming extinct in the near future
A species that no longer exists anywhere on Earth
36
Which of the following is a producer?
Oak tree
Mushroom
Fox
Earthworm
37
Which of these activities is least likely to increase greenhouse gas emissions?
Burning fossil fuels for energy
Running a home heater fueled by natural gas
Deforestation for agriculture
Carpooling with coworkers to work
38
A mosquito biting a human is an example of what kind of species interaction?
Commensalism
Competition
Mutualism
Parasitism
39
What does ecosystem equilibrium mean?
When an ecosystem is free from any predators or natural disasters
When humans manage all parts of an ecosystem to prevent change
When all species in an ecosystem have the same population size
When the interactions between organisms and their environment are balanced
40
What is one main reason why protected areas are important?
They allow people to take an unlimited amount of resources
They increase urban development and industrialization
They reduce tourism and limit scientific research
They conserve biodiversity and protect endangered species

Biodiversity Exam Prep - 2025 Flashcards | StudBud