Biodiversity & Population Quiz

Froggy Jumps

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Explore factors shaping ecosystems.

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Angela Sanders

United States

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Biodiversity & Population Quiz


Froggy Jumps Biodiversity & Population QuizOnline version Explore factors shaping ecosystems. by Angela Sanders 1 What is carrying capacity in an ecosystem? a The average number of species present. b The maximum population size an environment can sustain long-term. c The minimum population needed to survive. 2 Which factor directly limits population growth when resources are scarce? a Mutation rate b Keystone species c Limiting factor 3 Keystone species have a large impact on biodiversity because: a They influence many other species in the ecosystem. b They are always the most abundant. c They do not interact with others. 4 A population grows until it reaches carrying capacity due to: a Infinite food supply b Resource limitation balancing births and deaths. c Predation elimination 5 What investigation step helps determine factors affecting biodiversity? a Skip controls to save time b Ignore data and guess c Plan data collection and analyze results. 6 Which scenario illustrates a limiting factor? a Drought reduces plant growth, lowering herbivore numbers. b A flood that increases food supply c Temperatures stay constant year-round 7 Population size can influence biodiversity because: a They always increase diversity. b They never interact with other species. c Smaller populations are more vulnerable to extinction. 8 How would you test the effect of a keystone species on a community? a Count only one species b Change climate randomly c Compare ecosystems with and without the keystone species. 9 Which is a qualitative data type for biodiversity studies? a Birth rates per month b Species presence/absence observations. c Population counts per year 10 Carrying capacity is reached when: a Births exceed deaths indefinitely b All resources are infinite c Births approximate deaths in a stable environment. 11 A limiting factor example in a desert ecosystem is: a Heavy rainfall b Excess nutrients c Water availability 12 What data would best show changing biodiversity over time? a One-day snapshot counts b Long-term species richness records c Unrelated climate data 13 What role do keystone species play in ecosystems? a Are the most abundant species b Maintain structure and regulate others' populations c Always prey for predators 14 If a population drops below carrying capacity, what likely happens? a Competition decreases and population may rebound. b Carrying capacity increases instantly c Extinction occurs immediately 15 Which investigation design helps infer cause-effect in ecosystems? a Anecdotal stories b Controlled experiments with replication c Single observation without controls 16 Diminished keystone species can cause: a No ecological impact b Shake-ups in community structure and diversity. c Immediate universal recovery 17 Which factor affects carrying capacity most directly? a Species color b Resource availability (food, water, space) c Weather patterns only 18 Why plan data collection before an investigation? a To delay conclusions b To ensure reliable, interpretable results. c To complicate the study 19 A population experiencing limiting factor pressure will tend to: a Explode in number b Limit growth or decline. c Become more diverse 20 What is one way to analyze data in biodiversity studies? a Ignore variance b Only use rare species data c Look for trends in population size over time.

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Biodiversity & Population Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Biodiversity & Population QuizOnline version

by Angela Sanders

What is carrying capacity in an ecosystem?

Which factor directly limits population growth when resources are scarce?

Keystone species have a large impact on biodiversity because:

A population grows until it reaches carrying capacity due to:

What investigation step helps determine factors affecting biodiversity?

Which scenario illustrates a limiting factor?

Population size can influence biodiversity because:

How would you test the effect of a keystone species on a community?

Which is a qualitative data type for biodiversity studies?

Carrying capacity is reached when:

A limiting factor example in a desert ecosystem is:

What data would best show changing biodiversity over time?

What role do keystone species play in ecosystems?

If a population drops below carrying capacity, what likely happens?

Which investigation design helps infer cause-effect in ecosystems?

Diminished keystone species can cause:

Which factor affects carrying capacity most directly?

Why plan data collection before an investigation?

A population experiencing limiting factor pressure will tend to:

What is one way to analyze data in biodiversity studies?