1.4.10.H Pyramid of Numbers1.4.11.H Ecological Relationships

1.4.12.H Population Dynamics

Follow-Me – iQuiz

Q. Comment on the relative sizes of an individual producer and an individual primary consumer in a pyramid of numbers.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

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for the Next Question

Q. What is a predator?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. What does an ecologist mean by competition?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

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for the Next Question

Q. What term is used to describe an animal that is killed and eaten?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

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Q. True or False. Competition is generally more intense between members of the same species than between members of

different species.An animal which kills and eats

another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

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for the Next Question

Q. Suggest possible effects of the disappearance of a plant species on the populations of other plants and animals in the

ecosystem.An animal which kills and eats

another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. What is contest competition?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. What term do ecologists use to describe an animal which kills and eats other animals?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. If the population of prey declines suggest two possible consequences for the predators.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. What is scramble competition?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Apart from competition, state another factor that limits population growth.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Give an example of predation by naming a predator and its prey.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Where one organism lives in or on a second species, feeding on it and causing it harm is called …

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Name a factor, other than competition, that controls wild populations.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Mortality levels resulting from infection by a particular virus tend to decline over the years. Why?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Marking an animal might endanger it. Why?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Suggest a role for parasites in the overall scheme of nature.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Name a predator and give one adaptive technique.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Suggest an effect on human population of an increased availability of contraception.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. All the members of a species living in an area is referred to as …

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Give four factors that influence the size of the human population.

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. Mortality levels tend to be higher in the migratory animal species. Why?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. The population of a predator did not decline following a big reduction in the population of its main prey. Why?

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

Please CLICK on THIS BOX

for the Next Question

Q. A relationship between two organisms in which both benefit is called …

An animal which kills and eats another animal for food

Different prey

Famine; Birth control; War; Disease; Birth rate; Death rate

or longevity;

FALSE

Each organism gets some of resource

Host immunity develops; Natural selection; Vaccination

Hazards encountered on migration

Fox, Speed and sharp canine teeth

Fox, Chicken, Hawk, Rabbit

Mutualism; Symbiosis

Parasitism

Population control

Predator

Prey

More conspicuous to predators; Social outcast;

Toxic marker

When two or more organisms fight for a resource that is in

short supply

Starvation or death; Migration; Decline in population; Change

food source

Producer larger; Consumer smaller

TRUE

Consumers of this plant may decrease; Numbers of other plant species may increase;

One organism loses the resource

Decrease (no increase) in population; Improved social

conditions; Reduced STIs

Population

Disease; Parasitism; Food availability; Pollution; Predation;

Hunting

CONGRATULATIONS

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