Ecology
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How does a producer make its own food?
By performing photosynthesis?
What are the seven classification levels?
Kingdom, phylum ,class, order ,family, genus, species.
Give two reasons why biodiversity is important?
Moral reasons, species may be useful to us, protects food supply, limits large changes to food chains and webs.
What is bacterial resistance?
How bacteria becomes resistant to antibiotics.
What is a food chain?
A diagram that shows the feeding relationships between organisms.
What is an ecosystem?
A biological community of interacting organisms and their physical environment.
Give an examples of a physical adaptation.
Sharp teeth, camouflage, spikes, foot surface area.
Give an example of a microbe decomposer.
Bacteria, fungi.
In a food chain or web, what name is given to an organisms that eats the producer?
The primary consumer.
In a food chain or web, why are the arrows drawn from the organism being eaten to the organism eating it?
To show the flow of energy.
What name is given to organisms that eat animals?
Predators
Name two ways in which scientists try to maintain biodiversity.
Gene banks, protection of habitats, breeding programmes.
Give two sources of evidence for evolution?
The fossil record, bacterial resistance.
Name two things that can cause extinction.
New predators, new diseases, changes to habitat, more successful competitors, catastrophic events(like volcanoes or asteroid impacts)
How can scientists estimate population size?
Using quadrats(sampling from a larger area)
What is interdependence?
How organisms depend on each other for survival.
What can mutations result in?
Slight changes to an organisms adaptations.
What is a species.
A group of organisms that can breed and produce fertile offspring.
What name is given to organisms that make their own food?
Producers
What is extinction?
When an entire species dies out.
What is the word equation for photosynthesis?
Carbon Dioxide + water –> Glucose + oxygen
What is a food web?
A food web is a set of linked food chains.
What is competition?
Where organisms have to struggle against each other for resources.
In a food chain or web, which direction are the arrows drawn in?
From the organism being eaten to the organism eating it.