What is an invertebrate?
An insect
An animal with a backbone
An animal without a backbone
How do non-flowering plants reproduce?
They don't
Using spores
Using runners
Which two taxonomic levels are used in the binomial system?
Genus and phylum
Family and species
Genus and species
Why is it important to take a random sample when using quadrats?
To avoid bias
To make a fair test
To improve reliability
On a 200 m2 field, 50 samples were taken and 35 slugs found. What is the estimate population of slugs in the whole field?
100
140
180
A scientist is interested in how the distribution of plants changes along a sand dune. Which method would they use to investigate this?
Quadrats
Capture/recapture
Transects
Why is biodiversity important for humans?
Biodiversity is the way we classify organisms
Biodiversity will prevent global warming
Biodiversity is a potential source of new medicines
What is biological control?
Using chemicals to kill living things
Using one species to control the numbers of another
Controlling the biology of organisms
What do we call an organism which is introduced into an area that it does not naturally inhabit?
Alien species
Native species
Endangered species
A scientist captures and marks 44 trout in a lake, and returns a week later to capture 22 marked trout and 28 non-marked trout. What is the estimate population of trout in the lake?
94
2,200