WorksheetsUnit 3 Senior Biology: Data test revision
Total questions: 17
Worksheet time: 9mins
Scientists describe biodiversity as:
all of the endangered species from a particular part of the world.
the variety of life on Earth.
the study of living systems and how diverse they are.
the study of cellular processes and how they vary.
Which of the following is NOT a measure of biodiversity?
Percentage present
Relative species abundance
Species richness
Percentage cover
According to the biological species concept, a species consists of:
individuals that can and do interbreed and are reproductively isolated.
individuals that form from the smallest cluster within a particular environment.
individuals which are capable of breeding if they are put together artificially.
individuals that have the same DNA and therefore behave alike.
Abiotic factors influence the ability of an organism to survive in a particular environment. An example of an abiotic factor is:
the number of predators present during the day.
the number of predators present during the night.
the annual amount of rainfall.
the total number of animals living in the environment.
Coral polyps are tiny sea anemones that build reefs with the help of photosynthetic algae in their tissues. The corals feed on tiny animals and, in turn, the reef is fed upon by starfish, parrot fish and sea urchins. These parrot fish may become prey of small sharks. Snails, many shellfish and sea slugs feed on algae. Coral reefs only occur in shallow waters at temperatures above 20°C. From this information it can be concluded that the coral polyps, parrot fish, small sharks, sea slugs, snails, shellfish algae, starfish and sea urchins:
form a single population that inhabits the reef ecosystem.
together with the physical environment, form the reef ecosystem.
together with the sunlight, form a tightly linked food web.
are termed abiotic factors, because they are living organisms within an ecosystem.
Bees pollinating flowers is an example of:
Competition.
Symbiosis.
Predation.
Disease.
Cladistics is the method of choice for classifying life. Which of the following best describes the term used?
A character matrix is a table that lists the characteristics of organisms. It is used to construct cladograms.
A cladogram is a diagram depicting taxonomic relationships among organisms based on overall similarity of many characteristics without regard to evolutionary history.
A clade is a taxonomic group that contains most of the descendants of a common ancestor.
Cladistics is a method of classifying organisms based on all the characteristics they have in common.
The current system of naming a species uses which of the following two levels of classification?
Phylum and class
Order and class
Genus and family
Genus and species
A popular system used by scientists is to classify organisms into five kingdoms. This is based on the nature of the organism’s:
nutrition
cells
reproduction
environment
The kingdom of the eukaryotes not classified as plants, animals or fungi is known as:
fungi
protista
plantae
archaea
Orchids naturally live on the limbs of trees, which does not affect the trees. The orchid is better able to access light. This is an example of:
parasitism
commensalism
mutualism
resource partitioning
Evolutionary relationships among a group of organisms can be displayed using a:
dichotomous key
binomial name
cladogram
molecular clock
In a parasitic relationship between two organisms:
both species benefit
one species benefits, the other species is not affected
one species benefits, the other species is weakened
neither species benefits
Which of the following is not an example of mutualism?
Bees pollinating flowers
Hermit crabs occupying empty shells
Pygmy possums collecting nectar from a eucalypt
Mistletoe birds eating the fruit of a mistletoe plant
An ecologist is interested in measuring the abundance of wombats in a forest in eastern Victoria. Which method is she most likely to use?
Random quadrats
series of transects
Capture–mark–recapture
Radio tracking
The correct definition of species richness is:
The number of individual organisms found in an area
The number of different species found in an area
A student performed a study of the local park and listed all of the plant species present. The student named 60 different species. Identify the measure of biodiversity the student has calculated.
Species diversity
Species richness
Species evenness
Species abundance
