NEW
Font size
WorksheetsYear 11 Biology Revision: Module 3 Biological Diversity
Total questions: 21
Worksheet time: 5mins
Abiotic selection pressures in an organism's environment include:
grass, humans, salinity, oxygen
fire, soils, pH, trees
air temperature, light, oxygen, water
soil temperature, light, trees, insects
An example of physiological adaptation of the red kangaroo is:
blood vessels in the forelimbs which dilate in hot weather
licking the forelimbs in hot weather
a powerful tail to assist balance when hopping
a dense network of blood vessels close to the skin in forelimbs
In Australia, the cane toad is an introduced species which has undergone a population explosion and has an extensive distribution. This is a result of their:
evolutionary change within an ecosystem
rapid reproduction and lack of predators
large sole food source in the cane beetle
rapid dispersal and ability to hop
The fossil record demonstrates:
an increase in the number of organisms over small expanses of geological time
a decrease in the diversity of organisms over large expanses of geological time
an increase in the number and diversity of species over large expanses of geological time
an increase in the diversity of species over small expanses of geological time
The relatively rapid speciation of 13 different species of finches on the Galapagos Islands from a single ancestral species is an example of:
instant speciation by polyploidy
microevolution
macroevolution
adaptive radiation
According to theories about early life, the earliest organisms on Earth were single-celled. What were these organisms mostly likely to be?
Photosynthetic autotrophs
Chemosynthetic autotrophs
Heterotrophic prokaryotes (aerobic respirers)
Heterotrophic prokaryotes (fermenters)
Identify the statement that is most accurate for the relationship between evolution and natural selection.
Evolution is the mechanism for natural selection
Natural selection is the mechanism for evolution
Evolution results in natural selection
Natural selection results in evolution
Identify a change that has occurred in the distribution of Australian flora and fauna over time.
Platypus are extinct in all states except Tasmania
Kangaroos have become restricted to desert areas
Eucalypts have become more widespread
Rainforest species have become more widespread
Other insects cannot, but, a bumble bee has just enough weight to open up the snapdragon flower and pollinate. This adaption is ....
convergent evolution
co-evolution
divergent evolution
speciation
The combined alleles of all individuals in a population is called the population's
phenothype
gene pool
mutation rate
allele frequency
Natural selection could not occur without
geographic isolation
variation in the population
stable environments
competition for unlimited resources
