1. All living things are made of cells.
2. Cells are the basic structural and functional unit of organisms.
3. All cells come from per-existing cells.
100
What are the living parts of an ecosystem called?
Biotic
100
What is an atmosphere free of oxygen?
Anoxic
100
Australia was once part of this landmass 100 mya.
Gondwana
100
The variable that is changed in an experiment.
Independent variable
200
What consists of a hydrophobic tail and a hydrophilic head?
Phospholipid bilayer
200
What is an adaptation?
A characteristic that increases an organisms likelihood of survival and reproduction.
200
What is the largest classification grouping?
Kingdom
200
These two scientists that were involved in the creation of Darwin's theory of Natural selection.
Darwin and Wallace
200
This verb means to support an argument or conclusion.
Justify
300
What is the role of teeth?
To increase the surface area of complex foods for exposure to digestive enzymes.
300
What shows the amount of biomass through each level of a food chain?
Biomass pyramid
300
What is a flowchart that uses two alternatives at each level in order to classify organisms?
A dichotomous key
300
Name four mechanisms for seed dispersal.
Wind, bird, insect, fire.
300
An experiment is considered this when the same experimental method yields the same or similar results when repeated.
Reliable
400
What are small breathing pores in an insect called?
Spiracles
400
What is used to measure the distribution of a species in an ecosystem?
Transect
400
Who are the 2 scientists that experimented to demonstrate that the conditions on early Earth?
Urey and Miller
400
In an examination of human skin cells, it was found every nucleus contained 46 chromosomes. This means that the haploid number is:
23
400
To make a judgment of value, quality, outcomes, results or size.
Assess
500
An electron micrograph of a mitochondrion shows areas of highly folded membranes. Explain how the folding is related to its function.
Mitochondria are highly folded organelles that are the sites of respiration within cells. The folds increase the surface area which allows for a greater number of chemical reactions to occur at the same time, making the process very efficient.
500
An abiotic factor that has a large impact on aquatic ecosystems but a negligible impact on terrestrial ecosystems is:
Buoyancy
500
What are the major stages in the evolution of living things? (
What are the contraction of rainforests and the spread of sclerophyll vegetation and grasslands directly related to?
Australia’s changing climate as the continent moved north.
500
Identify the independent and dependent variables and at least 2 controlled variables.
"The time it takes to run a kilometre depends on the amount of exercise a person gets"
Independent - Amount of exercise a person gets
Dependent - The time taken to run a kilometre
Controlled - gender, age, surface to run on etc