Lesson 4.6.3.2
4.6.3.2 Fossils Quiz: AQA Combined Science, Unit 6
20 questions
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Lesson 4.6.3.2, Fossils: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 6: Inheritance, variation and evolution, written with Revision Ninja.
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The 20 questions
-
What are fossils defined as the remains of?
- Ancient organisms
- Synthetic polymers
- Living species
- Igneous crystals
-
Why can some undecayed parts of organisms form fossils?
- too much oxygen
- decay conditions absent
- high temperature
- rapid bacterial growth
-
What forms when decaying organism parts are replaced by minerals?
- soft tissue preservation
- surface footprint trace
- mineral replacement
- hollow mould fossil
-
Which of these is classified as a preserved trace fossil?
- intact shell
- preserved bone
- petrified tooth
- animal footprints
-
Why are many early forms of life poorly represented in the fossil record?
- Buried deep
- Soft-bodied
- Too heavy
- Eaten whole
-
What has mainly destroyed the traces of early life?
- geological activity
- ocean salt
- volcanic gases only
- photosynthesis
-
Why are scientists uncertain about how life began on Earth?
- lack of liquid water
- constant volcanic heat
- too many soft organisms
- fossil record incomplete
-
What do fossils primarily show scientists about how life has developed?
- organims changed over time
- all organisms remain identical
- life started simultaneously
- species never became extinct
-
What do changing fossil shapes across different rock layers demonstrate?
- Constant species
- Evolution over time
- Rock age only
- Random mutations
-
What do branching points on an evolutionary tree indicate that species share?
- the same habitat
- equal population size
- common ancestor
- identical DNA sequence
-
A fossilised dinosaur footprint in rock is an example of what?
- a preserved trace
- a mineral replacement
- a body fossil
- an undecayed tissue
-
Which of these is a classic example of a trace fossil?
- frozen teeth
- animal burrows
- petrified wood
- preserved bones
-
Which feature makes organisms much less likely to form fossils?
- Soft tissues
- Large teeth
- Dense bones
- Hard shells
-
Which of these is categorised as a body fossil?
- footprint cast
- animal burrow
- mineralised bone
- rootlet trace
-
What is the primary reason why the fossil record has significant gaps?
- Solar radiation
- Rapid freezing
- Geological activity
- Acid rain
-
What do fossils found in older rock layers provide evidence for?
- Modern clones
- Identical species
- Static biology
- Organism changes
-
Which environmental condition best helps form fossils?
- rapid burial
- warm surface air
- constant scavenging
- high oxygen exposure
-
Which fossil type typically shows hard parts like teeth and bone preserved in rock?
- complete DNA
- living cells
- mineral replacement
- soft tissue
-
What do fossils help scientists track over millions of years?
- ocean salinity levels
- plate tectonic speeds
- evolutionary changes
- daily weather patterns
-
Which fossil type forms from animal footprints preserved in sediment?
- amber entrapment
- preserved trace
- mineral replacement
- frozen carcass
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