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Module 3 and 4 Ecology and Evolution Flashcards | StudBud
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Module 3 and 4 Ecology and Evolution
Module 3 and 4 Ecology and Evolution
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Biology preliminary questions #biology #preliminary #module3 #module4
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25 cards
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Questions
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Answers
1
Prokaryotic cells have:
No membrane bound organelles
All of the above
No true nucleus
DNA arranged in a nucleoid area
2
What sort of symbiotic relationship benefits one organism while doing no harm to the other?
Predation
Commensalism
Parasitism
Mutualism
3
How has Australia's climate changed over time?
it has become hotter and drier
It has moved further north
It has lost rainforests and gained scleropyll plants
It has become colder and wetter
4
Biodiversity is...
All of the above
The number of ecosystems or habitats in an area
The number of species in an area
The different genes or traits available in a population
5
Which provides geological evidence for oxygen in the atmosphere 2 billion years ago?
all of them
deep sea hydrothermal vents
banded iron formations
fossil stromatolites
6
What do we call all the possible varieties of a gene within a group of interbreeding organisms?
Variation
Survival of the fittest
Gene pool
Chromosomes
7
Which is the correct way to write using the binomial system of nomenclature
Genus Species
Genus species
Genus species
Species genus
8
It is difficult to find evidence on the original of life on Earth because:
the earliest known fossils are all the same
many early life forms were soft bodied so formed few fossils
dinosaur fossils are expensive
the early ocean did not form until 2000 million years ago
9
Which is an example of technology that helps understanding of micro-evolution of organisms such as the platypus
DNA sequencing analysis
Comparative embryology
The pentadactyl limb
Electron microscope
10
Index fossils are NOT
Abundant all over the world
From a short time period only
Useful for dating rock layers
From aquatic organisms only
11
Which of the following does not support Australia's origins in the supercontinent Gondwana?
the presence of humans on all associated continents
the position of mid-ocean ridges and plate spreading zones
matching continental margins
fossil evidence of species: Glossopteris and Gangamopteris
12
DNA sequencing....
Is the same as DNA hybridisation
Compares the sequence of bases in a gene
Compares the sequence of amino acids in a gene
Can only occur in eukaryotic organisms
13
Which of these was
NOT
a significant result following the change from anoxic to oxic atmosphere
Move from aquatic to terrestrial
Decreased protection from UV radiation
More complex organisms due to aerobic respiration
Formation of the ozone layer
14
Which of these shows an extinct - extant species relationship
Glossopteris and banksia
Procoptodon and kangaroo
Diprotodon and koala
Dinosaurs and humans
15
Scientists believe extinction of the megafauna is due to
Arrival of humans
Dinosaurs ate them
Both climate change and arrival of humans
Climate change
16
Evolution following quick bursts of change followed by long periods of stability is..
Punctuated equilibrium
Natural selection
Gradualism
Convergent evolution
17
Distantly related organisms evolving similar features in similar environments is due to..
Divergent evolution
Predation
Darwin and Wallace
Convergent evolution
18
The study of fossils is called:
Palaeogeology
Palaeontology
Palaeobiology
Geology
19
How old is the earth?
4.6 billion years old
1.5 billion years old
3.5 billion years old
2.5 billion years old
20
What do we call a change in the environment which puts constraints on organisms?
Competition
Variation
Selective pressure
Evolution
21
Name another species of megafauna studied along with Procoptodon and Megalania
Diprotodon
Thylacine
Cassowary
Rattus rattus
22
Before photosynthetic prokaryotes evolved, which was not present in the Earth’s atmosphere?
Oxygen
Hydrogen
Water vapour
Ammonia
23
Which is NOT an example of an invasive introduced species..
Feral pigs
Cows
Camels
Cane toad
24
The pentadactyl limb is an example of...
Biogeography
A homologous structure
An analogous structure
Natural selection
25
What do we call a group of similar organisms which are capable of reproducing to produce fertile offspring?
homologous
species
ecosystem
community
