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WorksheetsUnit 3 Topic 1 Recap
Total questions: 22
Worksheet time: 1hrs 7mins
A group of the same species that live in a particular area at the same time is know as
A community
A population
An ecosystem
A niche
Define an ecosystem.
You are designing an experiment where you want to measure the biodiversity of a desert in which the only plant is spinifex. The best measure of biodiversity in this case is
Species richness
Relative species abundance
Percentage cover
Simpson's Diversity Index
What is the difference between species richness and species evenness?
Calculate species richness for the given data set.
Describe the benefit of using Simpson's diversity index over Species Richness as a measure of biodiversity.
Use the data set to calculate Simpson's Diversity Index (SDI).
Two different ecosystems were sampled and the SDI calculated. Ecosystem 1 SDI = 0.9 whereas Ecosystem 2 SDI = 0.3. Infer which ecosystem has greater biodiversity.
Ecosystem 1 has greater biodiversity because 0.9 < 0.3
Ecosystem 1 has greater biodiversity because 0.9 > 0.3
Ecosystem 2 has greater biodiversity because 0.9 < 0.3
Ecosystem 2 has greater biodiversity because 0.9 > 0.3
What is the commonly accepted threshold for statistical significant in a t-test?
0.1
0.5
0.05
0.005
Draw your favourite animal
What is an example of a change that could occur within an ecosystem on a temporal scale?
Change of season causing influx of migratory birds
Change of day causing absence of diurnal species and presence of nocturnal species
Lang clearing causing absence of previously abundance species
All of the above
Identify one factor that could limit the health of an ecosystem.
Write the Linnean taxa in order from the most broad group to the most narrow group.
The table shows the DNA sequence of a mitochondrial gene of two insect species (A and B). Calculate the % similarity between species A and species B.
How many clades does F belong to?
1
2
3
4
Which other species is most closely related to F?
D
E
G
H
Which other species share a common ancestor with F?
E only
E, G and H only
D, E, G and H only
A, B, C, D, E, G, H (all)
1. Which of the following species is most closely related to Cymbidium sinense?
Habenaria delavayi
Paphiopedilum armeniacum
Which of the following species is most closely related to Cypripedium singchii?
Apostasia shenzhenica
Vanilla shenzhenica
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