Kingdom Phylum Class Order Family Genus and Species.
1 of 20
What is the importance of binomial nomenclature.
It avoids confusion as each organism has a unique name. It is universally recognised.
2 of 20
Define a species
A group of similar organisms that can interbreed to produce fertile offsprings.
3 of 20
Define a Hybrid
When organism from different species interbreed to produce an infertile offspring.
4 of 20
Why are Hybrid's infertile?
They contain an odd number of chromosomes.
5 of 20
What is phylogeny?
The study of the evolutionary relationships between organisms.
6 of 20
What is a homologous structure?
An organ or a bone that appers in different organism that demonstrate that they share a common ancestor.
7 of 20
What is divergent evolution?
Organisms that have evolved from the same common ancestor, but due to a geographical isolation and random mutations they bcame separate species.
8 of 20
What is convergent evolution?
When organims have evolved to have similar charactersitics due to them being adapted to the similar environments, but they don't share any evolutionary links.
9 of 20
A harmless snake mimicks the colours of a venomous snake. What type of adaptation is this?
Anatomical
10 of 20
State the type of evolution that explains why bats and birds have wings.
Convergent evolution
11 of 20
State 3 types of evidence for evolution
Fossil records, Biochemistry and comparing anatomy.
12 of 20
How does genetic variation arise within a species?
Independent assortment and crossing over of DNA during meiosis, Mutations, Alleles .
13 of 20
What is the difference between intraspecific and interspecific variation?
Intraspecific variation is the variation between organisms of the same species and Interspecific variation is variaation between organisms of different species.
14 of 20
State a feature that shows discontinuous variation
Blood group
15 of 20
State a feature that represents continous variation
Height
16 of 20
Name two human characteristics with variation that caused solely by the environment
ear piercing and tatoo.
17 of 20
Name two human characteristics with variation caused solely by genetics.
Eye colour and blood group.
18 of 20
What is an analogous structure?
When organisms have similar characteristics that have adapted to perform the same function but have different genetic origin.
19 of 20
What is a selection pressure?
Factors that affect the organisms chance of survival or reproductive success.
20 of 20
Other cards in this set
Card 2
Front
What is the importance of binomial nomenclature.
Back
It avoids confusion as each organism has a unique name. It is universally recognised.
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