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Worksheets10BS
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Natural selection takes…..
a)
Years
b)
10s of Years
c)
100s of Years
d)
1000s of Years
2.
Speciation begins with….
a)
Weather
b)
Separation
c)
Mating
d)
Lack of food
3.
Give an example of an organism humans have selectively bred
a)
Chickens
b)
Cattle
c)
Domestic Dogs
d)
Crops
4.
The biggest disadvantage of selective breeding is….
a)
Inbreeding
b)
Breeding
5.
give an example of discontinuous variation
a)
eye colour
b)
weight
c)
height
d)
number of tattoos
6.
Give an example of continuous variation
a)
eye colour
b)
weight
c)
height
d)
number of tattoos
7.
Give an example of inherited variation
a)
eye colour
b)
weight
c)
height
d)
number of tattoos
8.
How many axons does each neuron have?
a)
3
b)
2
c)
100s
d)
1
9.
What structures make up the the central nervous system?
a)
brain and cranial nerves
b)
spinal cord and spinal nerves
c)
brain and spinal nerves
d)
brain and spinal cord
10.
Round 19 to the nearest ten.
a)
10
b)
15
c)
20
d)
100
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