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WorksheetsBIOLOGY F5 KSSM C9.2
Total questions: 15
Worksheet time: 8mins
Which of the factors listed below does not affect the distribution of paddy population.
temperature
breeding site
light
water
A farmer plants an orchard of apple trees. What is the most likely dispersion pattern of that population
random
clumped
uniform
scattered
The picture represents a sunny, dry desert. Which factor most likely limits the desert’s carrying capacity for plant life?
the number of animals that eat plants
the availability of space to grow
the amount of sunlight
the availability of water
A population of salamanders that live in a river require clear, fresh water to survive. New housing developments have caused tons of sediment to muddy the river. Which of these most likely will happen to the salamander population?
The salamanders will decrease in number because of the water quality.
The salamanders will move across land to another river.
The salamanders will quickly adapt to living in the muddy water.
The salamanders go live on land.
Nesting birds often space themselves evenly from other nests. This pattern is called
random
clumped
uniform
This is the most commonly seen distribution pattern. Example: wolves. This is usually because there are resources found in particular areas and the organisms need more space to survive.
random
clumped
uniform
Which area is more densely populated?
polar climate
temperate climate
What is a square called that we use to sample populations?
grid
quarter
square
quadrat
Diagram below shows the distribution of white mold, yellow mold and black mold on a moist bread which was kept in a dark condition at room temperature after 12 days.
What is the percentage of coverage of black mold on the bread?
15%
60%
30%
10%
Aini carried out a study on the population of Mimosa pudica in the school’s field. She used the quadrat sampling technique in the study. The area of each quadrat is 1 m².
The results is shown in table below.
The percentage coverage of grass P in the school’s field is …
44%
20%
65%
88%
Diagram below shows the result of an activity to determine the population size of dandelion in the school field.
What is the frequency of dandelion?
50.2%
30%
44.5%
66.7%
What type of population would you measure using a quadrat?
Limpets were found in 25 out of 50 quadrats. What is coverage percentage of limpets?
50%
25%
75%
100%
Table below shows the number of plant A present in 10 different quadrats, each quadrat measuring 1 m x 1 m.
Calculate the density of plant A.
6/m2
5/m2
4.3/m2
6.1/m2
Table below shows the number of frogs caught by capture- release-recapture method.
Estimate the population size of frog
11 frogs
60 frogs
80 frogs
240 frogs
