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Recent questions in Biology Form 3
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To estimate the population size of crabs in a certain lagoon, traps were laid at random 400 crabs were caught, marked and released back into the lagoon. Four days later traps were laid again and 374 crabs were caught. Out of the 374 crabs, 80 were found to have been marked.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
population estimation methods
capture-recapture method
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votes
1
answer
The chart below represents a food web. Use it to answer the questions that follow.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
energy flow in an ecosystem
food web
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votes
1
answer
Name the process through which free atmospheric nitrogen is converted into nitrates.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
nitrogen cycle
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votes
1
answer
What is meant by the term ecology
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
0
votes
1
answer
What is meant by the term ecosystem
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
concepts of ecology
ecosystem
0
votes
1
answer
What is meant by the term habitat
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
concepts of ecology
habitat
0
votes
1
answer
State two ways in which aerenchyma tissues in aquactic plants are adapted to their function.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
adaptations of plants to various habitats
0
votes
1
answer
Other than using the quadrant, give two methods of estimating population of grass.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
population estimation methods
0
votes
1
answer
Describe the three characteristics of a population.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
concepts of ecology
0
votes
1
answer
Name the causative agents of the following diseases in humans. Typhoid Amoebic, dysentery
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
human diseases
0
votes
1
answer
The diagram below represents a certain organism collected by a student at the sea shore.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
classification
main characteristics of the phyla arthropoda
0
votes
1
answer
State four ways of controlling schistosomiasis.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
human diseases
0
votes
1
answer
What is the role of fungi in an ecosystem?
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
0
votes
1
answer
Name two benefits that a parasite derives from the host
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
ecology
effects of the parasites on the hosts
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votes
1
answer
Name the field of science that specializes in the study of members that belong to the class insect.
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
classification
0
votes
1
answer
Study the diagram below and answer the questions that follow. What is the phylum X?
asked
Aug 23, 2021
in
Biology Form 3
by
anony mous
classification
0
votes
1
answer
Explain five abiotic factors that affect living organisms in an ecosystem.
asked
Aug 19, 2021
in
Biology Form 3
by
anonymous
ecology
0
votes
1
answer
The scheme below shows how energy is transmitted from the sun into the ecosystem.
asked
Aug 19, 2021
in
Biology Form 3
by
anonymous
ecology
0
votes
2
answers
What is parthenocarpy?
asked
Aug 19, 2021
in
Biology Form 3
by
anonymous
reproduction in plants
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votes
1
answer
State two roles of progesterone.
asked
Aug 19, 2021
in
Biology Form 3
by
anonymous
reproduction in humans
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