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

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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

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Name the process through which free atmospheric nitrogen is converted into nitrates.

asked Aug 23, 2021 in Biology Form 3 by anony mous

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What is meant by the term ecology

asked Aug 23, 2021 in Biology Form 3 by anony mous

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What is meant by the term ecosystem

asked Aug 23, 2021 in Biology Form 3 by anony mous

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What is meant by the term habitat

asked Aug 23, 2021 in Biology Form 3 by anony mous

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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

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Other than using the quadrant, give two methods of estimating population of grass.

asked Aug 23, 2021 in Biology Form 3 by anony mous

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Describe the three characteristics of a population.

asked Aug 23, 2021 in Biology Form 3 by anony mous

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Name the causative agents of the following diseases in humans. Typhoid Amoebic, dysentery

asked Aug 23, 2021 in Biology Form 3 by anony mous

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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

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State four ways of controlling schistosomiasis.

asked Aug 23, 2021 in Biology Form 3 by anony mous

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What is the role of fungi in an ecosystem?

asked Aug 23, 2021 in Biology Form 3 by anony mous

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Name two benefits that a parasite derives from the host

asked Aug 23, 2021 in Biology Form 3 by anony mous

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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

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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

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Explain five abiotic factors that affect living organisms in an ecosystem.

asked Aug 19, 2021 in Biology Form 3 by anonymous

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The scheme below shows how energy is transmitted from the sun into the ecosystem.

asked Aug 19, 2021 in Biology Form 3 by anonymous

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2 answers

What is parthenocarpy?

asked Aug 19, 2021 in Biology Form 3 by anonymous

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1 answer

State two roles of progesterone.

asked Aug 19, 2021 in Biology Form 3 by anonymous

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