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NECTA Biology – Tanzania

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Question 291

What is the primary cause of deforestation in many African countries?
EcologyHuman Impact on the Environmenthard

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Question 292

During photosynthesis, which gas is absorbed and which gas is released by green plants?
Respiration and photosynthesisPhotosynthesiseasy

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Question 293

In Mendel's experiments, what ratio of phenotypes was observed in the F2 generation for a monohybrid cross?
GeneticsMendelian geneticsmedium

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Question 294

What is the main role of haemoglobin in the human body?
Human physiologyCirculatory systemmedium

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Question 295

In cellular respiration, which molecule acts as the final electron acceptor in the electron transport chain?
Respiration and photosynthesisCellular respirationhard

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Question 296

In an ecosystem, which organism is a primary consumer?
EcologyFood chains and food webshard

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Question 297

During photosynthesis, which gas is taken in by the plant and which gas is released?
Respiration and photosynthesisPhotosynthesis and gas exchangeeasy

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Question 298

In genetic inheritance, what is the expected genotype ratio of offspring from a heterozygous dominant (Aa) crossed with a homozygous recessive (aa) individual?
GeneticsPatterns of inheritance and Punnett squareshard

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Question 299

Which organelle is primarily responsible for producing energy in a cell through the process of respiration?
Cell biologyCell biologyeasy

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Question 300

In human reproduction, which hormone is primarily responsible for triggering ovulation?
ReproductionReproductionmedium

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