IGCSE O Level Biology MCQs – Mock Test 290

Human Respiration MCQs with Answers PDF Download – Test 290

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Download the "Human Respiration MCQ" App (iOS & Android): Carbon dioxide (CO₂) can; MCQ with answers: be lost through root hairs, not be lost by root, not be produced in tissue respiration, and enter the root through root hairs. Practice Respiration in Biology Questions and Answers, Google Book to download free chapter to access learning content.

Human Respiration MCQ – Mock Test 290 PDF Download

MCQ 1446: Carbon dioxide (CO₂) can:

not be lost by root
be lost through root hairs
enter the root through root hairs
not be produced in tissue respiration

MCQ 1447: DDT (dichloro-diphenyl-trichloroethane: C₁₄H₉Cl₅) is a form of:

insecticide
herbicide
pesticides
parasiticides

MCQ 1448: In cirrhosis, damaged liver cells are replaced by:

toxins like benzoic acid
large amount of peptones
fibrous tissues
fibrous muscles

MCQ 1449: If genetic material from same species is used or species that can naturally breed with the host then the organism generated is:

clone genes
transgenic
cisgenic
cross genes

MCQ 1450: In tubifax worms, the tolerance range for oxygen:

is very low
is very high
is zero
is 100%

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