O Level

Biology MCQs

O Level Biology MCQs - Subtopic

O Level Biology Questions MCQ with Answers

O Level Biology Questions Multiple Choice Questions (MCQ) to solve o level biology questions quiz answers PDF worksheet, O level biology test for online courses. Practice effects of human activity on ecosystem Multiple Choice Questions and Answers (MCQs), "O Level Biology Questions" quiz questions and answers for free online classes. Learn soil erosion, conservation: renewable resources, deforestation and pollution test prep for online college courses.

"Desertification is caused due to" Multiple Choice Questions (MCQ) on o level biology questions with choices overgrazing, topsoil is eroded, rapid water evaporation from the soil, and all of above for free online classes. Solve o level biology questions quiz questions for merit scholarship test and certificate programs for GRE practice test.

MCQs on O Level Biology Questions

1.

Desertification is caused due to

overgrazing
topsoil is eroded
rapid water evaporation from the soil
all of above

2.

Breakage of hydrogen bonds in protein coils results in

activation of enzymes
denaturation of proteins
expedites the digestive system
inactivation of protein molecules

3.

Dietary imbalances cause

malnutrition
starvation
obesity
high cholesterol

4.

Advantages of seed dispersal includes

less spread of disease
plants colonizing new habitats
prevention of overcrowding of plants in same habitat
all of above

5.

Starch (C6H10O5)n is digested to form maltose (C12H22O11) through enzyme

maltase
amylase
diastase
sucrose