Sulphur dioxide (SO₂) is considered as the most serious single air pollutant causing health hazard, obstructing breathing. It always leads to airways inflammation, eye irritation, psychic alterations, pulmonary oedema, heart failure and circulatory collapse. It is also responsible for acid rain.

Correct Option: A

Sulphur dioxide (SO₂) is considered as the most serious single air pollutant causing health hazard, obstructing breathing. It always leads to airways inflammation, eye irritation, psychic alterations, pulmonary oedema, heart failure and circulatory collapse. It is also responsible for acid rain.

Digestion in Protozoa is carried on by several enzymes such as peptidase, proteinase, lipase, etc. For example, Insulin has important role in the glucose uptake of protozoa. However, protozoa lack amylase which is required for the digestion of fats and starch. It is due to the absence of amylase that protozoa such as amoeba cannot digest fats and starch.

Correct Option: D

Digestion in Protozoa is carried on by several enzymes such as peptidase, proteinase, lipase, etc. For example, Insulin has important role in the glucose uptake of protozoa. However, protozoa lack amylase which is required for the digestion of fats and starch. It is due to the absence of amylase that protozoa such as amoeba cannot digest fats and starch.

Motor skills are needed to control the movements of the different muscles in the human body. The frontal lobe plays a large role in voluntary movement. It houses the primary motor cortex which regulates activities like walking. The frontal lobes are also involved in problem solving, spontaneity, memory, language, initiation, judgement, impulse control, etc.

Correct Option: A

Motor skills are needed to control the movements of the different muscles in the human body. The frontal lobe plays a large role in voluntary movement. It houses the primary motor cortex which regulates activities like walking. The frontal lobes are also involved in problem solving, spontaneity, memory, language, initiation, judgement, impulse control, etc.

Photoperiodism is the physiological reaction of organisms to the length of day or night. The term “Photoperiodism” was coined to describe a plant’s ability to flower in response to changes in the photoperiod: the relative lengths of day and night. Because flowers produce seeds, flowering is crucially important for the plant to complete its life cycle.

Correct Option: D

Photoperiodism is the physiological reaction of organisms to the length of day or night. The term “Photoperiodism” was coined to describe a plant’s ability to flower in response to changes in the photoperiod: the relative lengths of day and night. Because flowers produce seeds, flowering is crucially important for the plant to complete its life cycle.

Mycology is the branch of biology concerned with the study of fungi. It includes the study of fungi’s genetic and biochemical properties, their taxonomy and their use to humans as a source for tinder, medicine, food, and entheogens, as well as their dangers, such as poisoning or infection

Correct Option: A

Mycology is the branch of biology concerned with the study of fungi. It includes the study of fungi’s genetic and biochemical properties, their taxonomy and their use to humans as a source for tinder, medicine, food, and entheogens, as well as their dangers, such as poisoning or infection