Diphtheria is an acute an upper respiratory tract illness and infectious disease caused by the bacteria Corynebacterium diphtheriae. It is spread by direct physical contact or breathing the aerosolized secretions of infected individuals.

Correct Option: B

Diphtheria is an acute an upper respiratory tract illness and infectious disease caused by the bacteria Corynebacterium diphtheriae. It is spread by direct physical contact or breathing the aerosolized secretions of infected individuals.

Carotene mostly affects the colour of fat. Since milk is comprised of around 3.5% milk fat, a dairy cow that is grass-fed tends to produce yellow milk, over a dairy cow that is not grass-fed and fed primarily a mix of hay, silage and grain.

Correct Option: D

Carotene mostly affects the colour of fat. Since milk is comprised of around 3.5% milk fat, a dairy cow that is grass-fed tends to produce yellow milk, over a dairy cow that is not grass-fed and fed primarily a mix of hay, silage and grain.

Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain.

Correct Option: C

Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain.

Calorific value refers to calories or thermal units contained in one unit of a substance and released when the substance is burned. Fats have higher calorific value than other food items. The calorific value of different food items (per 100 gram) are: Butter: 740; Cheese: 310; Sugar: 405; and Apple: 45.

Correct Option: A

Calorific value refers to calories or thermal units contained in one unit of a substance and released when the substance is burned. Fats have higher calorific value than other food items. The calorific value of different food items (per 100 gram) are: Butter: 740; Cheese: 310; Sugar: 405; and Apple: 45.

Unlike in multi-cellular organisms, increases in cell size (cell growth and reproduction by cell division) are tightly linked in unicellular organisms. Bacteria grow to a fixed size and then reproduce through binary fission, a form of asexual reproduction. Under optimal conditions, bacteria can grow and divide extremely rapidly, and bacterial populations can double as quickly as every 9.8 minutes.

Correct Option: C

Unlike in multi-cellular organisms, increases in cell size (cell growth and reproduction by cell division) are tightly linked in unicellular organisms. Bacteria grow to a fixed size and then reproduce through binary fission, a form of asexual reproduction. Under optimal conditions, bacteria can grow and divide extremely rapidly, and bacterial populations can double as quickly as every 9.8 minutes.