Question

Define the following terms :
(i) Peristalsis
(ii) Omnivore
(iii) Pylorus
(iv) Kilocalorie
(v) Basal metabolic rate

Answer 1

1. Peristalsis: Peristalsis is a radially symmetrical contraction and relaxation of muscles that propagates in a wave down a tube, in an anterograde direction, so as to move food to different processing stations in the digestive tract.
   
2. Omnivore: Omnivore is a consumption classification for animals that have the capability to obtain chemical energy and nutrients from materials originating from plant and animal origin.
   
3. Pylorus: The pylorus is the furthest part of the stomach that connects to the duodenum.
   
4. Kilocalorie: A unit of energy of one thousand calories (equal to one large calorie). One (1) kilocalorie is the same as one (1) Calorie (upper case C). Generally speaking, 1 kilocalorie = 1000calories (definition here).
   
5. Basal metabolic rate: (BMR) is the rate of energy expenditure per unit time by endothermic animals at rest.