The best time to measure an animal's basal metabolic rate is when the animal a is resting and has just completed its first meal of the day. b has recently eaten a sugar-free meal. c is resting and has not eaten its first meal of the day. d has not consume any water for at least 48 hours.

The answer is; C

Basal metabolic rate is the rate of energy (in joules) being used up by the body when it is at rest. Basal metabolic rate is measured post-absorptive state (meaning food in the digestive system has been absorbed and there is no digestion). It is necessary that BMR is measured when the digestive system is not digesting since, otherwise, the body would not really be resting.

answer: the answer is b

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.