Outer surface of bones is covered by a dense layer of connective tissue, called as ___________ ?
(A) Periosteum
(B) Woven bone
(C) Epithelium lining
(D) Connective lining
Insects responsible for transmitting diseases are called___________?
(A) Drones
(B) Vectors
(C) Hybirds
(D) None of these
Term the time during which an orgnism is present in the body before causing disease ?
(A) Rest period
(B) Incubation period
(C) Sleeping period
(D) Inclubation time
__________is a condition in which there is an absence of oxygen supply to an organ’s tissues?
(A) Anoxia
(B) Anorexia
(C) Hypoxia
(D) Enuresis
Study of interaction of living organisms with other organisms and their environment relates with ___________ ?
(A) Botany
(B) Ecology
(C) Social biology
(D) Pharmacology
Dorsal root of spinal nerves contain only __________ ?
(A) Effectors neurons
(B) Receptor neurons
(C) Stimulators
(D) Detector neurons
The higher animals have special organs for exchange of gases as their skin is ___________ ?
(A) Thin
(B) Thick
(C) Soft
(D) Hard