Which of the following neuron has a single long dendron?

A. Sensory neuron
B. Motor neuron
C. Associative neuron
D. None of these.

Which of the following has no central nervous system?

A. Hydra
B. MAN
C. Planaria
D. Cockroach

Which of the following are responsible for the detection of changes in environment?

A. Receptors
B. Neurons
C. Effectors
D. All of these

MSH is produced from___________?

A. Anterior pituitary
B. Median pituitary
C. Posterior pituitary
D. None of these

Acromegaly is caused due to oversecretion of____________?

A. Sth
B. Tsh
C. Acth
D. Thyroxin

Insulin and glucagons are __________ in nature.

A. Protein
B. Amino acid derivative
C. Polypeptide
D. Steroid

Insufficient secretion of iodothyroxine in adults causes____________?

A. Myxedema
B. Cretinism
C. Goiter
D. Exopthalmic goiter

Secretin is a hormone produced by___________?

A. Stomach
B. Liver
C. Pancreas
D. Duodenum

Grave’s disease is produced due to____________?

A. Undersecretion of thyroxin
B. Overproduction of thyroxin
C. Undersecretion of corticosteroids
D. Overproduction of corticosteroids

____________ was first to propose an objective definition of instinct.

A. Thorpe
B. Darwin
C. Pavlov
D. Kohler