A condition in which body's internal environment remains relatively constant within limits is called :

• homeostasis

• hemostasis

• hematoma

• haemopoiesis

Which of the following structure in Pheretima posthuma plays the role of the liver of vertebrates ?

• Calciferous glands

• Gland cells

• Chloragogen cells

• Cliteller cells

Body cavity of adult Ascaris is :

• haemocoel

• amphicoel

• pseudocoel

• schizocoel

Thyroid deficiency in infant leads to :

• hypothyroidism

• myxoedema

• cretinism

• thyrotoxicosis

The parasphenoid bone in frog forms :

• base of cranium

• floor of cranium

• dorsal side of cranium

• dorsolateral side of cranium

Kuhne:

• discovered parathyroid

• coined the term enzyme

• coined the term gene

• discovered enzyme

Mammalian prolactin is secreted by :

• adenohypophysis

• neurohypophysis

• adrenal cortex

• adrenal medulla

Which of the following is not found in Hydra ?

• Epithelio-muscular cells

• Cnidocyte

• Choanocyte

• Nerve cells

Which of the following symmetry is found in adult sea-anemone ?

• Radial

• Biradial

• Bilateral

• Spherical

Glomerular filtrate is

• blood minus blood corpuscles and plasma protein

• blood minus corpuscles

• mixture of water, ammonia and corpuscles

• urine