Given below is a table comparing the effects of sympathetic and parasympathetic nervous system
for four feature (a-d). Which one feature is correctly described

• Feature	Sympathetic nervous system	Parasympathetic nervous system
  a) Salivary glands	Stimulate Secretion	Inhibit Secretion

• b) Pupil of the eye

  Dilate

  Constricts

• c) Heart rate

  Decreases

  Increases

• d) Intestinal peristalsis

  Stimulates

  Inhibits

Which one of the following animals is correctly matched with its one characteristic and the taxon

• Animal	Characteristic	Taxon
  Millipede	Ventral nerve cord	Arachnida

• Duckbill platypus

  Oviparous

  Mammalia

• Silverfish

  Pectoral and pelvic fin

  Chordata

• Sea anemone

  Triploblastic

  Cnidaria

3.

All mammals without any exception are characterised by

• viviparity and biconcave red blood cells 

• extra-abdominal testes and a four chambered heart

• heterodont teeth and 12 pairs of cranial nerves

• a muscular diaphragm and milk producing
  glands.

Which one of the following pairs of the kind of cells and their secretion is correctly matched

• Oxyntic cells

  a secretion with pH between 2.0 and 3.0

• Alpha cells of islets of Langerhans

  secretion that decreases blood sugar level

• Kupffer cells

  a digestive enzyme that hydrolyses nucleic acids

• Sebaceous glands

  a secretion that evaporates for cooling

Examine the diagram of the two cell types A and B given below and select the correct option

     A                B

• Cell A is the rod cell found evenly all over retina

• Cell A is the cone cell more concentrated in the fovea central is

• Cell B is concerned with colour vision in bright light

• Cell A is sensitive to low light intensities

A cricket player is fast chasing a ball in the field. Which one of the following groups of bones are directly contributing in this movement

• Femur, malleus, tibia, metatarsals

• Pelvis, ulna, patella, tarsals

• Sternum, femur, tibia, fibula

• Tarsals, femur, metatarsals, tibia

A lizard-like member of reptilia is sitting on a tree with its tail coiled around a twig. This animal could be

• Hemidactylus showing sexual dimorphism

• Varamus showing mimicry

• garden lizard (Calotes) showing camouflage

• Chamaeleon showing protective colouration

The figure given below shows three velocity substrate concentration curves for an enzyme reaction. What do the curves a, b, and c depict respectively

• a-normal enzyme reaction,
  b-competitive inhibition,
  c-non-competitive inhibition.

• a-enzyme with an allosteric modulator added,
  b-normal enzyme activity,
  c-competitive inhibition

• a-enzyme with an allosteric stimulator,
  b-competitive inhibition added
  c-normal enzyme reaction

• a-normal enzyme reaction,
  b-non-competitive inhibitor added
  c-allosteric inhibitor added

A person who shows unpredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from

• borderline personality disorder (BPD)

• mood disorder

• addictive disorder 

• schizophrenia.

The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

• squamous epithelium

• columnar epithelium

• ciliated epithelium

• cubical epithelium