- Teleost fishes have scales named as ___________________.
a. Placoid
b. Ganoid
c. Cycloid
d. Ctenoid - Which one has the thinnest epidermis?
a. Lizards
b. Whales
c. Ungulates
d. Birds - Which one of the following epidermal glands are found in Aves?
a. Sweat glands
b. Sebum glands
c. Preen glands
d. All - Which one lacks any blood vessel?
a. Cartilage
b. Bones
c. Muscles
d. Every organ has a blood vessel - After muscle contraction during relaxation, Ca++ moves back into the sarcoplasmic reticulum by _.
a. Active transport
b. Passive transport
c. Endocytosis
d. Facilitated Transport - The diameter of some neurons of the fishes & Amphibians, which activate skeletal muscle for rapid escapes may be up to _ µm.
a. 10
b. 20
c. 25
d. 50 - Which one of the meninges, forms the middle layer?
a. Choroid
b. Dura matter
c. Pia matter
d. Arachnoid - The controlling center of pleasure and punishment is?
a. Hypothalamus
b. Pons
c. Amygdala
d. Medulla oblongata - The roof of the midbrain is called __.
a. Carpus callosum
b. Optic chiasma
c. Hippocampus
d. Center for reflex - Which one of the following nerve innervate tongue muscle?
a. Vagus
b. Abducens
c. Glossopharyngeal
d. Hypoglossal - Neuromasts are hair-cell receptors involved in ________,
a. Chemoreception
b. Photoreception
c. Mechanoreception
d. Phonoreception - Which one of the following is a component of the middle ear?
a. Vestibule
b. Semicircular canals
c. Cochlea
d. None - Which one of the following lacks vomeronasal organs?
a. Snakes
b. Lizards
c. Turtles
d. All have - Which one is incorrect in the case of a median eye?
a. Also called the parietal eye
b. Develop as an outgrowth on optic tectum
c. Tuatara have incomplete median eye
d. All are correct - In amphibian blood leave the heart through __.
a. Sinus venosus
b. Truncus arteriosus
c. Aorta
d. Systemic arteries - Incorrect in the case of pheromones?
a. Require medium for transport
b. Affect members of same species
c. Work only in short distances
d. All are correct - In crayfish, x-organs are present ___________.
a. In head
b. At the base of maxillae
c. Eye stalk
d. Nears pleopods - Hormone involved in reproductive migrations is __________________.
a. TSH
b. Thyroxin
c. Oxytocin
d. Prolactin - Which one is incorrect in the case of ADH?
a. Steroid hormone
b. Elevate blood pressure
c. Increase water absorption
d. All are correct - Which one is produced from neurohypophysis?
a. ADH
b. Oxytocin
c. Both
d. None - Periodic activities are regulated by _.
a. Thymosin
b. CRH
c. Melatonin
d. Catecholamines - The somatostatin is released from?
a. Alpha cells
b. Beta cells
c. Delta cells
d. F cells - Amphibians having the largest RBCs are __.
a. Cyclorana
b. Hyla
c. Bufo
d. Amphiuma - Histamine and heparin produced by __.
a. Lymphocytes
b. Monocytes
c. Basophils
d. Eosinophils - Book lungs are the characteristics of ____.
a. Insects
b. Arachnids
c. Pulmonates
d. All have
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Answer Keys – PPSC Biology – Quiz 4 – Animal`s Forms and Functions