1. Linnaeus
2. c. Dense regular.
3. Collagen.
4. Yes. All vertebrates have notochord
which is replaced by vertebral column. But there are chordates other than vertebrates
(Urochordates and Cephalochordates).
5. (a) Tidal volume: Volume of
air inspired or expired during a normal respiration.
Residual volume: Volume of air remaining
in lungs after a forcible expiration.
(b) Vital capacity: Volume of air that can
breathe in after a forced expiration.
Total lung capacity: Total volume of air
in the lungs after a maximum inspiration.
6. (a) Hippocampus (Seahorse).
(b) Osteichthyes.
(c) Bony fishes, scales are cycloid, ctenoid
etc., gills covered by operculum.
7. a) i. Salivary amylase (Ptyalin).
ii. Lysozyme.
b) i. Small Intestine. ii. Stomach.
8. a) AB blood group has no antibodies.
So AB group persons can receive blood from other groups.
b) Hypertension, Coronary artery disease.
9. (a) Gnathostomata
(b) Cyclostomata
(c) Tetrapoda
(d) Osteichthyes
10. a) i. Glycosuria. ii.
Ketonuria
b) Diabetes mellitus
11. (a) A= Actin, B= Myosin
(b) A= G- actin, B= Meromyosin (HMM +
LMM)
12. (a) Glucagon
(b) Dwarfism
13. (a) A= Secondary structure
of protein, B= Tertiary structure of protein.
(b) Primary structure and quaternary
structure.
14.
|
Ammonotelic |
Ureotelic |
Uricotelic |
|
Bony
fishes Aquatic
amphibians |
Mammals Terrestrial
amphibians |
Birds Reptiles |
15. (a) Dog fish. It is true
fish. Others are not true fishes and are invertebrates.
(b) Saw fish. It comes under class
chondrichthyes. Others belong to osteichthyes.
(c) Sea hare. It belongs to Mollusca. Others
are echinoderms.
16.
17. (a) Electrocardiograph
(b) P wave: Depolarization of atria.
T wave: Ventricular repolarization.
(c) It is used to diagnose heart diseases.18. (a) Walls of blood vessels
and lung alveoli.
(b) Cuboidal (cubical) epithelium.
(c) Secretion and absorption.
(d) Lining of stomach and intestine.
(e) Ciliated epithelium.
(f) Movement of particles.