Molluscan kidney
See Answer →Green gland of crustacean
See Answer → Select the four true statements:
i) Arteries generally have a larger diameter than veins.
ii) Capillaries are made up of a single layer of endothelial cells
surrounded by a basal membrane.
iii) The arteries near the heart are more elastic and dampen the
oscillation in blood flow.
iv) Whole blood is more viscous than plasma because of the presence of
blood cells.
v) The maximum pressure during a heart beat is systolic pressure.
vi) The maximum pressure during a heartbeat is known as diastolic
pressure.
How is carbon dioxide transported when it is released by the tissues into the blood in mammals? What is the role of carbonic anhydrase?
See Answer →What are the end-products of food that can be absorbed by the body? Explain how absorption of fats differs from absorption of proteins and sugars
See Answer →What prevents the epithelial lining of the walls of the stomach of animals from being digested by the HCI secreted by it?
See Answer →Give one distinguishing morphological feature of each of the following orders:
i) Cingulata
ii) Sirenia
iii) Primate
See Answer →Differentiate between Artiodactyla and Perissodactyla.
See Answer →State whether the following statements are True (T) or False (F).
i) Elephants are the largest land animals.
ii) Blubber is found in monkeys.
iii) Carnivores are grass eating mammals.
iv) Kangaroos are egg laying mammals.
v) Monotremes are viviparous.
See Answer →Explain the role of drag and thrust in bird flight
See Answer →Where was the Archaeopteryx discovered? Give reasons for the Archaeopteryx being considered the connecting link between reptiles and birds.
See Answer →How do crocodiles and alligators differ from each other?
See Answer →c) Describe two anatomical features of lizards (including legless members) that distinguish them from snakes
See Answer →b) How are tuataras different from lizards?
See Answer →. a) Describe the distinguishing features of turtles of Order Testudines.
See Answer →ii) Distinguish between anurans and urodeles.
See Answer →How do the freshwater teleosts overcome their osmoregulatory challenges?
See Answer →Why do marine teleosts need to drink large amounts of seawater?
See Answer →Correct the given statements.
i) Presence of cranium and paired appendages is a characteristic feature of Agnatha.
ii) In jawless fishes heart is a single chambered structure.
iii) Development in hagflshes includes a larval stage called ammocoetes.
iv) Special mucous glands are present in Petromyzon