IGCSE Biology Paper-3: Specimen Questions with Answers 123 - 125 of 230
Question number: 123
Write in Short
Fish and tree frog are at the pictures below. Write the adaptation under each animal, and tell how it helps the living thing survive.
Figure Shows a Picture of Fish
Explanation
Fish have gills. Up to 80 % of a fish’s body is made of muscle. Fish muscles are packed along its sides. That is where a fish gets most of its swimming power. Fishes are generally covered with scales
Figure Shows a Picture of Tree Frog
Adaptation of tree frogs is its beautiful coloration as they spend most of their days camouflaged on the underside of a leaf. Bright colors are hidden by closing its eyes and tucking its feet beneath its body while sleeping. If alarmed by predator, the sudden appearance of these colors may disinterest the predator. They have suction cups on their toes to enable it to climb trees and on leaves
Passage
Picture shows a food web.
Figure Shows a Typical Food Web
Question number: 124 (1 of 2 Based on Passage) Show Passage
Write in Short
If all the wood mice were killed?
Explanation
Population of corn will increase
Question number: 125 (2 of 2 Based on Passage) Show Passage
Write in Short
If all the wood mice were killed why would the number of foxes likely decrease?
Explanation
Fox feed wood mouse in such food web; if wood mice were, killed foxes will get less food. So they will decrease in number.