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0136. Adaptation is a a. Short term phenomena. b. Long term phenomena c. Disability to an organism d. Sudden process
Answer: b Explanation: Self-explanatory
0136. Which of the following is better suited to the desert habitat? a. b. Nocturnal animals Bears c. Short animals d. Fibrous plants
Answer: b Explanation: Desert life is less harsh during the night.
0137. Which of the following animals is adapted to cold habitat? a. Tiger b. Yak C. Lion d Camel
Answer: b Explanation: Yak has thick coat of hairs to protect it from the cold.
0138. Why do trees found in mountains have a cone shape? a. For protection from sun. b. For protection from winds c. So that snow can slide off easily over the branches d. So that they attain more height
Answer: c Explanation: Self-explanatory
Q140. Which of the following organisms show adaptation? 1. Plants 2 Animals 3 Microorganisms Choose the correct code a. b. 2 only 1 only C. 2 and 3 only d. 1,2 and 3
Answer:d Explanation: All organisms show adaptation
0141. Which of the following organisms do not have gills? 1. Whales 2. Dolphin:s 3. Fishes Choose the correct code. a. 1 only b. 2 only c. Both 1 and 2 d. All of these have gills
Answer: c Explanation: whales and dolphins don't have gills.
Answer:d Explanation: whales and dolphins don't have gills. They breathe in air through nostrils or blowholes that are located on the upper parts of their heads. This allows them to breathe in air when they swim near the surface of water. They can stay inside the water for a long time without breathing. They come out to the surface from time to time, to breathe in air. long time withoutcome out to the surface from
Q144. Why are leaves narrow and often divided in aquatic plants? a. Because need for food is low in such plants. b. Because such plants do not make their food regularly. c. To offer minimum resistance to the flowing water. d. Aquatic plants have broad leaves mostly.
Answer: a Explanation: The process of getting rid of waste materials produced in the body is called as excretion while as the process of removal of undigested food from the body is called egestion.
Q147. Which of the following is absent in plants? 1. Locomotion 2. Movement 3. Sexual reproduction Choose the correct word. a. 1 only b. 1 and 2 only c. 2 and 3 only d. 1, 2 and 3
Answer: a Explanation: Plants show movements such as opening and closing of flowers, flowers following the sun's direction, etc. Plants can reproduce sexually as well as asexually.
Q148. Which of the following is a luminous object? a. Sun b. Moon c. Mirror. d. Inverter
Q149. Which of the following is not a translucent object? a. Wood. b. Butter paper. c. Glass. d. Plastic.
Q150. The following is not an insulator? a. Rubber. b. Wood. c. Glass. d. Metal.
Answer:d Explanation: Insulators do not allow electric current to pass through them.