141. Spiders belong to which class of animals?

1. Arachnids
2. Aves
3. Gastropods
4. Anthozoa

Option “1” is correct.
Spiders belong to the class of Arachnids.
142. The fat digesting enzyme Lipase is secreted by which of the following

1. Kidneys
2. Pancreas
3. Large Intestine
4. Liver

Option “2” is correct.
Lipase is an enzyme in the body uses to break down fats in food so they can be absorbed in the intestines. Lipase is produced in the pancreas, mouth, and stomach.
143. The arrangement of leaves on an axis or stem is called-

1. Phyllotaxy
2. Vernation
3. Venation
4. Phytotaxy

Option “1” is correct.
The pattern of arrangement of leaves on the stem is called Phyllotaxy. As a stem grows at its apex, new leaf buds form along the stem by a highly controlled developmental process.
144. Which drug is used to cure Osteoporosis?

1. Risedronate
2. Tramadol
3. Promethazine
4. Levothyroxine

Option “1” is correct.
Risedronate medicine is for use when you have a high risk of bone fracture due to osteoporosis.
145. A ______________ is the fleshy, spore-bearing fruiting body of a fungus.

1. Aloe Vera
2. Coral
3. Cactus
4. Mushroom

Option “4” is correct.
A Mushroom is the fleshy, spore-bearing fruiting body of a fungus.
146. The xylem in plants are responsible for:

1. Transport of water
2. Transport of food
3. Transport of amino acids
4. Transport of oxygen

Option “1” is correct.
Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to shoots and leaves, but it also transports some nutrients.
147. Which of the following bacterium causes crown gall disease in plants?

1. Bacillus thurigiensis
2. Agrobacterium tumefaciens
3. Pseudomonas fluorescens
4. None of these

Option “2” is correct.
Crown gall is a disease caused by the bacterium Agrobacterium tumefaciens, which enters the plant through wounds in roots or stems and stimulates the plant tissues to grow in a disorganised way, producing swollen galls.
148. The heat treatment applied to milk to stabilize and to remove disease causing bacteria is called as-

1. Pasteurization
2. Fermentation
3. Coagulation
4. Homogenization

Option “1” is correct.
Pasteurization is the heat-treatment process that destroys pathogenic microorganisms in certain foods and beverages. It is named after the French scientist Louis Pasteur. It is used to stabilize and remove disease from milk.
149. Cockroach cannot survive in the water because its respiratory organ is –

1. Gill
2. Trachea
3. Book lung
4. Pulmonary sac

Option “2” is correct.
Cockroach cannot survive in the water because its respiratory organ is trachea.
150. Which of the following is an egg laying mammal?

1. Bat
2. Leafy-Ant eater
3. Whale
4. Spiny Ant-eater(Echidna)

Option “4” is correct.
Spiny ant-eater is an egg laying mammal.
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48 thoughts on “Biology”

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