Test: The World of Living - Class 6 MCQ

P could be stem of Bougainvillea whereas S could be leaves of Nepenthes.

Q could be stem of potato whereas R could be tendril of Gloriosa.

Q could be stem of onion whereas S could be leaf of Venus flytrap.

Q could be stem of ginger whereas R could be tendril of grapevine.

Radish, turnip and carrot are modifications of X.

X is found in gram while Y is found in barley.

X spreads horizontally hence cannot provide strong anchorage whereas Y penetrates very deep into the soil hence provides strong anchorage.

In Y, primary root is short-lived while X has persistent primary root.

Plants inhabiting S may have photosynthetic stems and leaves reduced to spines.

Animals inhabiting R possess thick layer of subcutaneous fat.

Animals inhabiting P show arboreal adaptations and often use camouflage and startling colouration for protection against enemies.

Plants inhabiting Q have large flat leaves and animals inhabiting Q excrete concentrated urine and are nocturnal.

P type of joint is found between the upper arm bone (humerus) and shoulder.

Q type of joint is present in our elbow and knee and allows movement in only one plane.

S type of joint allows side to side as well as backward and forward movement, e.g., wrist joint.

R type of joint allows the highest freedom of motion e.g., hip joint.

R is a shelled animal that possesses a muscular structure called foot which produces a series of wave like movements, pushing its body forward.

Q has paired and unpaired fins that help in movement in water.

P has special air sacs connected to the lungs which aid in respiration process.

Q has three pairs of jointed legs which help it to walk, run and climb.