TNPSC Biology Objective Questions and Answers - 2

Question: 6

The structures that give mechanical strength to young plants are

(A) Starch sheath

(B) Xylem fibers

(C) Cambium

(D) Xylem vessels

Question: 7

The Cerebral medulla is made up of

(A) Vermis

(B) Thalamus

(C) Grey matter

(D) White matter

Question: 8

The cerebral cortex is made up of

(A) Vermis

(B) Thalamus

(C) Grey matter

(D) White matter

Question: 9

The spinal cord extends upto

(A) Sacral vertebrae

(B) Lower thoracic vertebrae

(C) Lower lumbar vertebrae

(D) Upper lumbar vertebrae

Question: 10

The valve that lies between right auricle and right ventricle is

(A) Lunar valve

(B) Semi lunar valve

(C) Bicuspid valve

(D) Tricuspid valve