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Science Class 7th

141. _____ flows through arteries, capillaries and veins

A) Blood

B) Water

C) Air

D) None of these

Answer
A

142. _____chamber of heart contain deoxygenated blood

A) Right

B) Left

C) None of these

Answer
A

143. _______ chamber of heart contain oxygenated blood.

A) Right

B) Left

C) None of these

Answer
B

144. Asexual reproduction in plants is a kind of reproduction in which only______ parent plant is involved

A) One

B) Two

C) Three

Answer
A

145. Asexual reproduction in plants is also known as ______

A) Vegetative reproduction

B) Non-vegetative reproduction

C) Both a & b

Answer
A

146. When the cut stems or branches of some plants are placed in the soil, they develop into __________.

A) New plant

B) New stem

C) New leave

Answer
A

147. __________ is a method in which cutting are grafted on other plants of same kind, to improve quality and quantity of yield

A) Grafting

B) Cutting

C) None of these

Answer
A

148. When the branches of some plants are buried in the soil they develop roots and finally a new plant is formed called ____

A) Layering

B) Cutting

C) Grafting

Answer
A

149. When the _______are grown, these eyes or buds develop into new plants.

A) Tubers

B) Runners

C) Both a & b

Answer
A

150. In _______ the sex cells are involved.

A) Sexual reproduction

B) Non-sexual reproduction

C) None of these

Answer
A

151. _____ is the reproductive part in the flowering plants consisting of sepals, petal, stamens and carpels.

A) Flower

B) Stem

C) Leaves

Answer
A

152. _______ are usually green and leaf-like structures that protect the inner parts of the flower.

A) Sepals

B) Petals

C) Stamens

Answer
A

153. ___________ are often brightly coloured and leaf-like parts.

A) Sepals

B) Petals

C) Stamens

Answer
B

154. ______ are the male reproductive organs

A) Sepals

B) Petals

C) Stamens

Answer
C

155. __________ is the female reproductive organ.

A) Sepals

B) Petals

C) Stamens

D) Carpel

Answer
D

156. _____has three parts, the ovary, style and stigma

A) Carpel

B) Sepals

C) Petals

D) Stamens

Answer
A

157. In ___________ the gametes of the male and female parent fuse together to form a zygote

A) Sexual reproduction

B) Asexual reproduction

C) None of these

Answer
A

158. In asexual reproduction there is _____ in number through the reproductive process.

A) Rapid increase

B) Slower increase

C) None of these

Answer
A

159. In sexual reproduction there is _______ in number through the reproductive process

A) Rapid increase

B) Slower increase

C) None of these

Answer
B

160. In asexual reproduction all offspring are_______

A) Identical

B) Variation

C) None of these

Answer
A
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