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Q:

A multicellular organism grows by ____________.

A) Cell addition B) Cell explosion
C) Cell implosion D) Cell division
 
Answer & Explanation Answer: D) Cell division

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Q:

Which of the following transports water from the roots of the plant to its leaves?

A) Xylem B) Phloem
C) Both xylem and phloem D) Cortex
 
Answer & Explanation Answer: C) Both xylem and phloem

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Q:

The later (second) formed primary xylem elements are called _____________.

A) Protoxylem B) Metaxylem
C) Xylem parenchyma D) Xylem fibres
 
Answer & Explanation Answer: B) Metaxylem

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Q:

The cell wall in plants is interrupted by narrow pores carrying fine stands of cytoplasm which interlink the contents of the cells. These strands are called:-

A) Plasmahole B) Microvilli
C) Plasmodesmata D) Plasmalemma
 
Answer & Explanation Answer: C) Plasmodesmata

Explanation:

Plasmodesmata are interrupted by narrow pores carrying fine strands of cytoplasm, which interlink the contents of the cells.

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Q:

Haematopoiesis take place in _____.

A) Lungs B) Pancreas
C) Liver D) Bone marrow
 
Answer & Explanation Answer: D) Bone marrow

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Q:

Which of the following vitamins are water soluble?

A) Vit. A & Vit. B B) Vit. B & Vit. C
C) Vit. C & Vit. D D) Vit. A & Vit. K
 
Answer & Explanation Answer: B) Vit. B & Vit. C

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Q:

What is the shape of the two guard cells which enclose stomata?

A) Oval B) Triangular
C) Rectangular D) Kidney shaped
 
Answer & Explanation Answer: D) Kidney shaped

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Q:

Potato, tomato and brinjal are three different species but all belong to which genus?

A) Solanum B) Panthera
C) Felis D) Tigris
 
Answer & Explanation Answer: A) Solanum

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