Question 1 :
<p>Which of the following intersegmental grooves contains four pairs of spermthecal apertures on the ventro-lateral sides of the earthworm?</p>

Question 9 :
Which one is correct about the respiration of frog? <br>I. In frog, cutaneous and pulmonary respiration are found <br>II. A pair of elongated pink hollow lungs are found in thorax <br>III. Atmospheric O₂ &rarr; Nostril &rarr; Buccal cavity &rarr; Lungs <br>IV. During aestivation and hibernation, gaseous exchange takes place through skin

Question 13 :
With respect to which factor, the pericycle of a root differs from that of the stem?

Question 14 :
<p>Structure of leaf which provide channels of transport for water, minerals and food materials is called</p>

Question 15 :
<p>Region of root present just above the root cap is called the region of</p>

Question 23 :
Dermatogen is a tissue formed by apical meristem and gives rise to

Question 24 :
The waxy substance associated with cell walls of cork cells are impervious to water because of the presence of _________________ , which gets deposited on cork cells

Question 26 :
<p>I. Petals</p><p>II. Usually brightly coloured</p><p>III. May be free</p><p>IV. May be fused</p><p>Features given above represents </p>

Question 28 :
The mature seeds of plants such as gram and peas possess no endosperm because

Question 29 :
<p> <font face="Cambria Math, serif">A tree grows at the rate of 0.5 m per year. What will be the height of the board fixed at 1.5 m above the base five years ago?</font></p>

Question 30 :
Identify the kind of phyllotaxy shown in the given figures A, B, and C.<br /><img style='object-fit:contain' src="https://s3.ap-south-1.amazonaws.com/me-p/5f4cbf3516d7e6154e45103f.jpg" />