Which part of the ear equalizes air pressure on either side of the ear drum? Where is this structure located?

Santosh loved his garden, especially his pea plants. One year, he noticed that all the pea plants he grew from one batch of seeds had round seeds. Curious, he took the seeds from one of those plants and grew a new generation. To his surprise, 75% of the new plants had round seeds, but 25% had wrinkled seeds.

(a) What were the genotypes of the parent plants that Santosh originally planted?

(b) Which trait is dominant – round or wrinkled seeds?

(c) What is the genotypic ratio of the second generation (F2) plants?

Distinguish between Sympathetic system and Parasympathetic system on the basis of heartbeat.

Meena covered a potted plant as shown below with a transparent plastic bag. She observed water droplets inside the bag after a few hours when kept in sunlight.

(a) Name the process that resulted in the formation of water droplets inside the bag.

(b) Define the process mentioned above.