Observe the following features of animals and answer the following questions.
`**` Moist skin
`**` Hooks and suckers
`**` Pneumatic bones
`**` Dry and nonglandular skin
`**` Metamerism
a) Select the flight adaptation of birds.
b) Select the amphibious adaptation of frog.

Refer to the periodic tahle given in your book and now answer the following questions. a) Select the possible non-metals that can show disproportionation reaction. b) Select three metals that can show disproportionation reaction.

Read the following statements and find out the incorrect statements. a. Majority of flowering plants use a range of animals as pollinating agents. b. Bees, butterflies, flies, beetles, wasps, ants, moth, birds (sunbirds and humming birds) and bats are the common pollinating agents. c. Among the animals, insects particularly bees are the dominant biotic pollinating agents. d. Even larger animals such as some primates (lemurs), arboreal (tree dwelling) rodent, or even reptiles (gecko lizard and garden lizard) have also been reported as pollinators in some species. e. Often flowers of animal pollinated plants are specifically adapted for a particular species of animal.

From the following general characters find out corresponding Class with an Example a) Exclusively marine, triploblastic, spines on the skin, radially symmetrical in the adult and bilaterally symmetrical in the larval stage. b) Marine, they migrate towards freshwater for spawning, then their larvae retum to ocean after metamorphosis. c) Triploblastic, bilaterally symmetrical, coelomate and metamerically segmented animals.

By analyzing the given figure answer the following: (a) Name the cloning vector mentioned in the given diagram. (b) Identify and explain the role of selectable marker in the vector shown. (c.) Write the features required to facilitate cloning into a vector.