One of the driving forces of locomotion is "Aggregation for the purpose of reproductive activities"—Establish the validity of the statement with the help of two marine animals.

The natures of Biceps, Pyriformis and Latissimus dorsi muscles respectively are: (a) Adductor, Extensor, Abductor (b) Extensor, Flexor, Rotator (c) Flexor, Rotator, Adductor (d) Rotator, Abductor, Adductor

"Dispersal of animals is one of the driving forces of locomotion" - Judge the statement with the help of proper examples.

Triceps is a flexor muscle. True or False?

Write one feature of connective tissue.

Explain what phenomena happen when the following muscles contract — (a) Flexor muscle (b) Extensor muscle (c) Abductor muscle (d) Rotator muscle

Which of the following is not an example of mutualism? (a) Man and intestinal bacteria (b) Water hyacinth and fish (c) Fish and sea anemone (d) Lichen and blue green algae

Write one feature of epithelial tissue

Write a feature of connective tissue.

'Scarcity of food and poaching are two main reasons behind the endangeredness of a mammal found in Eastern Himalayas biodiversity hotspot' - Justify the validity of the statement.

Explain the causes of endangeredness of Polar Bear and Gangetic Dolphin.

What environmental problems can originate if the concentration of different greenhouse gases polluting air increases in a steady manner?