Can you compare bone, muscle and joint which help in locomotion with any of simple machines you have studied earlier?

Which technique in relation to tissues have you studied in earlier classes?

Label the male reproductive system you have studied.

Label the given male reproductive system you have studied.

Which system of units have you used?

In which places have you seen a pulley ?

On which surfaces can you see your reflection ?

Each plant or group of plants has some phylogenetic significance in relation to evolution: Cycas, one of the few living members of gymnosperms is called as the relic of past. Can you establish a phlogenetc relationship of Cycas with any other group of plants that justifies the above statement?

Bend your arm at elbow. Observe the muscles in the front and the back of the arm. Straighten the arm and observe the same muscles again. Do the same with your leg folding it at the knee joint. Did you experience the contraction and relaxation of muscles at every movement?

Aminoacids, as the name suggests, have both an amino group and a carboxyl group in their structure. In addition, all naturally occurring aminoacids (those which are found in proteins) are called L aminoacids. From this, can you guess from which compound can the simplest aminoacid be made?

Can you name a few objects which change their shape and size on application of a force and regain their original shape and size when the force is removed ?