Animal Kingdom — BIOLOGY STD 11 Science — Question

Give a brief explanation of muscle contraction.

Name two type of cells which lack nucleus.

Name. A warm blooded animal.

Give an example of red muscle fibre.

The animals of Aschelminthes are circular in cross section, hence what are they called?

Brassica campestris Linn: What is the meaning of Linn written at the end of the name?

Write the names of two animals coming in the order Primata.

Why are muscles rigidly locked in whatever position they are after death? What is the phenomenon known as?

Arrange the following in the sequence in which you would find them in a plant starting from the periphery: Pericycle, Epidermis, Pith, Endodermis, Cortex.

Directions Mark the odd one in the following group. Corticotropin, Gluco corticoids, Mineralo corticoids, Sexd corticoids.