Animal Kingdom — BIOLOGY STD 11 Science — Question

By which scientist was the method of classification of five kingdoms proposed?

How many total bones are there in human body? Name the largest and strongest bone.

If a hole is made in the diaphragm of a human being, what will be the effect on respiration?

Substance W is a chemical that inhibits spindle formation during cell division. If a meristematic sd plant cell were exposed to substance W, which BU process will not be able to occur in that plant cell?

Name two elements involved in the redox reactions.

At what stage of cell cycle does DNA synthesis take place?

How do animals of Urochordata differ from those of Cephalochordata, with reference to notochord?

Mention two sensory functions performed by human ears.

Name the types of plants in which flowering response is not related to exposure to light.

Write short notes on the functions of the following hormones: Androgens.