Health — Biology STD 10 — Question

The alkaloid colchicine inhibits the formation of the mitotic spindle.

When air is polluted, you can always see and smell it.

Calcium is the main element of thyroxine.

Fertilisation occurs in vagina.

Rickets is caused due to deficiency of iodine.

(a) Mention whether the following statement is true or false
(b) Correct the false statement by altering the last word only.
Xylem is the water conducting tissue in plants.

Glomerular filtrate consists of many substances such as water, salts, glucose and white blood corpuscles.

Root hairs are the extensions of the outer epidermal cells of the root

Mutation can be brought about artificially.

Cytokinesis takes place through cleavage furrow in animal cells.