Tissues — Science STD 9 — Question

Fill in the blanks. Xylem transports ______ and ________ from soil.

Fill in the following blanks with suitable words: A mixture of kerosene and petrol can be separated by _________.

Fibres are absent in __________ a type of connective tissue.

The additional protective layer in plants present outside the plasma membrane is called ________.

The fundamental particle not present in hydrogen is ________.

The virus that causes acquired immune deficiency syndrome (AIDS) parasitizes ____________.

__________ makes soil porous and allows water and air to peneterate deep underground.

Fill in the blanks in the following statements: The electron has ________ charge, the proton has _________ charge, and the neutron has _________ charge.

Fill in the following blanks with suitable words: Brass is an alloy which is considered a _________.