The Fundamental Unit of Life — Science STD 9 — Question

The muscular tissue which function throughout the life continuously without fatigue is:

Amoeba has a contractile vacuole for:

1. Osmoregulation.
2. Storage.
3. Turgidity.
4. Gaseous exchange.

Epithelial tissue always has an exposed outer surface and an inner surface anchored to connective tissue by a thin, non- cellular structure called the:

The codes for the specific proteins produced by a cell lies in the ________.

Elephantiasis disease of human beings is caused by:

1. Wuchereria.
2. Ascaris.
3. Enterobius.
4. Ancylostoma.

Phloem in the plant perform the function of _________.

1. Conduction of food.
2. Conduction of water.
3. Providing support.
4. Photosynthesis.

Lignified elongated dead cells are:

1. Parenchyma.
2. Collenchymas.
3. Sclerenchyma.
4. None of the above.

Which one of the following fishes is a surface feeder?

1. Rohus
2. Mrigala
3. Common carps
4. Catlas

Poultry farming is undertaken to raise following:

1. Egg production.
2. Feather production.
3. Chicken meat.
4. Milk production.

1. (i) and (ii)
2. (i) and (iii)
3. (ii) and (iii)
4. (iii) and (iv)

Draw diagram of:

1. Nitrogen cycle.
2. Carbon cycle.