Improvement In Food Resources — Science STD 9 — Question

Cattle husbandry is done for the following purpose.

1. Milk production.
2. Agricultural work.
3. Meat production. 
4. Egg production.

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

Efficient large-sized cells are:

The infoldings in mitochondria are known as:

Air is a mixture of:

1. Nitrogen, oxygen, methane, carbon dioxide.
2. Nitrogen, oxygen, carbondioxide, water vapours.
3. Nitrogen, carbon dioxide, oxygen, carbon monoxide.
4. Nitrogen, oxygen, carbon monoxide, water vapours.

............... takes part in the formation of lysosomes:

Which of these is not related to endoplasmic reticulum?

Tapeworm is member of phylum:

1. Annelida.
2. Porifera.
3. Nematoda.
4. Platyhelminthes.

The first experiment in artificial insemination was performed by:

1. Aristotle
2. Berzelius
3. Spallanzani
4. Linnaeus

Cylindrical muscle fibres which show alternate light and dark bands are:

1. Smooth muscle.
2. Cardiac muscle fibres.
3. Tendons.
4. Striated muscle fibres.

Striated muscles: