Tissues — Science STD 9 — Question

Find out the correct sentence about manure.

1. Manure contains large quantities of organic matter and small quantities of nutrients.
2. It increases the water holding capacity of sandy soil.
3. It helps in draining out of excess of water from clayey soil.
4. Its excessive use pollutes environment because it is made of animal excretory waste.

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

Binomial nomenclature consists of two words:

1. Genus and species.
2. Order and family.
3. Family and genus.
4. Species and variety.

Poultry fowl are susceptible to the following pathogens.

1. Viruses
2. Bacteria
3. Fungi
4. All the above

Tendon is a structure which connects:

Coverslip is put on the mounted material on a slide very gently to:

Seat of photosynthesis is:

1. Leuciplast
2. Chloroplast
3. Chromoplast
4. Both a and c

The history of the cell began in 1665 with the publication of Micrographia in London by:

The innermost layer of cortex which has casparian thickenings in its cells is the

Which of the following is gaseous fumigant?

1. DDT.
2. Aluminium phosphide.
3. Ethylene dichloride.
4. Methyl bromide.

Lignified elongated dead cells are:

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