Tissues — Science STD 9 — Question

Who first proved that heredity is controlled by nucleus?

Cnidaria is characterised by:

1. Nematoblasts.
2. Coelenteron.
3. Tissue level of organisation.
4. All the above.

Balanoglossus belons to Hemichordata which forms a connecting link between:

1. Urochordates and cephalochordates.
2. Urochordates and vertebrates.
3. Cephalochordates and vertebrates.
4. Nonchordates and chordates.

Which of these is not related to endoplasmic reticulum?

Which of the following are Indian cattle?

1. Bos indicus.
2. Bos domestica.
3. Bos bubalis.
4. Bos vulgaris.

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

Middle lamella is formed of:

1. Calcium pectate
2. Cellulose
3. Hemicellulose
4. Lignin

Internal parasites of cattle like fluke, damage:

The idea ‘omins cellula e cellula’ which means that all living cells arise from preecisting cells was given by:

Which of the following components of xylem is living:

Nerve cell does not contain: