Tissues — BIOLOGY STD 9 — Question

Difference between
Blood and Lymph

If you are provided with three slides, each containing one type of muscle fibre, how will you identify them?

Complete the following paragrath
(plasma, antigenic, bacterial or viral or antigenic, antigen , animal or human, antigen, bacteria or virus, antibodies, blood)Serums contain (i) ............. substance of a particular (ii) ............. and they are used as preventive measure against (iii) ............. invasions. To prepare serum, a small quantity of bacterial (iv) ............. is injected into a healthy (v) ............. . The animal body produces (vi) ............. to neutralise the effect of toxin. This process is repeated for several rounds and (vii) ............. of such animal is taken out and on chilling, it clears as straw colour liquid (viii) ............. . Snake bites are treated by producing anti-venom from the blood of (ix) ............. .

What is digestion? Why do only animals require a digestive system?

What are the various parts of a typical vertebra?

What do you mean by perigynous?

How is plant hybridisation carried out?

Difference between
Striated and Unstriated muscles

Name different steps involved in animal nutrition. Explain.

Name any three areas of biology which have specially developed recently.