Discuss the following questions

1) Describe the three characteristics of a population growth

2)Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?

(a) Biological names can be written in any language (b) The first word in a biological name represents the genus name, and the second is a specific epithet (c) The names are written in Latin and are italicised (d) When written by hand, the names are to be underlined

3) What is Sporophyll?

4) Which is the first oxygen-producing organism?

5) What do you know about the leaves of ferns?

6) It is much easier for a small animal to run uphill than for a large animal, because

(a) it is easier to carry small body weight. (b) smaller animals have a higher metabolic rate. (c) small animals have a lower O2 requirement. (d) the efficiency of muscles in large animals is less than in the small animals.

7) What is the white substance contained in the fibre cells?

8) How much biosphere extends to the distance?

9) What are the groups of sporangia borne on the fern leaves called?

10) Five kingdom system of classification suggested by R.H. Whittaker is not based on:

(a) Presence or absence of a well-defined nucleus. (b) Mode of reproduction. (c) Mode of nutrition. (d) The complexity of body organisation.

11) Which is the seed plant with fern-like leaves?

12) How the populations of different species are is kept under check?

13) In which plants the annuals are absent?

14) Which one of the following fungi contains hallucinogens

(a) Morchella esculenta (b) Amanita muscaria (c) Neurospora sp. (d) Ustilago sp.

15) The process of cutting trees to increase the land area for agriculture. What is it called?