(a) (i) Define asexual reproduction.

(ii) Name two types of asexual reproduction which occur in animals giving one example in each case.

(b) In a tabular form outline four differences between sexual and asexual reproduction.

(c) Make a large, labelled diagram 8 - 10cm long of the human spermatozoon to show its structure.

(d) State one function each of any three organelles found in the spermatozoon.

The most reliable estimate of growth is by measuring changes in

• A. length
• B. volume
• C. surface area
• D. dry weight

Placentation in fruits is referred to as the

• A. arrangement of ovules in the ovary of a flower
• B. part of the ovary where the ovules originate and remain till maturity
• C. ovules borne on a central column of tissues in an ovary
• D. formation of a single carpel joined at the two edges of an ovule

In which of the following organisms would glycogen be stored?

• A. Spirogyra
• B. Chlamydomonas
• C. Rattus
• D. Magnifera

The dominant phase in the life cycle of a bryophyte is the

• A. gametangium
• B. sporophyte
• C. gametophyte
• D. prothallus

Which of the following processes is involved in the reproduction of developing organisms?

• A. Budding
• B. Germination
• C. Fertilization
• D. Pollination

Which of the following pairs of organisms are photosynthetic?

• A. Amoeba and Paramecium
• B. Volvox and Rhizopus
• C. Chlamydomonas and Euglena
• D. Nostoc and Plasmodium

Countershading is an adaptive feature that enables animals to

• A. fight enemies
• B. remain undetected
• C. warn enemies
• D. attract mates

Vitamin E is concerned with

• A. bone formation
• B. reproduction
• C. normal growth
• D. formation of red blood cells.

A student dissecting am animal specimen discovered that it had two auricle and on ventricle. The animal is likely to a/an

• A. fish
• B. reptile
• C. amphibian
• D. bird