43
44
The part labelled 3 is the
- A. leaf scar
- B. lenticle
- C. auxillary bud
- D. girdle scar
45
The spores of ferns are dispersed by
- A. wind
- B. water
- C. insects
- D. explosive mechanism
- E. sporophyte
46
The algae, bryophytes and pteridophytes are similar in that they
- A. are sea weeds
- B. have no vascular tissue
- C. require moisture for fertilization
- D. are microscopic plants
47
Which of the following groups of invertebrates reproduces by budding?
- A. Arthropoda
- B. Annelides
- C. Mollusces
- D. Coelenterata
48
Hydra removes undigested food by
- A. passing it through the anus
- B. passing it through the mouth
- C. means of a contractile vacuole
- D. egesting it through the body surface
49
Which of the following characteristics is common to Amoeba and Paramecium?
- A. Oral groove
- B. Trichocyst
- C. Contractile vacuole
- D. Cilia
50
Viruses are considered to be living organisms because they
- A. possess transmittable characters
- B. move from one place to another
- C. respond to stimulation
- D. ingest food materials