Which is the most important adaptation of a bony fish life in water?
- A. The possession of a streamlined shape
- B. The presence of overlapping scales
- C. the covering of the body by thin film of slime
- D. The possession of a caudal fin
Which of the following combinations differentiates a bony fish from a cartilaginous fish? I. Presence of gills II. Absence of gill slits III. Possession of bony skeleton IV. Possession of laterally compressed body V. Possession of dorso-ventrally compressed body
- A. I, II and III
- B. I, III and IV
- C. II, III and IV
- D. II, III and V
In Amoeba, osmoregulation is carried out by the
- A. pseudopodium
- B. food vacuole
- C. contractile vacuole
- D. nucleus
Which is the correct order in an evolutionary sequence for the following plants groups?
- A. Bacteria → ferns → algae → mosses → seed plants
- B. Bacteria → ferns → mosses → algae → seed plants
- C. Bacteria → algae → mosses → ferns → seed plants
- D. Bacteria → mosses → algae → ferns → seed plants
The soil swallowed by the earthworm to form the worm cast is grouped up in the
- A. clitellum
- B. protomium
- C. mouth
- D. gizzard
Green plants are distinguished from other living organisms by their ability to
- A. make use of water
- B. make use of oxygen
- C. respond to sunlight
- D. manufactured their own food
The smallest living organism which share the characteristics of both living and non-living matter are
- A. bacteria
- B. fungi
- C. viruses
- D. protozoa
The membrane surrounding the vacuole in a plant cell is called the
- A. plasmalemma
- B. tonoplast
- C. nuclear membrane
- D. endoplasmic reticulum