43
Which of these food chains is NOT possible in a forest?
- A. Diatom → fly → toad → snake
- B. Fly → toad → snake→ hawk
- C. Leaves → antelope → man → lion
- D. Leaves → caterpillar → bird → lion
- E. Leaves →goat → man→ lion
44
An hormoiothermic animal kept in a room where the temperature is lower than the body temperature may lose heat by four physical process. Which of the following processes is NOT connected with the body temperature regulation ?
- A. Radiation
- B. Sweat
- C. Evaporation
- D. Conduction
- E. Convection
45
Kwashiorkor is caused by severe deficiency of
- A. Water
- B. Oil
- C. Drugs
- D. Proteins
- E. Sugars
46
In human reproduction, the zygote formed as a result of fertilization gets attached to the wall of the uterus. The process is called
- A. Sexual reproduction
- B. Cohesion
- C. Pregnancy
- D. Implantation
- E. Viviparity
47
Some of the major elements required by plants are
- A. Potassium, nitrogen, phosphorus, sodium, calcium
- B. Nitrogen, phosphorus, molybdenum, sodium, calcium
- C. Potassium, phosphorus, molybdenum, sodium, calcium
- D. Potassium, nitrogen, iron , sodium, calcium
- E. Potassium, nitrogen, phosphorus, silicon, cadmium
48
Which of these animals is NOT metamerically segmented?
- A. Tapeworm
- B. Earthworm
- C. Centipede
- D. Crayfish
- E. Shark
49
Which of these combinations is common to plant and animal cells?
- A. Centriole, middle lamella, golgi bodies, mitrochondrion
- B. Cytoplasm, sap, vacuole, starch grains, leucoplasts
- C. Plasma membranes, chromosomes, mitochondria, lysosomes.
- D. Nucleus, nucleolus, cellulose cell wall, endoplasmic reticulum
- E. Cytoplasm, centriole, cellulose cell wall, nucleolus
50
A population is defined as the collection of
- A. Similar organism that are found in the same habitat
- B. Similar organisms that breed in the same habitat
- C. Similar organisms that interbreed freely in the same habitat
- D. Similar organism eating the same food
- E. Different organisms in the same habitat