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
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
Kwashiorkor is caused by severe deficiency of
- A. Water
- B. Oil
- C. Drugs
- D. Proteins
- E. Sugars
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
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
Which of these animals is NOT metamerically segmented?
- A. Tapeworm
- B. Earthworm
- C. Centipede
- D. Crayfish
- E. Shark
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
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
The thoracic vertebrae of a mammal is characterized by the
- A. vertebraterial canal
- B. prominent neural arch
- C. prominent transverse
- D. prominent neural spine
- E. prominent centrum
The correct route for a piece of bread eaten by a mammal is
- A. oral cavity - oesophagus - stomach - ileum - rectum
- B. oral - cavity - stomach - oesophagus - duodenum - ileum - rectum
- C. oral cavity - oesophagus - duodenum - rectum
- D. oral cavity - oesophagus - ileum - stomach - duodenum - rectum
- E. oral cavity - oesophagus - stomach - ileum - duodenum - rectum
The functional unit of a mammalian kidney is the
- A. urethra
- B. malphigian capsule
- C. glomerulus
- D. nephron
- E. ureter
The hepatic portal vein is unique because it
- A. carries deoxygenated blood
- B. begins and ends with capillaries
- C. is the largest vein in mammals
- D. carries digested food
- E. is the shortest vein in mammals
A plant which has a horizontal underground stem is
- A. rhizome
- B. corm
- C. creeper
- D. tuber
- E. bulb
Soil is said to be fertile if
- A. It is black
- B. it can supply usable nutrients to plants
- C. the oxygen content is very high
- D. artificial manure is added to it
- E. it is not waterlogged
Growing yam tendrils climb for support. This growth response is
- A. haptotropism
- B. geotropism
- C. phototropism
- D. hydrotropism
- E. chemotropism
Which of these substance is likely to be deficient in the diet of a person having goitre?
- A. potassuim
- B. calcium
- C. iodine
- D. sodium
- E. Phosphorus
The deficiency of vitamin D leads to
- A. scurvy
- B. pellagra
- C. rickets
- D. beriberi
- E. polio
One common feature of the fungi, algae, mosses and ferns is that they?
- A. are photosynthetic
- B. show alternation of generation
- C. reproduce by means of conjugation
- D. can survive dry conditions
- E. have no seeds
In which of the following plants is swollen shoot disease common?
- A. Groundnut
- B. cocoa
- C. Corn
- D. Cotton
- E. Rubber
An instrument used in measuring the speed of wind is
- A. a barometer
- B. a wind gauge
- C. a wind vane
- D. an anemometer
- E. a hydrometer
If the anthers of a flower mature before the stigma, the condition is termed
- A. epigyny
- B. hypogyny
- C. protogyny
- D. protandry
- E. perigyny