Long neck in giraffe is used to illustrate the theory of
- A. Use and Disuse
- B. Origin of species
- C. Origin of life
- D. Natural selection
The damage to ozone layer is caused by
- A. Oxygen
- B. Nitrogen oxide
- C. Chlorofluorocarbons
- D. sulphur dioxide
Name the blood cells in which nucleus is absent
- A. Lymphocytes
- B. Blood Platelets
- C. Monocytes
- D. Eosinophil
Botany is also known as
- A. Phytology
- B. Phycology
- C. Pedology
- D. Plantophyta
Etiolation is causes by the influence of
- A. Mineral Salts
- B. Water
- C. Carbondioxide
- D. Light
Examples of micronutrients include the following except
- A. vitamins A
- B. Vitamin B6
- C. Biotin
- D. carbon
A distinguishing feature of mammals is the possession of
- A. Skin
- B. Scale
- C. Nail
- D. Hair
The gland that is present close to Trachea
- A. Pancreas
- B. Liver
- C. Adrenal
- D. Thyroid
Double fertilisation is a unique features of
- A. Angiosperms
- B. Bryophytes
- C. Pteridophytes
- D. Algae
Swollen, bleeding gums are another common sign of which vitamin
- A. Vitamin K
- B. Vitamin B
- C. Vitamin C
- D. Vitamin D
Accessory material in a chicken egg include the following except
- A. Albumen
- B. Shell membrane
- C. Shell
- D. Germinal disc
Ozone hole refers to
- A. hole in ozone layer
- B. decrease in the ozone layer in troposphere
- C. decrease in thickness of ozone layer in stratosphere
- D. increase in the thickness of ozone layer in troposphere
The greatest amount of energy would be obtained by the Oxidation of 100kg of
- A. Meat
- B. Butter
- C. Sugar
- D. Biscuit
In the egg of a bird, the embryo is located in the
- A. Chalaza
- B. Yolk
- C. Albumen
- D. Airspace
The vitamin which is important in the formation of the retina pigment is
- A. Vitamin A
- B. Vitamin B
- C. Vitamin C
- D. Vitamin D
Maltose is combination of glucose and
- A. glucose
- B. sucrose
- C. Galactose
- D. fructose
An example of a radially symmetrical organisms is
- A. Planaria
- B. Hydra
- C. Tapeworm
- D. Roundworm
Man can contact tapeworm through
- A. ingesting uncooked meat
- B. from fish
- C. from breathing
- D. through contact
What is the function of trichocyst in paramecium
- A. Movement
- B. Defence
- C. Excretion
- D. Respiration
The energy released by 1 gram of glucose is
- A. 6 kcal
- B. 4 kcal
- C. 5 kcal
- D. 3 kcal
Which of the following animals is cold blooded
- A. Cat
- B. Lizard
- C. Whale
- D. Bird