This questions will defeat you if you are not well prepared, set 004

 Biology question set 004

Instructions:

• This set comprises of two sections A and  B 
• Answer all the questions 
• Pick the correct option 

See

 question set 003

  question set 002

Section A

1.  Ecological systems often have producers, consumers, predators, and preys. Which organisms maintain the balance of ecosystems ?
A.  Preys             B. Consumers
C. Producers      D. Predators

2. A student heated strongly a dry sample of soil to a constant mass.  The loss of mass in the soil is due to
A. loss of mineral salts
B. Loss if water
C. Escape of air
D. Destruction of humus

3. Which one of the following forms part if the insect respiratory system ?
A. Trachea, tracheoles and branchioles
B. Spiracle, trachea and tracheoles
C. Spiracles, trachea and bronchioles

D. Trachea, bronchus and bronchioles
4. The normal reproductive cycle of the human female involves the interaction of the
A. Oviduct, thyroid gland and ovary
B. Pituitary gland, ovary and vagina
C. Adrenal gland, ovary and vagina
D. Placenta, pituitary gland and uterus

5. Which one of the following plants would depend most one wind for its reproduction?
A. Small inconspicuous flowers and light seeds
B. Sticky pollen grains and explosive fruits
C. Numerous pollen grains and enclosed stigma
D. Coloured petals and small hairt fruits

6. Spirogyra normally reproduce by
A. Binary fission
B. Conjugation
C. Budding
D. Hypae

7. In man eostrus cycle is also known as
A. Heat period
B. Gestation period
C. Menstrual cycle
D. Lactation cycle

8. A defect affecting the shape of blood cells which can be inherited is known as
A. Haemophilia
B. Diabetes
C. Anaemia
D. Sickle cell

9. In one-day old tadpoles, gaseous exchange is performed by
A. Lungs
B. External gills
C. Internal gills
D. Skin of the tail

10. which one of the following are the end product of the digestion of cane sugar ?
A. Glucose and fructose
B. Fructose and galactoes
C. Gycerol and fructose
D. Galactoes and glucose

SECTION B
11 (a). What is transpiration?
  (b). State the environmental factors that affects the rate of transpiration
 (c). Describe an experiment to show that plants transpire

12(a). State the method you would employ to determine the population of animals in a given habitat
(b). Give factors that may affect the destribution of animal population in any habitat