Biology-Obj
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BIOLOGY THEORY 

6a)
i)flexible dujardin
ii)robert hooke
iii)mathiahs von virckow

6b)
TABULATE
classes of plant bases of life cycle and example
i)annual – maize, rice
ii)biennial – carrot, ginger
iii)perenial – banana, cocoa

6c)
The amniotic fluid help on neutralizing the effect of changes external temperature

6d)
i)Rhizobium- fixes atmospheric nitrogen directly into the plant
ii)Azotobacter- fixes atmospheric nitrogen into the soil either aerobically anaerobically
iii)Blue Green- improve soil fertilizer

6e) Click HERE for The Diagram

3ai)
Mango trees -> Caterpillars -> chicks of domestic fowls -> Hawks
3aii)
Click HERE for The FULL ANSWERS

3bi)
Water:
-Serves as a habitat for organisms.
-Serves as a source of water for irrigation.
-Serves as a source of hydroelectric power.
ii) Soil:
-It ensures continuous sources of plant nutrients.
-It ensures sources of water/reservoir for soil organisms.
-It ensures sources of raw materials for some industries.
iii) Forest:
-It ensures the conservation of trees or forest product.
-It helps to check erosion.
-It helps in the preservation of natural spaces

4) Click HERE for The FULL ANSWERS

2a)
Vitamins are group of organic compounds which are essential for normal growth and nutrition and are required in small quantities in the diet because they cannot be synthesized by the body.

2b)
Tabulate
Vitamin: C
One Function: Healing of wounds
One Deficiency: Scurvy
One Source: Citrus Fruits

Vitamin: D
One Function: Strong bones and teeth
One Deficiency: Rickets
One Source: Eggs

Vitamin: B
One Function: Releases energy from cabohydrates
One Deficiency: Beri-beri
One Source: Yeast

Vitamin: K
One Function: Clotting of blood
One Deficiency: Failure of blood to clot
One Source: Milk

2c)
i)Iron: Assists in nitrate and sulfate reduction and energy production within the plant
ii)Nitrogen: For rapid growth
iii)Calcium: It is responsible for holding together the cell walls of plants

1a)
Skeleton of mammal: this consists of a head at one end of a vertebral column from which extend ribs to support the working organs and four limbs for locomotion. The vertebral column ends in a tail.

1bi)
i)cuticle
ii)bones
iii)cartilage
1bii)
i)insects
ii)shark’s
iii)lizard

1c)
i)Support:- The rigid framework of the skeleton gives support to the body
ii)Protection:- The skeleton protects important and delicate organs of the body
iii)Respiration:- The skeleton also aids in respiration

1d) Click HERE for The Diagram

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