Which of the following will ease the friction between the ends of bones in a movable joint?

• A. Serum
• B. Tissue
• C. Blood plasma
• D. Synovial fluid.

Vitamin C which is water soluble is

• A. cabalamine
• B. pyridoxine
• C. ascorbic acid
• D. riboflavine

Which of the following natural resources cannot be conserved?

• A. soil
• B. water
• C. wildlife
• D. air

The following are the functions of supporting tissues in plant except

• A. rigidity
• B. flexibility
• C. strengthening
• D. secretory

In a bean seed, absorption of water at the beginning of germination is through the

• A. hilium
• B. micropyle
• C. testa
• D. plumule

The pituitary is regarded as the master gland because

• A. it is locatd in the brain
• B. its secretion are the most numerous
• C. its secretion control other endocrine glands
• D. it is the biggest endocrine gland

a.Relationships I, II, III, IV and V exist among some organisms in an ecosystem. Use them to answer the question

I: Organism A grows on dead organism B.

II: Organism C feeds on the remnants of food left by organism D without affecting organism D negatively or positively

III: Organism E provides shelter for organism F while organism F transports organism E towards food

IV: Organism G kills organism B for food

V: Organism H feeds on organism J, causing organism J a disease.

Name the type of relationship in: I,II,III,IV,V

b. what is the biological term for each of organisms B and G?

c. Name one example each of organisms B to J

di. Name the relationship that is most beneficial to the ecosystem.

ii Give one reason for the answer in 3d(i)

ei. Give two examples of organism A

ii. Name the group to which organism A belongs

If a ring of bark and phloem is removed from a stem, the

• A. plant dies immediately
• B. plant dies after two days
• C. movement of food is not affected
• D. movement of minerals is hardly affected

The process by which fruits develop without fertilization is called

• A. parthenocarpy
• B. pathology
• C. hermaphroditism
• D. layering

Inheritable character/features possessed by an organism can be referred to as

• A. Genes
• B. Locus
• C. Traits
• D. Allelo morphs