What would happen if solution Y is more concentrated than solution X in fig 2
- A. The level of X would rise, Y would falls
- B. The level of X would rise, Y would rise
- C. The level of X and Y stands the same
- D. The level of Y would rise, X would fall.
The four classes of cnidarian include the following except
- A. Turbellaria
- B. Anthozoa
- C. Scyphozoa
- D. cubozoa
How many days is used for incubation of an egg to release chick
- A. 21
- B. 22
- C. 20
- D. 23
An organism which exhibit extracellular digestion is
- A. Spirogyra
- B. Paramecium
- C. Amoeba
- D. Rhizopus
What is the function of contractile vacuole in paramecium?
- A. Produces Enzymes
- B. Gets rid of excreta
- C. Stores and digest food
- D. Gets rid of excess water
A pollutant that is mostly associated with acid rain is
- A. Nitrogen oxides
- B. Ozone
- C. Flourine
- D. Carbony (IV) oxide
The function of pith in plant is
- A. Absorb mineral salt and nutrient from the soil
- B. Pith, or medulla, is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant.
- C. trap chlorophyll from the sunlight
- D. Removal of waste product from the plant
The yellowish colored liquid component of blood that normally holds the blood cells in suspension is
- A. serum
- B. plasma
- C. water
- D. thrombocyte
The flippers of a whale and the fins of a fish are examples of
- A. divergent evolution
- B. co-evolution
- C. continuous variation
- D. convergent evolution
A boy who is fond of swimming in a pond finds himself passing urine with traces of blood. He is like to have contracted?
- A. schistosomiasis
- B. onchocerciasis
- C. poliomyelitis
- D. salmonellosis
An accurate identification of a rapist can be carried out by conducting
- A. RNA analysis
- B. DNA analysis
- C. blood group test
- D. behavioural tests
Use the diagram to answer the question. The breeding posture illustrated in the diagram is knows as
- A. mating
- B. amplexus
- C. courtship display
- D. reproductive swimming
Use the diagram to answer the question. The diagram shows that the organisms are
- A. hermaphrodite
- B. viviparous
- C. oviparous
- D. ovoviparous
Evidence of evolution include the following except?
- A. fossil records
- B. comparative anatomy
- C. molecular records
- D. geographical distribution of organisms
An animal which is active during the day is known as a
- A. nocturnal animal
- B. diurnal animal
- C. terrestrial animal
- D. homortacmic animal
Cytokinesis of mitosis is a process that ensures that
- A. each daughter cell gets the necessary organelles
- B. there is distribution of a complete set of genes into each daughter cell
- C. daughter cell inherit new genetic combinations
- D. worn out organelles are excluded from daughter cells
A woman who is heterozygous for the disease haemophilia marries a man who is haemophilic. What percentage of their offspring would have the disease?
- A. 0%
- B. 25%
- C. 50%
- D. 75%
DNA in eukaryotic cells is contained in the
- A. central vacuole
- B. nucleus
- C. lysosome
- D. golgi body
The immediate product of meiosis in flowering plants is the
- A. sporophyte
- B. gametophyte
- C. zygote
- D. endosperm
Which of the following diseases is not hereditary?
- A. Albinism
- B. Scabies
- C. Haemophilla
- D. Colour blindness
Study the diagram of a food chain shown and use; it to answer the question.
P —> Q —> R —> S —> T
Which of the following statements best describes the organism designated R? It
- A. feeds on S
- B. is a primary consumer
- C. is a producer as well as a consumer
- D. is a secondary consumer