19. Anticodón es el término que se aplica a A) la lista de aminoácidos que corresponden al código genético. B) que varios aminoácidos codifican un solo aminoácido C) la parte del RNAt que interactúa con el codón. D) la parte del RNAt que se une a un aminoácido.

(3) Vital process that enables an organism to move from one place to another. ( (2) Organisms that depend on others for obtaining their food.

C. Circle the letter of the correct answer. 1. Which gets information from the environment? \( \begin{array}{lll}\text { (a) the skeletal system } & \text { (b) the nervous system } & \text { (c) the blood } \\ \text { 2. Which carry messages from the sense organs to the brain or the spinal } \\ \text { cord? } \\ \begin{array}{lll}\text { (a) sensory nerves } & \text { (b) motor nerves } & \text { (c) blood vessels }\end{array} \\ \text { 3. Which cause muscles to move? } \\ \begin{array}{ll}\text { (a) sensory nerves } & \text { (b) motor nerves }\end{array} \text { (c) blood vessels }\end{array} \)

Write the answer on the lines. 10. How are fats broken down?

B. Fill in the missing word. 1. Sense organs get information from the _ (environment, muscles) 2. Bundles of neurons form 3. \( \begin{array}{l}\text { (Merves, messages) } \\ \text { (Motor nerves, Sensory nerves) } \\ \text { 4. Messages move from one your muscles to move. } \\ \text { threadlike branches. (neuron, blood vessel) }\end{array} \) to another along

Question 1 B Marks Complete the following sentences : (1) The human body is formed of several \( \qquad \) each of which is made up of several (2) Green leaves contain substance which is found in (3) From examples of amphibians is \( \qquad \) which respire oxygen from the atmospheric air through \( \qquad \) and (4) The plant needs \( \qquad \) element to form \( \qquad \) used in the growth of its cells and tissues. (3) Choose the correct answer: (1) Which of the following represents the product of the gas exchange process in plants? (a) \( \mathrm{N}_{2} \) only. (b) \( \mathrm{CO}_{2} \) only. (c) \( \mathrm{CO}_{2}, \mathrm{O}_{2} \) (d) \( \mathrm{CO}_{2}, \mathrm{H}_{2} \mathrm{O} \) (2) All the following are characteristics of the mushroom fungus, except (a) it is a unicellular organism. (b) it is a multicellular organism. (c) it is eukaryotic organism. (d) it can be seen by the naked eye. (3) Which of the following microbes is used in the production of ethyl alcohol? (a) Yeast. (b) Salmonella Typhi. (c) Penicillium Notatum. (d) Bread mold. C Write the equation for the substances involved in and produced by the process of photosynthesis. Question 28 Marks A Choose the odd (or phrase): (1) Heart / Veins / Arteries / Xylem. (2) \( \mathrm{CO}_{2} / \) Water / Blood / Urea. (3) Entamoeba Histolytica / Amoebic Dysentery / Typhoid / Antiprotozoal drug. ( (4) Ribosomes / Centrosome / Vacuoles / Plasma membrane. Write the scientific term (or name) for each of the following statements: (1) Undifferentiated cells that have the ability to transform into specialized cells in multicellular organisms.