BEACHROAD VILLAGE HOMESCHOOLING EXAMINATION BIOLOGY STAGE 7 END-YEAR EXAMIN ATION DECEMBER 2023 CAMBRIDGE PROGRESSION TEST NAME………………………………………………………………………………………DATE……………………………..SIGN…………… TIME:35 minutes. No additional materials are needed. INSTRUCTIONS A) Answer all questions B) Write your answer to each question in the space provided. C) You should show all your working on the question paper. INFORMATION A) The total mark for this paper is 50 B) The number of marks for each question is shown in brackets[] 1. Define the following terms; a) Balanced diet. (2mks) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… b) Vertebrates. (1mk) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… c) Consumer. (1mk) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… d) Prey. (1mk) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… e) Parasite. (1mk) 1 BEACHROAD VILLAGE HOMESCHOOLING EXAMINATION …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… 2. Underline the odd one out and give a reason for your answer. a) Grass, Fern, Flowering tree. (1mk) b) Moss, Conifer, Flowering tree. (1mk) c) Moss, Grass, Fern. (1mk) 3. a) Explain the difference between renewable and non-renewable sources of energy. (4mks) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… b) Give two examples of each type of energy source. i) Renewable sources. 2mks) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… ii) Non-renewable sources. (2mks) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… 4. Name groups of vertebrates that are; a) Warm blooded. (2mks) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… b) Cold blooded. (3mks) 2 BEACHROAD VILLAGE HOMESCHOOLING EXAMINATION …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… 5. What role do the following play in plants? a) Xylem. (2mk) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… b) Phloem. (2mk) …………………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………… 3 BEACHROAD VILLAGE HOMESCHOOLING EXAMINATION 6. a) Match. (5mks) NUTRIENT FUNCTION IN THE BODY Carbohydrates For growth and repair Proteins For growth and to aid the activity of the cell Fat Provides energy Vitamins For insulation and making cell membrane Minerals Aid chemical reactions in cells b) Which type of nutrient should you eat most? (1mk) …………………………………………………………………………………………………………………………………………………………… 7. Classify each animal by the description given. (6mks) a) Dolphins feed their young on milk…………………………………………………………………………………………………… c) Sea turtles lay their eggs in the sand…………………………………………………………………………………………………. d) Penguins lay shelled eggs………………………………………………………………………………………………………………… e) Whales lose their before they are born…………………………………………………………………………………………… f) Komodo dragons have dry scaly skin………………………………………………………………………………………………… 8. Food chains begin with…………………………………………..which make their own food. 4 (1mk) BEACHROAD VILLAGE HOMESCHOOLING EXAMINATION 9.Below is a feeding relationship. Use guideline to match the terms with their definitions. (8mks) TERM/PROCESS DEFINITION Food chain A network of interconnected food chains Food web An organism that gets its energy by eating other organisms Producer The transfer of energy from one organism to the next, beginning with the producer Consumer An animal that gets its energy from eating plants Herbivore An organism that gets its energy from dead or waste organic material. Carnivore An organism that makes its own organic nutrients, usually through photosynthesis Decomposer An animal that gets its energy by eating other animals 5