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Selina Concise ICSE Solutions for Class 8 Biology UNIT 1 : Transport in Plant 1. Transportation in Plants UNIT 2 : Life Processes 2. Reproduction in Plants 3. Reproduction in Humans UNIT 3 : Ecosystems 4. Ecosystems UNIT 4 : Human Body 5.  Endocrine System and Adolescence 6. The Circulatory System 7. Nervous System UNIT 5 : Health and Hygiene 8. Diseases and First Aid UNIT 6 : Food Production 9. Food Production More  Resources for Selina Concise Class 8 ICSE Solutions Selina Concise Mathematics Class 8 ICSE Solutions Selina Concise Physics Class 8 ICSE Solutions Selina Concise Chemistry Class 8 ICSE Solutions Selina Concise ICSE Solutions for Class 8 Biology

REVIEW QUESTIONS Multiple Choice Questions: 1. Put a tick mark (✓) against the correct alternative in the following statements: (a) Diffusion occurs when molecules move: from lower concentration to higher concentration. from higher concentration to lower concentration through a membrane. from higher concentration to lower concentration. when energy is used. Answer: (3) from higher concentration to lower concentration. (b) Ascent of sap in plants takes place through: Cortex Epidermis Xylem Phloem Answer: (3) Xylem (c) If the xylem vessels of a plant are plugged: The leaves will turn yellow  No food will be made The plant will wilt (shrivel) The plant will continue to grow Answer: (3) The plant will wilt (shrivel) (d) Force responsible for the ascent of sap is: Capillary force Root pressure Transpirational pull All the three Answer: (4) All the three (e) Raisins swell when put in: Rain water Tap water Mustard oil ...

REVIEW QUESTIONS Multiple Choice Questions: 1. Put a tick mark (✓) against the correct alternative in the following statements (a) Pollen is produced in the: Filament Style Pistil Anther (b) Reproductive whorls of a flower are: Stamens and carpels Sepals and petals Sepals and stamens Petals and carpels (c) Grafting is a method of: Artificial vegetative propagation Sexual reproduction Artificial pollination Cross-pollination (d) Which one of the following is a false fruit ? Tomato Apple Potato Pea Short Answer Questions: Question 1. Write two ways in which pollination may occur in plants. Answer: The two ways in which pollination may occur in plants are: (a) Self-pollination. (b) Cross-pollination. Question 2. Name the three agents of pollination. Answer: The three agents of pollination are: (a) Insect (b) Wind (c) Water Question 3. Give two features of flowers which favour pollination by insects. Answer:...

REVIEW QUESTION Multiple Choice Questions: 1. Put a tick mark (✓) against the correct alternative in the following statements: (a) The testes are located within the: Penis Scrotum Ureter Urinary bladder (b) Amoeba is most commonly reproduced by: Budding Regeneration Binary fission Multiple fission (c) Identify the stage which is formed after the fertilisation of the egg by the sperm? Ovule Foetus Embryo Zygote (d) Internally, the uterus opens into: Urethra Vagina Oviduct Vulva (e) Which one of the following represents the correct sequence in the life history of a butterfly? Egg → Larva → Adult → Pupa Egg → Pupa → Adult → Larva Egg → Larva → Pupa → Adult Egg → Pupa → Larva → Adult Short Answer Questions: Question 1. Distinguish between the following pair of terms: (a) Egg and sperm. (b) Sexual reproduction and asexual reproduction. (c) Budding and Regeneration. Answer: (a) Egg and sperm Egg Sperm Egg is produced in t...

REVIEW QUESTIONS Multiple Choice Questions: 1. Put a tick mark (✓) against the correct alternative in the following statements: a. The term “ecosystem” is derived from the Greek word “Oikos” meaning. Body weight Food House Size b. Rat in any food chain would occupy the position of Tertiary consumer Secondary consumer Primary consumer Producer c. Evergreen broad-leaved trees are characteristic of Tropical rain forests Temperate deciduous forests Coniferous forests All of the above types of forests. Short Answer Type: 1. Mention if the following statements are true (T) or false (F). (a) Snakes are primary consumers (T/F) (b) Some humans are strictly primary consumers & some others are of other types of consumers also (T/F) (c) No ecosystem can survive without light (T/F) (d) Cattle go to ponds for drinking water, so they are a constituent of pond ecosystem (T/F) Answer: (a) Snakes are primary consumers (F) No the snakes...

REVIEW QUESTIONS Multiple Choice Questions : 1. Put a tick mark (✓) against the correct alternative in the following statements: (a) The only artery which carries deoxygenated blood is called, 1. Hepatic artery 2. Pulmonary artery 3. Aorta 4. Renal artery (b) Pulmonary vein carries 1. Oxygenated blood 2. Deoxygenated blood 3. Glucose-deficient blood 4. CO2 laden blood (c) Function of WBCs is to 1. Transport oxygen 2. Help in clotting of blood 3. Provide immunity 4. Provide storage of food. (d) Blood Capillary is a 1. Broad tube 2. Artery with thick wall 3. Vein with large lumen 4. Narrow tube made up of endothelium only. (e) Nucleus is absent in 1. RBCs 2. WBCs 3. All blood cells 4. Liver cells. (f) Sphygmomanometer measures 1. Pulse rate 2. Heart beat 3. Blood pressure 4. Brain activity (g) The blood tastes saltish due to the presence of dissolved: 1. Sodium chloride 2...