24 Sexual Reproduction in Flowering Plants Sexual Reproduction In Flowering Plants PRACTICE QUESTION Sexual Reproduction In Flowering Plants: Sexual reproduction is the process by which new organisms are formed from the fusion of male and female gametes from two parents. The flower is the primary reproductive structure. Within the flowers, the reproductive organs, or sporophylls, […]
23 REPRODUCTION IN ORGANISMS QUESTIONS
23 REPRODUCTION IN ORGANISMS QUESTIONS 23 REPRODUCTION IN ORGANISMS QUESTIONS CHAPTER NOTES Life span represents- A) Period from birth to natural death of an organism B) Period from birth to reproductive maturity of an organism C) Period from reproductive maturity to death of an organism D) Period from adolescence to senescent phase of an organism […]
23 REPRODUCTION IN ORGANISMS
23 REPRODUCTION IN ORGANISMS Reproduction In Organisms PRACTICE QUESTIONS Life Span: The period which begins from birth and ends with the natural death of an organism is known as its life span. Reproduction Reproduction is a biological process wherein younger ones produced are identical to their parents. This phenomenon is significant in the continuity of […]
22 CHEMICAL COORDINATION AND INTEGRATION QUESTIONS
22 CHEMICAL COORDINATION AND INTEGRATION QUESTIONS CHAPTER NOTES The organ system that helps regulate the metabolic activities through secretion of hormones is A) cardiovascular system B) endocrine system C) nervous system D) digestive system The nervous and endocrine systems interact to coordinate the functions of all the body systems and help to maintain […]
22 CHEMICAL COORDINATION AND INTEGRATION
22 CHEMICAL COORDINATION AND INTEGRATION CHEMICAL COORDINATION AND INTEGRATION Control and coordination In animals, control and coordination is performed by neural system and endocrine system jointly. As the nerve fibers do not innervate all cells of the body, the endocrine system is required to coordinate the functions. Endocrine Glands Endocrine glands are ductless glands. They […]
21 NEURAL CONTROL AND COORDINATION QUESTIONS
21 NEURAL CONTROL AND COORDINATION QUESTIONS CHAPTER NOTES 21 NEURAL CONTROL AND COORDINATION QUESTIONS Coordination is considered as an important process in an animal body because A) it helps to maintain homeostasis. B) it enables different organs to interact and function efficiently. C) it ensures the normal functioning of vital organs. D) all of these […]
21 NEURAL CONTROL AND COORDINATION
21 NEURAL CONTROL AND COORDINATION Human Nervous System Central Nervous System Peripheral Nervous System Coordination: Coordination is the process through which two or more organs interact and complement the function of each other. The endocrine system: Neural system provides an organized network of point-to-point connection for quick coordination. The endocrine system provides chemical integration through […]
20 LOCOMOTION AND MOVEMENT QUESTIONS
20 LOCOMOTION AND MOVEMENT QUESTIONS 20 LOCOMOTION AND MOVEMENT QUESTIONS CHAPTER NOTES Streaming of cytoplasm/cyclosis is seen in (A) Amoeba (B) Macrophages (C) Leukocytes (D) All Which of the following statements is correct? (A) Cytoplasmic streaming helps in pseudopodia formation or amoeboid movement (B) Cytoplasmic streaming is caused by contracting microfilament (C) Both a and […]
20 LOCOMOTION AND MOVEMENT
20 LOCOMOTION AND MOVEMENT PRACTICE QUESTIONS LOCOMOTION AND MOVEMENT Movement is defined as the movement of living organisms from one place to another; if the movement causes a change in location or position, it is called locomotion; such as walking, climbing, running, etc. Kinds of Movement There are three kinds of movement which are ciliary, […]
19 EXCRETORY PRODUCTS AND THEIR ELIMINATION QUESTIONS
19 EXCRETORY PRODUCTS AND THEIR ELIMINATION QUESTIONS 19 EXCRETORY PRODUCTS AND THEIR ELIMINATION QUESTIONS CHAPTER NOTES Ammonia and urea are waste products derived from the metabolic breakdown of- A) Lipids B) Carbohydrates C) Proteins D) Sugars Which of the following molecules is the most toxic to the cells? A) NaCl B) Urea C) Uric acid […]