X
Email me Daily Riddles
Question:- What are those reflex actions called which involve brain? A. Reflex arcs B. Cerebral reflexes C. Spinal reflexes D. None of the above
Answer:- B
Question:- The chemical substances which coordinate the activities of living organisms and also their growth are called: A. Hormones B. Blood C. Sodium D. Cytoplasm
Answer:- A
Question:- When the parent organism splits to form two new organisms, it is called: A. Budding B. Spore formation C. Binary fission D. Multiple fission
Answer:- C
Question:- The process of getting back a full organism from its body part is called: A. Spore formation B. Budding C. Regeneration D. Fragmentation
Answer:- C
Question:- The breaking up of the body of a simple organism into two or more pieces on maturing, each of which subsequently grows to form a complete new organism, is called: A. Fragmentation B. Vegetative propagation C. Binary fission D. Budding
Answer:- A
Question:- When new plants are obtained from the parts of old plants, without the help of any reproductive organs, it is called: A. Vegetative propagation B. Spore formation C. Fragmentation D. Multiple fission
Answer:- A
Question:- When the cut stems of two different plants are joined together in such a way that the two stems join and grow as a single plant, it is called: A. Cutting B. Layering C. Grafting D. None of the above
Answer:- C
Question:- The transfer of pollen grains the anther of a stamen to the stigma of a carpel is called: A. Germination B. Pollination C. Fertilisation D. Tissue culture
Answer:- B
Question:- Those organs which have same basic structure but different functions are called: A. Analogous organs B. Speciation C. Fossils D. Homologous organs
Answer:- C
Question:- Those organs which have different basic structure but have similar appearance and perform similar functions are called: A. Fossils B. Analogous organs C. Homologous organs D. Speciation
Answer:- B
Question:- What are those animals called which eat both plants and animals? A. Omnivores B. Herbivores C. Carnivores D. Decomposers
Answer:- A
Question:- What is the shedding of flowers, leaves and fruits followed by formation of scar tissue in a plant called? A. Abscission B. Abscisic acid C. Deciduous D. Mitosis
Answer:- A
Question:- A group of glands which produce various hormones is called: A. Respiratory system B. Excretion C. Endocrine system D. Central nervous system
Answer:- C
Question:- Organic constituents of soil formed by complete or partial decomposition of plant and animal material is called: A. Fauna B. Humus C. Fossil D. Compost
Answer:- B