The following two questions consist of two statements – Assertion (A) and Reason (R). Answer these questions by selecting the appropriate option given below: A. Both A and R are true, and R is the correct explanation of A. B. Both A and R are true, and R is not the correct explanation of A.
The following two questions consist of two statements – Assertion (A) and Reason (R). Answer these questions by selecting the appropriate option given below: A. Both A and R are true, and R is the correct explanation of A. B. Both A and R are true, and R is not the correct explanation of A.
A fish living in a pond ecosystem feeds on small aquatic insects (larvae). These insect larvae, in turn, feed on green algae and small photosynthetic bacteria. In this specific food chain, what is the trophic level classification of fish? A. ProducerB. Primary ConsumerC. Secondary ConsumerD. Tertiary Consumer
The male gamete of an apple plant has seventeen chromosomes. What is the number of chromosomes in the female gamete and in the cells of the adult plant respectively? A. 17,17B. 17,34C. 34,34D. 34,51
The Vas deferens and the Oviduct are both targets for surgical contraception (Vasectomy and Tubectomy respectively). Analysing the process of reproduction, what common biological event is prevented by blocking both these structures? A. The production of gametes (sperm and egg).B. The implantation of the fertilized egg into the uterine wall.C. The successful meeting and fusion
In a controlled experiment, the anthers of a mustard plant’s flowers were carefully removed in the bud stage before they matured. The bud was covered with a paper bag. What will be the most likely result for these flowers? A. They will still produce seeds and fruit through self-pollination.B. They will attract more insects and
During urine formation, tubular reabsorption and secretion take place in the kidneys. Which of the following sets correctly indicates both the substances that are reabsorbed in the kidneys? A. Glucose and saltsB. Glucose and starchC. Glycogen and saltsD. Glycogen and starch
Lime water turns cloudy in the presence of a gas, which is a by-product of respiration. Shown below are four setups kept in sunlight for 24 hours. In which setup is lime water expected to be the cloudiest? A. P B. Q C. R D. S For visually impaired students: Which of the following statement
During photosynthesis, what happens to carbon dioxide and water as glucose is formed? A. Carbon dioxide gains hydrogen, while water loses electrons.B. Carbon dioxide loses oxygen, while water gains oxygen.C. Carbon dioxide is oxidised, while water is reduced.D. Both carbon dioxide and water undergo reduction.
During photosynthesis, what happens to carbon dioxide and water as glucose is formed? Read More »
Explain the mechanism of the cleaning action of soaps.
Explain the mechanism of the cleaning action of soaps. Read More »