Questions Based on High Order Thinking Skills (HOTS)
Lakhmir Singh Science Solutions for Exercise - Questions Based on High Order Thinking Skills (HOTS)
Simple step-by-step solutions to Questions Based on High Order Thinking Skills (HOTS) questions of Reaching the Age of Adolescence from Lakhmir Singh's SCIENCE FOR CLASS 8. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from Questions Based on High Order Thinking Skills (HOTS) with Hints & Solutions
When a human female reaches a certain age, then vaginal bleeding occurs for a few days after regular intervals of time: At what particular event in the life of a human female this process stops temporarily but starts again?
When a human female reaches a certain age, then vaginal bleeding occurs for a few days after regular intervals of time:
What name is given to the event when this process stops permanently?
A woman is in her reproductive phase of life. Even when the sperms are available at the time of release of a mature ovum by her ovary, fertilisation does not take place. Due to this, the woman is unable to bear a baby.
What is the most likely defect in the reproductive system of this woman ?
A woman is in her reproductive phase of life. Even when the sperms are available at the time of release of a mature ovum by her ovary, fertilisation does not take place. Due to this, the woman is unable to bear a baby.
Name the technique by which this woman can also have a baby. (Write the full form.)
Raj Kumar and his wife Sunita have been blessed with a baby girl. On the other hand, Kripa Shanker and his wife Vimla have been blessed with a baby boy. What type of sex chromosome has been contributed :
(a) by Raj Kumar (b) by Sunita (c) by Kirpa Shanker (d) by Vimla
A gland W is located just below the stomach in the human body. The gland W secrets a hormone X. The deficiency of hormone X in the body causes a disease Y in which the blood sugar level of a person rises too much. The person having high blood sugar is called Z. What are W, X, Y and Z?
It was observed that the tadpoles are not growing into adult frogs in a village pond. A scientist who was asked to find the reason for this concluded that the pond water did not contain sufficient amount of a mineral P which could make a hormone Q. The hormone Q can cause a phenomenon R in tadpoles so that they become adult frogs.
What are (i) P (ii) Q, and (iii) R ?
It was observed that the tadpoles are not growing into adult frogs in a village pond. A scientist who was asked to find the reason for this concluded that the pond water did not contain sufficient amount of a mineral P which could make a hormone Q. The hormone Q can cause a phenomenon R in tadpoles so that they become adult frogs.
Name one human disease which can also be caused due to the deficiency of P in food and water. (Anaemia/ Goitre/Scurvy)
