Please select a subject first
Advertisements
Advertisements
Wild buffalo is an endangered species because
Concept: undefined >> undefined
Which one of the following changes may occur due to desertification?
Concept: undefined >> undefined
Advertisements
The places meant for conservation of biodiversity in their natural habitat are
- Zoological garden
- Botanical garden
- Wildlife sanctuary
- National park
Concept: undefined >> undefined
Which of the following feature is correct for a wildlife sanctuary?
Concept: undefined >> undefined
How are even small animals important in an ecosystem?
Concept: undefined >> undefined
Does soil erosion affect the fertility of soil? How?
Concept: undefined >> undefined
Unscramble the underlined word in the following sentence.
Dannalier helps the body to adjust and fight the stress.
Concept: undefined >> undefined
Complete the following sentence.
In females, the uterine wall thickens to receive the ______.
Concept: undefined >> undefined
Complete the following sentence.
Release of sex hormones is under the control of a hormone secreted from the ______.
Concept: undefined >> undefined
Give a suitable word for the following statement.
The site which responds to a hormone.
Concept: undefined >> undefined
Give a suitable word for the following statement.
Chemicals which control changes at adolescence stage.
Concept: undefined >> undefined
Name the female hormone produced by ovaries that helps in development of mammary glands.
Concept: undefined >> undefined
Match the hormones given in Column A with their deficiency disease given in Column B.
| Column A | Column B |
| (a) thyroxine | (i) salt imbalance |
| (b) growth hormone | (ii) diabetes |
| (c) Insulin | (iii) goitre |
| (d) Adrenal hormone | (iv) dwarfism |
Concept: undefined >> undefined
Name the hormone which would be released during the following situations:
- A frightened person.
- Growth of a child to adult.
- Development of caterpillar to moth.
- Development of tadpole to frog.
Concept: undefined >> undefined
In human females, each time during maturation and release of egg the inner wall of uterus thickens. Is this thickening permanent? Give reasons.
Concept: undefined >> undefined
A toy car released with the same initial speed will travel farthest on
Concept: undefined >> undefined
Which of the following statements is incorrect?
Concept: undefined >> undefined
In a large commercial complex there are four ways to reach the main road. One of the path has loose soil, the second is laid with polished marble, the third is laid with bricks and the fourth has gravel surface. It is raining heavily and Paheli wishes to reach the main road. The path on which she is least likely to slip is ______.
Concept: undefined >> undefined
Imagine that an object is falling through a long straight glass tube held vertical, air has been removed completely from the tube. The object does not touch the walls of the tube. Will the object experience any force of friction?
Concept: undefined >> undefined
Is there a force of friction between the wheels of a moving train and iron rails? If yes, name the type of friction. If an air cushion can be introduced between the wheel and the rail, what effect will it have on the friction?
Concept: undefined >> undefined
