(Papers) CISCE : Download Class X Exam Papers-2018 (Biology)

Biology :

• Subject : Biology
• Year : 2018
• Duration : 2 Hour

1. Answers to this Paper must be written on the paper provided separately.
2. You will not be allowed to write during the first 15 minutes.
3. This time is to be spent in reading the Question Paper.
4. The time given at the head of this Paper is the time allowed for writing the answers.
5. Attempt all questions from Section I and any four questions from Section II.
6. The intended marks for questions or parts of questions are given in brackets

Question 1
(a) Name the following: [5]
(i) The organization which procures and supplies blood during an emergency.
(ii) The blood vessel which supplies blood to the liver.
(iii) The number of chromosomes present in a nerve cell of a human being.
(iv) The layer of the eyeball that forms the transparent Cornea.
(v) The wax-like layer on the epidermis of leaves which reduces transpiration

(b) Choose the correct answer from each of the four options given below:
(i) The number of Spinal nerves in a human being are:
A. 31 pairs
B. 10 pairs
C. 21 pairs
D. 30 pairs
(ii) Which one of the following is non-biodegradable?
A. DDT
B. Vegetable peel
C. Cardboard
D. Bark of trees

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