Day 88: CBSE Class 10 Science
5 questions. Try each one first, then open its answer.
Question 1
Control and Coordination. Asked once: 2026 (same type asked 3 times)
Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.9Assertion (A) : Plants have hormones that do not control directional growth. Reason (R) : Abscisic acid inhibits growth.Tap an option to check your answer.
Question 2
Control and Coordination. Asked once: 2025 (same type asked 3 times)
9A pair of endocrine glands located in the human brain isTap an option to check your answer.
Question 3
Control and Coordination. Asked once: 2024 (same type asked 3 times)
10In a nerve cell, the site where the electrical impulse is converted into a chemical signal is known as :Tap an option to check your answer.
Question 4
Electricity. Asked once: 2024 (same type asked 3 times)
15Study the I-V graph for three resistors of resistances , and and select the correct statement from the following :Tap an option to check your answer.
Question 5
Heredity. Asked once: 2026 (same type asked 3 times)
13(a) A couple are parents to 4 daughters in a sequence, and do not have any son. Does this indicate that the husband does not produced Y-chromosome bearing sperms ? Explain. (b) What are the chances of this couple bearing yet another daughter ? Show with the help of a cross.