Day 69: CBSE Class 10 Science
5 questions. Try each one first, then open its answer.
Question 1
Control and Coordination. This type asked 2 times: 2023, 2025. This one: 2025
8Electrical impulse travels in a neuron fromTap an option to check your answer.
Question 2
Electricity. This type asked 2 times: 2024, 2025. This one: 2025
27(a) Define one volt potential difference between two points in an electric field. (b) Draw a schematic diagram of an electric circuit of a cell of V, and resistor and a plug key, all connected in series. Calculate the current drawn from the cell when the key is closed.Question 3
Heredity. This type asked 2 times: 2024, 2025. This one: 2025
Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.19Assertion (A) : In reptiles, the temperature at which the fertilized eggs are kept decides the sex of the offsprings. Reason (R) : Sex is not genetically determined in some animals.Tap an option to check your answer.
Question 4
How do Organisms Reproduce?. This type asked 2 times: 2024, 2025. This one: 2025
10The number of chromosomes in a cell division is halved. This kind of cell division is observed in :Tap an option to check your answer.
Question 5
How do Organisms Reproduce?. This type asked 2 times: 2024, 2025. This one: 2025
10The correct/true statement(s) for a bisexual flower is/are : (i) They possess both stamen and pistil. (ii) They possess either stamen or pistil. (iii) They exhibit either self-pollination or cross-pollination. (iv) They cannot produce fruits on their own.Tap an option to check your answer.