Practice 84 free CTET Paper II (Upper Primary: Class 6-8) Mathematics & Science - The Living World - Cell Structure Tissues Organs Systems questions with answers and step-by-step solutions.
The ion of an element has two positive charges. The mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
CTET Paper II - Feb 2026 (07 Feb), Q67 (Official PYQ)
Read the following statements :
A : Spiracles and stomata are pores through which insects and leaves exchange gases respectively.
B : Spiracles in an insect are more in number as compared to stomata in a leaf.
C : Both stomata and spiracles are present on the lower surface of leaves and insect's body respectively.
Choose the correct option.
CTET Paper II - Feb 2026 (07 Feb), Q79 (Official PYQ)
Log in or sign up free to access every question with complete solutions, create chapter practice tests, and track your performance.
Unlock every The Living World - Cell Structure Tissues Organs Systems question, generate papers, and practice at your own pace.