Biology MCQs
Practice free Biology multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 1146 questions — no login required.
Question 955easy
Which one is the largest cells in white blood corpuscles?
Question 956medium
Which is the innermost layer of the heart?
Question 957hard
________ is a hormone that regulates the amount of glucose in the blood.
Advertisement
Question 958hard
Which one of following is known as pace maker of endocrine gland?
Question 959hard
The rate of heartbeat is accelerated by the hormone
Question 960medium
Cortisol is secreted by
Advertisement
Question 961medium
Which one of the following hormones is essential for the uptake of glucose by cells in the human body?
Question 962medium
Goitre is caused by the deficiency of ________
Question 963medium
Endocrine glands are also known as