Build a clear understanding of living organisms, cells, genetics, human systems and the environment through carefully selected practice questions.
Questions are tracked as practiced when you open Show Answer & Explanation. Tracking stays only in this browser tab and no subject-test result is saved.
Which structure in flowering plants contains ovules that develop into seeds after fertilisation?
How many chambers does the human heart have?
What is the chemical messenger secreted by endocrine glands into the bloodstream called?
What is the term for a community of organisms interacting with their physical environment?
What is the process by which green plants make their own food using sunlight?
What is the term for proteins produced by B lymphocytes in response to specific antigens?
What term describes two different species living together where both benefit?
Which scientist proposed the theory of evolution by natural selection?
Which type of tissue in plants transports dissolved food from leaves to other parts?
What is the process by which organisms adapt to extreme cold by entering a state of dormancy?
Which branch of biology deals with the study of viruses?
Which part of the eye controls the amount of light entering it?
Which type of organisms break down dead organic matter into simpler inorganic substances?