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.
What is the term for the symbiotic relationship where one organism benefits and the other is harmed?
What is the main function of red blood cells?
What is the term for two identical alleles for a trait in an organism?
Which blood group is known as the universal recipient?
What is the term for a group of similar cells performing a specific function?
Which type of plant reproduction involves new plants growing from cuttings runners or bulbs?
What is the scientific name for the study of classification of organisms?
Which part of the brain controls vital involuntary functions such as breathing heart rate and blood pressure?
What type of bond holds the two strands of DNA together?
What is the term for all the populations of different species living and interacting in the same area?
Who discovered the double helix structure of DNA?
Which type of RNA brings amino acids to the ribosome during protein synthesis?
What is the term for a substance that triggers an immune response in the body?
Which process allows gases to move in and out of cells without using energy?
What is the function of the Golgi apparatus in a cell?
What is the term for the variety of life on Earth including all species ecosystems and genetic variation?
What is the term for organisms that maintain a stable internal environment despite external changes?
Which type of tissue in plants transports water and minerals from roots to leaves?
Which human organ is primarily responsible for filtering blood and producing urine?
What is the term for a permanent change in the DNA sequence of an organism?