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 part of the human brain is responsible for voluntary movement and higher cognitive functions?
Which part of the respiratory system is the primary site of gas exchange?
What is the term for an interconnected network of food chains in an ecosystem?
Which type of cell division produces gametes with half the chromosome number?
What term describes the specific molecule an enzyme acts upon?
What is the process by which white blood cells engulf and digest bacteria and foreign particles?
What is the process by which cells engulf large particles by wrapping the cell membrane around them?
Which plant hormone signals guard cells to close stomata during drought conditions?
What is the term for the movement of water from a region of high water concentration to low concentration through a semipermeable membrane?
What is the broadest level of biological classification?
Which hormone regulates blood glucose levels by promoting its uptake by cells?
What is the term for organisms that live inside or on another organism and cause it harm?
Which kingdom includes organisms like mushrooms and yeast?
Which process copies DNA information into mRNA in the nucleus?
What is the process by which organisms break down glucose to release energy?
Which organelle within the nucleus is responsible for producing ribosomal RNA?
Which gas is released by plants as a byproduct of photosynthesis?
What is the deficiency disease caused by lack of Vitamin D in children?
What is the term for the variety of different species present in a given habitat?
Which type of reproduction involves only one parent and produces genetically identical offspring?