All of the Above
Molecules that combine to form proteins
Amino acid
A thread-like structure in the nucleus of a cell that carries genetic information (genes).
Chromosome
A series of events that takes place in a cell as it grows and divides.
Cell cycle
The organs that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair.
Digestive System
The main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body.
Heart
A biological interaction where two or more species benefit from each other.
Mutualism
A specific characteristic that can be inherited from parents, like eye color or hair color.
Trait
The process by which a cell splits into two daughter cells
Cell division
Biological system that removes excess, unnecessary materials from the body fluids of an organism.
Excretory System
A pair of organs in the chest cavity that are responsible for gas exchange, which is the process of moving oxygen into the body and removing carbon dioxide
Lungs
Any living thing
Organism
A molecule in all cells, and many viruses, that contains genetic codes for inheritance.
Deoxyribonucleic Acid (DNA)
Any cell or organism that possesses a clearly defined nucleus.
Eukaryote
Exchanges carbon dioxide for oxygen in the blood and removes carbon dioxide from the body.
Respiratory System
While its exact function in humans is unknown, it is a small, finger-shaped organ that is attached to the large intestine in the lower right abdomen.
Appendix
A specific characteristic of an individual.
Trait
A change in the DNA sequence of an organism which can be caused by errors in DNA replication or exposure to environmental agents that damage DNA.
Mutation
An organism whose cells lack a nucleus and other organelles
The system that contains the heart and the blood vessels and moves blood throughout the body.
Circulatory System
The largest organ in the human body, weighing about 3 pounds and located in the upper right abdomen
Liver
The process by which living organisms maintain a steady internal environment, despite changes in their external environment.
Homeostasis
The study of how genes are passed from parents to their children, and how genes interact with the environment and DNA variation.
Genetics
An organism that consists of more than one cell, unlike unicellular organisms
Multicellular Organism
The body's control system, made up of the brain, spinal cord, and nerves, which sends, receives, and processes nerve impulses.
Nervous System
A large gland in the back of your belly which releases enzymes to help with digestion and hormones to regulate blood sugar.
Pancreas