True. Prefixes like 'mono' mean there's one atom, etc
The answer not in scientific notation is 65280000
Yes, Sally is meeting the AHA and ACSM minimum recommendations for physical activity.
AHA, that is, American Heart Association refers to a non-profit organization in the United States, which encourages suitable cardiac care in an attempt to minimize disability and deaths resulting due to stroke and cardiovascular disorder.
The ACSM, that is, American College of Sports Medicine refers to a huge exercise science and sports medicine membership organization. It integrates and promotes scientific research, practical application of sports, medicine, education, and exercise science to enhance and maintain physical performance, health, fitness, and quality of life.
Molecule - they have a wide range of sizes and structures and perform a vast array of functions.
cell - consist of cytoplasm enclosed within a membrane, which contains many biomolecules such as proteins and nucleic acids
tissue - an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function
population - same species that live in a particular geographic area at the same time
organ system - organs that work together as a biological system to perform one or more functions
ecosystem - community of living organisms in conjunction with the nonliving components of their environment