The diffusion of oxygen from the lungs into the bloodstream is an example of molecular motion driven by _____.

Which subatomic particle carries a positive charge and is located in the nucleus of an atom?

Organisms belonging to the domain Archaea are characterized by ______.

When classifying two newly discovered organisms, a scientist finds that they share 98% of their DNA sequence and have very similar bone structures. These findings would primarily be used to determine their classification based on ______.

Which of the following is a fundamental tenet of the cell theory?

A nurse collects information about a patient’s vital signs, medical history, and current symptoms. This activity falls under which step of the nursing process?

Which of the following best defines endosymbiosis?

This organelle modifies, sorts, and packages proteins and lipids into vesicles for secretion or delivery to other organelles.

A scientist constructs a tree-like diagram showing how different species of bears evolved from a common ancestor over millions of years. This diagram is an example of what concept?

A biologist is studying how different types of cells, such as muscle cells and nerve cells, combine to form structures with specific functions in the human body. At which level of biological organization is this biologist primarily working?