Chapters 1 & 2 - Introduction, Chem. level of organization

❌ is the development of a cell from an ❌ state to a ❌ one.

A ❌ Feedback System ❌ a change in a controlled condition. in this system when blood pressure ❌, the body will respond by ❌ the blood pressure.

❌ are ❌ that speed up chemical reactions but do not become part of the product created.

❌: This is the very ❌ level of anatomy, like the letters of the alphabet. It includes ❌, the smallest units of matter that participate in chemical reactions, and ❌, two or more atoms joined together

❌: ❌ combine to form ❌, the basic living, structural and functional units of an organism that are compose of chemicals. Just like words are the smallest elements of language that make sense, so too are our cells, the smallest living thing in the body.

❌: ❌ are groups of ❌ surrounding them that work together to perform a particular function, similar to the way words are put together to form sentences.

❌: At the ❌, different types of ❌. Organs are structures that are composed of two or more different types of tissues; they have a specific function and usually have ❌. Similar to the relationship between sentences and paragraphs

❌ different ❌ normally are present in your body.
❌ of the elements, ❌ , carbon (C), ❌, and nitrogen (N), are ❌ elements, constituting about 96% of the body’s mass.

The body regulates its ❌ environment using ❌ of ❌. A feedback system, or ❌, is a ❌ in which a body ❌ is ❌, evaluated, changed, and adjusted accordingly. Each factor being monitored, such as body temperature, blood pressure, or blood glucose level, is ❌. Any disruption that changes a controlled condition is called a stimulus. For example, the body tightly regulates how much glucose is in the blood. If there is ❌, energy reactions may not take place efficiently. If there is ❌, glucose can damage blood vessels.