Unit 1: What is life?

development:

structure and function change in an orderly way as an organism passes through its life cycle.

Atom:

Basic unit of matter

Biotic:

Living

is the molecule of inheritance. It has additional roles, but one of the main things it does is encode proteins.

DNA

To be considered alive, something must:

Be made of materials organized in a hierarchical pattern. Use energy and raw materials to survive. Sense and respond to changing environments and maintain internal stability, or homeostasis. Grow, develop, and reproduce. Be part of a population that evolves.

flows through living systems, changing forms as it goes.

Energy:

Classification of Matter:

Matter is any substance that has mass and takes up space.

Abiotic:

Nonliving

Homeostasis:

The ability or tendency of organisms and cells to maintain stable internal conditions is called..

Macromolecules:

are biologically important molecules that are technically polymers. Polymers are made by combining smaller units called monomers

Energy:

can be defined as the capacity to do work or to make a change in the location, temperature, or structure of matter.

Natural Selection:

helps explain how groups of organisms become well-suited, or adapted, to their surroundings.

Molecule:

is a chemical structure consisting of at least two atoms held together by a chemical bond.

Evolution:

is a scientific theory that explains how and why life changes over time.

Growth:

is just an increase in size.

Matter:

is traditionally defined as anything that has mass and takes up space.

reproduction:

occurs when an individual organism passes on its genetic information to a newly independent organism, or offspring.