Chapter 1: The Science of Biology

The combination of chemical reactions through which an organism builds up or breaks down materials

The relatively constant internal physical and chemical conditions that organisms maintain

The genetic material that organisms inherit from their parents

The goals of science are to give explanations for ________, understand patterns, and make predictions.

________ and animals are multicellular.

A signal to which an organism responds

The smallest units considered fully alive

________ lead to new technology and new technology leads to ________.

All ________ on Earth are connected into a biosphere.

Are made up of only a single cell

The study of life

A well-tested explanation that unifies a broad range of observations and hypotheses, and enables scientists to make accurate predictions about new situations

Living things maintain a(n) ________.

Living things are based on a(n) ________.

________ get energy from sunlight and take up nutrients from air, water, and soil.

Evidence; information gathered from observations

________ is a process, not a "thing.

Most animals eat ________ or other animals to get both nutrients and energy.

An organized way of gathering and analyzing evidence about the natural world

A process of noticing and describing events or processes in a careful, orderly way

A possible explanation for a set of observations or a possible answer to a scientific question

An experiment in which only one variable is changed

The group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable

people want cars that do not cause air pollution

A particular preference or point of view that is personal, rather than scientific

The part of Earth in which life exists, including land, water, and air or atmosphere

Most plants and animals engage in _______, in which cells from two parents come together to form the first cell of a new living thing.

Other living things reproduce through _______, in which a single living thing makes offspring exactly the same as itself.

Explores how the world is affected by everything that living things do

A field based on the ability to read, write, and edit the genetic code

A system of measurement in which units are based on multiples of 10

Ideas based on what is already known

The variable that changes

The variable that is observed and that changes because of modifications to the independent variable

Numbers found by counting or measuring

Describe things that cannot be counted