Chapter 1

____________ are fundamental building blocks of all matter. a. Atoms b. Molecules c. Cells d. Organisms

The smallest unit of life is the ___________ . a. atom b. molecule c. cell d. organism

Organisms require _________ and ____________themselves, grow, and reproduce. a. DNA; energy b. food; sunlight c. nutrients; energy d. DNA; cells

By sensing and responding to change, organisms keep conditions in the internal environment within ranges that cells can tolerate. This process is called _____________.

DNA ____________ . a. guides form and function b. is the basis of traits c. is transmitted from parents to offspring d. all of the above

A process by which an organism produces offspring is called ____________ . a. reproduction b. development c. homeostasis d. inheritance

____________ is the transmission of DNA to offspring. a. Reproduction b. Development c. Homeostasis d. Inheritance

A butterfly is a(n) __________ (choose all that apply). a. organism b. domain c. species d. eukaryote e. consumer f. producer g. prokaryote h. trait

A bacterium is __________ (choose all that apply). a. an organism b. single-celled c. an animal d. a eukaryote

A control group is _________ . a. a set of individuals that have a certain characteristic or receive a certain treatment b. the standard against which an experimental group is compared c. the experiment that gives conclusive results

Fifteen randomly selected students are found to be taller than 6 feet. The researchers concluded that the average height of a student is greater than 6 feet. This is an example of ____________ . a. experimental error b. sampling error c. a subjective opinion d. experimental bias

Science only addresses that which is _____________ . a. alive b. observable c. variable d. indisputable

Match the terms with the most suitable description. a. if-then statement b. unique type of organism c. emerges with cells d. testable explanation e. measure of chance f. makes its own food life probability species hypothesis prediction producer