Karie read the following definition of the term scientific method: “the series of steps that scientists use to answer questions and solve problems” choose one of the answers below. a. yes, affect scientific method is always the most efficient way to test a hypothesize b. no, scientists only follow a fixed scientific method if their investigation does not validate their hypothesis. c. yes, and investigation is not valid unless it follows a fix scientific method. d. no, most investigations cannot be performed using a fixed procedure of steps.

In which situations is the principle of cross-cutting relationship useful in determining relative age?

This comparative chart is an example of one that might be used by scientists and law enforcement personnel for identification purposes. the chart represents a technological advance called

Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.