1. In the Emission Spectra tool, select each element to see its emission spectrum.

2. In the data table below, record the element symbol, atomic number, the
lowest wavelength present in the spectrum (in nanometers), the highest
wavelength in the spectrum (in nanometers), and the total number of lines in
the spectrum.

3. Watch for any patterns in the spectra. For example, is there any correlation
between an element’s atomic number and the lowest or highest wavelength
in its spectrum? Do larger elements consistently have more spectral lines?

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.