Complete metamorphosis would include egg, larva, pupa and adult.

The stinging cells of cnidarians are called __________________.

Tapeworms consist of repeating units, each of which contains a complete set of male and female reproductive structures. These repeating units are called a __________________.

All of the following animals are mollusks except

Here is a diagram showing the 2s orbital. In this diagram what do the dark areas represent?

Mr. DeBroglie proposed that all matter has dual nature. The wavelength of any particle is related to its momentum by this equation: Which of these is the best explanation of why we don’t notice wave behavior in large objects like baseballs, but it is fairly easily detected in small objects like electrons?

This diagram depicts the energies of a few shells (energy levels) for the atom that produced the spectrum above. Image Description Diagram of five lines of energy levels drawn horizontally. n=1 is at the bottom and n=5 is at the top. Starting from the top, the line n=5 is shown. Moving downward, there is a small gap between the line n=5 and n=4, a slightly larger gap between n=4 and n=3, an even larger gap between n=3 and n=2, and a very large gap is shown between n=2 and n=1. Which of these situations would cause the atom to emit the highest frequency photon?

Why was Rutherford’s “solar system” model of the atom inadequate to explain discrete emission spectra? (The Rutherford model had more than one shortcoming. The question asks about the problem specifically associated with discrete spectra.)

Electrons are sent one at a time through a single slit. This slit is about the width of an atom. The slit can be adjusted to make it wider or narrower. Each electron is later detected using a screen that produces a spot of light wherever it is hit by a charged particle. If the slit is made narrower in an attempt to know exactly where each electron is when it passes through the slit, how does this affect the results?

In his forum, Dr. William Phillips stated that his belief in God was not scientific, although it was rational. Why did he say it wasn’t scientific?