| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.91 |
| Score | 0% | 58% |
In the classification of life, which of the following is not a kingdom?
plants |
|
bacteria |
|
fungi |
|
animals |
Below domain, life is classified into six kingdoms: plants, animals, archaebacteria, eubacteria, and fungi. The last kingdom, protists, include all microscopic organisms that are not bacteria, animals, plants or fungi. (Archaebacteria and eubacteria are sometimes combined into a single kingdom, monera.)
Which of the following states of matter exists at the highest temperature?
liquid |
|
solid |
|
none of these |
|
gas |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
Molecules and atoms that are inputs to a chemical reaction are known as which of the following?
fuel |
|
reactants |
|
components |
|
products |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
Which of the following is not a characteristic of the Sun?
makes up over 99% of the mass of the solar system |
|
is a yellow dwarf star |
|
formed 2.6 billion years ago |
|
is composed of hydrogen and helium |
The Sun is a G-type main-sequence star (G2V) but is informally known as a yellow dwarf star. Composed of 73% hydrogen and 25% helium, the hot plasma that makes up the Sun reaches 9,900°F (5,505°C) at the surface. It formed approximately 4.6 billion years ago and makes up 99.86% of the mass in the solar system.
The most diverse kindgom of life is which of the following?
plants |
|
protists |
|
animals |
|
fungi |
Below domain, life is classified into six kingdoms: plants, animals, archaebacteria, eubacteria, and fungi. The last kingdom, protists, include all microscopic organisms that are not bacteria, animals, plants or fungi. (Archaebacteria and eubacteria are sometimes combined into a single kingdom, monera.)