1. What does rotation mean? 2. What is the rotation of the Earth?
3. What does revolution mean?
4. What is the revolution of the Earth around the Sun?
5. How long does the rotation of the Earth take?
6. What is one rotation of the Earth called?
7. About how long does the revolution of the Earth around the Sun take?
8. What is the revolution of the Earth around the Sun called?
9. How fast does the Earth spin?
10. How much of the Earth is lighted up at any given time? (day or night will have the same answer)
11. In what direction does the Earth rotate?
12. What is the angle of the Earth's axis?
13. What is perihelion?
14. What is aphelion?

Drag each label to the correct location on the image. each label can be used more than once. a scientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions. protein will not be changed. protein may be changed. attcgtgttc atcgtgttc atcgtattc attcgtattc

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

The diagram below represents a marine food web and a process that can harm the human population. each circle represents an organism and the smaller dots inside them represent a toxic substance. what is being represented and how does it harm the population? the diagram represents biological half-life, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents biomagnification, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents the process by which different organisms prey upon each other; this can impact the human population by reducing the number of organisms that do not contain the toxin. the diagram represents the way that toxins are metabolized by living organisms, with those at greater trophic levels able to metabolize more efficiently than those at lower levels. this means that those at higher tropic levels are safer for humans to consume compared to the organisms at lower trophic levels.