The city of San Francisco reported more missing dogs the week before a massive earthquake than any other week of the year. Explanation: Dogs can sense impending danger. Which resource would you use to determine whether this explanation is vaild?
A)
education websites
B)
blogs
C)
lifestyle magazines
D)
newspaper

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Select the correct answer from each drop-down menu the images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that the archaeopteryx and bird have wings, while dinosaurs have limhe se it can be concluded that

What is the meaning of endocytosis ?