The number above the element's symbol is the element's atomic number. Match each element with the number of valence electrons it has.

Explain why the first snowfall of the winter usually "sticks" better to tree branches than to bare ground.

5. Does a reptile play the same role as a bird in the West Nile virus?

5. Based on your reading, what makes it so that you are able to literally walk on the ocean floor in the Bay of Fundy?

Not the same as 12.5 millimeters? 0.0000125 km 0.00125 hm 0.0125 m 1.25 cm

Are species in the same family more or less closely related than species in the same class? Explain your answer.

How does skin prevent entry of micro organism in the body

Hank likes to explore nearby streams during the summer. However, one winter there is a lot of rain near the stream. How might the stream change before the next summer? A. The stream will have dried up. B. The stream water will be shallower. C.

A woman with rheumatoid arthritis has taken leflunomide for 1 year. she telephones a nurse and says that the result of a home pregnancy test was positive. the nurse should:

Which of Mendel's laws or principles states that gametes carry one allele for each trait?

What is not a name for a chain of amino acids