Scientists used models of earthquakes to

2-In what way is nitrogen important to life on Earth? It is used in making DNA It is used to make chlorophyll in plants All of the above None of the Above

Chose the statement that best describes a molecule that would be soluble in water: A: The molecule is composed entirely of hydrogen and carbon atoms. B: The molecule contains a large majority of nonpolar covalent bonds. C: The molecule is neutral (i.

8. Vultures, which feed on the bodies of dead organisms, are A. first-level consumers. B. scavengers. C. producers. D. herbivores.

Wheelchair athletes can have difficulty retaining body heat when the temperature drops to approximately

What did humans accomplish that no other large animal has done?

Photosynthesis cannot happen without

Select all that apply. Which fungi are used in medicine? yeast penicillium aspergillus Rhizopus stolonifera

Trying to demonstrate a fact by testing to see if the same result occurs repeatedly is___. A) concluding. B) experimentation. C) boring. D) theorizing

Why is zachs hair dark like his mothers and not bond like his fathers

If a sample of the heat-killed bacteria is treated with a DNase would you expect transformation to occur? Explain.