Which of the following is not a fossil fuel?

copper

petroleum

coal

natural gas

I'm stuck between A and B

In a biological reaction involving an enzyme, what does not directly participate in the reaction? the active site of an enzyme the active site of the substrate the inactive site of the substrate the reactant chemicals

True or false? Items such as batteries, computers and tires can always go in recycle bins.

Which statement best describes a characteristic of a scientific theory? A.~Supported by mathematics to explain a principle of nature B.~A readily demonstrable fact that cannot be disproven C.~An educated guess that is yet to be tested consistently D.

What type of chemical reaction is used by liver cells when synthesizing glycogen from glucose?

You are out and about in the country and your father sees a rock that he really wants in the yard. Now you must get the very heavy rock into the back of a truck. The truck bed is 3 feet off the ground.

Scientists are currently spending time and resources studying prokaryotes that are found in extreme and remote environments.

Does brain size matter intelligency

In fruit flies the allele for long wings (L) is dominant and the allele for short wings (l) is recessive. What is the likely genotype of a fruit fly with short wings? A. Either LL or Ll B. Either Ll or ll C. Only LL D. Only ll

Which two body systems interact with each other in order to break down and transport the nutrients found in food?

Where are the chemicals secreted by the endocrine glands released into?