Analyze how scientists divide geologic time, and explain why, as scientists collect and analyze more information, the names and
the dates of different periods change.

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

Suppose you use three different scale to weigh a bag of oranges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of oranges is 2.153 lb. which of the following best decribes these results?