Why don't you think we generate more electricity from tidal energy?

Which statements describe organisms referred to as "colonial"? A. A multicellular organism B. Similar bacteria or protozoa which group together C. Tissue D. A group of multiple specialized cells.

Which best defines what matter is? a. anything that can be weighed b. anything that takes up space c. anything that can be weighed but does not take up space d. anything that can be weighed and takes up space

Which of the following is an example of macroevolution? A tadpole changes form into a frog. A population of fish slowly changes tail shape. A dinosaur species evolves over time into a bird species. A black cat has kittens with white spots.

Which artificial sweetener was almost banned because of a proposed relationship with cancer in experimental animals?

Explain how some heterotrophs could be described as either a primary consumer or a secondary consumer.

Why must cell division be different between asexual reproduction and sexual reproduction? A. Sexual reproduction requires that the amount of DNA in a cell be halved. B.

Which of the following brings amino acids to the ribosome for use in translation? 1. rRNA 2. tRNA 3. mRNA

What is the process which cells in your body become different types of cells?

Which of the following statements shows an example of operant conditioning? A.) A chicken learns that if it pecks on a button, a food pellet will be released into its cage. B.) Pavlov taught a dog to salivate every time it heard a bell. C.

A scientist has several specimens from the same time period from several thousand years ago. Which two specimens should he study so that he can learn about the amount of rainfall at that time and the kinds of plants that grew then?