How does the presence of coal on antarctica indicates of coal on antarctica indicate a climate change a) the discovery of a new coal deposit means people will be able to use this fossil fuel longer b)coal deposits can tell scientist with the composition of the atmosphere was in the past c)coal is burned for a fuel and releases carbon dioxide into the atmosphere d) coal forms from the remains of plants that lived in tropical swamps millions of years ago

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a. control b. hypothesis c. procedure d. system

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae

Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.