Vitamin water contains about as many calories as a soft drink. a. true b. false

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.