Why is a food web a better representation of relationships within an ecosystem than a food chain? a. a food chain shows that most organisms consume and are consumed by more than one organism. b. a food web shows a single pathway of energy flow through the ecosystem. c. a food chain shows only a single pathway of energy. d. a food web shows that most organisms consume and are consumed by more than one organism.

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !