Barry is eating a sandwich. outline how barry could find out which food groups are present in the
sandwich.

Which of the following is a difference between a food chain and a food web? selected: a. food webs contain both plants and animals. food chains only contain animals.this answer is incorrect. b. food webs show energy transfer. food chains show which animal eats which animal. c. food webs separate organisms by tropic level. food chains do not. d. food webs are a complex patterns of energy flow. food chains only show one line of energy flow.

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer