Biology, 06.10.2019 15:40 chrissyg76
Ellen has eggs she wishes to trade for grain. however, she cannot find anyone with grain that needs eggs. what is missing for the exchange to occur?
a. compound interest
b. store of value
c. present value
d. deferred payment
e. double coincidence of wants
Answers: 3
Biology, 22.06.2019 01:10, Claysn9094
Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot. active transport involves transport proteins, and facilitated diffusion does not. facilitated diffusion involves transport proteins, and active transport does not. active transport requires the expenditure of cellular energy, and facilitated diffusion does not.
Answers: 1
Biology, 22.06.2019 03:00, LaneyMM1401
Which sentence best describes the relationship between chlorophyll and the chloroplast? a.) chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.
Answers: 2
Biology, 22.06.2019 10:00, AM28
Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?
Answers: 2
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