As you know, all living things require a source of nutrients. Using animals as an example, explain what these nutrients are used for once they leave the digestive tract
What will be an ideal response?
Animals need to eat so that the food molecules can enter into aerobic respiration and be converted into ATP, an energy form that can be used to drive endergonic reactions the cell needs to carry out.
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In a lotic system ____
a. there is no border between freshwater and terrestrial systems b. water stands in an open basin c. freshwater and marine systems intermix d. water flows through channels e. marshes predominate
Stomata
a. are found in the root cells. b. may be found scattered anywhere throughout the plant. c. allow the movement of gases into and out of plants. d. cause the excessive loss of water from plants. e. are more numerous on the upper surface of most leaves than on the lower surface.
Four of the five vessels listed below carry the same
quality of blood. Select the exception. a. pulmonary artery b. aorta c. hepatic portal vein d. inferior vena cava e. jugular vein
the orgasm-emission phase of the male sexual response is stimulated by
What will be an ideal response?