Which of these characteristics would most likely discourage self-pollination in a flower with both stamens and pistils?
A. many more stamens than pistils
B. long pistils and short stamens
C. long stamens and short pistils
D. wind pollination
E. determinant plants
B. long pistils and short stamens
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What change would increase the rate of oxygen diffusing from lung alveoli into the blood?
A. A decrease in the pH of the blood entering the lungs B. An increase in the hemoglobin concentration of the red blood cells C. An increase in the partial pressure of oxygen in the blood entering the lungs D. An increase in the humidity of air in the lungs E. A decrease in the partial pressure of oxygen in the alveoli Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about diffusion? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Deoxygenated blood leaving the right side of the heart next passes through the ________ circuit, where the blood is reoxygenated
Fill in the blank(s) with correct word
During what eon were dinosaurs and gymnosperms the dominant organism?
a. cenozoic b. archaean c. mesozoic d. phanerozoic e. jurassic
Cellular migration occurs in developing animals, but not in developing plants.
Answer the following statement true (T) or false (F)