Why do vascular plants need phloem?
A. because they grow very tall
B. because not all parts of the plant are
photosynthetic
B
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Which of the following is most directly responsible for driving ATP synthase and the production of ATP in cellular respiration?
A. The electron transport chain pumping H+ from the mitochondrial matrix into the intermembrane space. B. The flow of electrons down the electron transport chain. C. The loss in free energy that occurs as an electron moves down the transport chain. D. The H+ electrochemical gradient across the inner mitochondria membrane. E. The ability of oxygen to rapidly capture an electron and energize ATP synthase.
Answer: c
To be a successful cell evolutionarily, the earliest cells had to:
A) consume oxygen. B) reproduce. C) have mitochondria. D) photosynthesize.
Which cranial bone spans the width of the cranial floor?
What will be an ideal response?