Biology, 14.11.2020 21:30 59bobolucci
A small percentage of the body’s iron supply circulates freely in the blood, bound to a protein called transferrin. Transferrin binds to specific proteins on the surfaces of a cell's plasma membrane. The cell then ingests the transferrin by forming a pit, which becomes a vesicle. Which of the following BEST describes how transferrin is transported across the plasma membrane? A. exocytosis B. pinocytosis C. phagocytosis D. receptor-mediated endocytosis
Answers: 3
Biology, 22.06.2019 14:30
Explain why scientists use the word dominant for certain traits.
Answers: 1
Biology, 22.06.2019 16:20
Which example best describes a reflex action? a. eating food when hungry b. coughing when the throat is irritated c. bending down to lift a heavy object d. going for a walk outside
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Biology, 22.06.2019 16:30
In what ways does the study of human population differ from the study of wildlife ecology
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Biology, 22.06.2019 16:30
Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.
Answers: 3
A small percentage of the body’s iron supply circulates freely in the blood, bound to a protein call...
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