How does an atom become a positive ion?
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a. it gains an electron.
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b. it loses a neutron.
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c. it loses an electron.
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d. it gains a neutron.

Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service

What organ systems are working to you cool down after a workout?