The two major parts of Photosynthesis are the Calvin cycle and the light dependent reaction.
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➷ These are called 'Bryophtyes.'
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Based on the description of events, being that the lizard population appears to increase as soon as the snake population decreases, it appears that the snakes prey on the lizards. This suggests that the snake is a keystone species. A keystone species is one that has a dramatic effect on maintaining the balance of an ecosystem. As soon as the snake population decreases, major changes occur to the ecosystem, such as the lizard population increasing.
Therefore, the answer is D: <span>The snake is a keystone species in the ecosystem.</span>
Invertebrates
in- = not
vertebra = spine
