Cell membrane, Organells, flagella
We can confirm that the absence of photosynthesis on Earth would cause a mass extinction of most of the species on the planet.
<h3 /><h3>Why would the absence of photosynthesis be so harmful?</h3>
The process of photosynthesis is extremely important as it produces oxygen as a byproduct. The absence of this process on Earth would limit the available oxygen in the atmosphere which would at some point be entirely consumed. From then on, most species on the planet would die out as they require oxygen to live. Most plant species would also die off as they use photosynthesis to sustain life.
Therefore, we can confirm that the absence of photosynthesis on planet Earth could be considered an apocalyptic event as it would cause a near-complete extinction of life on the planet.
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(15) Label 1 is D
(16) Label 2 is A
(17) Label 3 is B
(18) Label 4 is C
Answer:
Prokaryotes have a nucleus, Eukaryotes don't
Explanation:
(see image)
