False, <span>they were not Toxic was actually poinsonous to the Anaerobic photoautotrophs. However </span><span>cyanobacteria (a.k.a pondscum) </span><span>is believed to be the first bacteria to give off oxygen as a by-product of photosynthetic processes.</span>
As baleen whale number increase in the antarctic the seal population decreases.These is because baleen whale is predictor to seal while sea is the prey. An increase in number of baleen whale led to decrease of number of seal since more seal will be required to feed the baleen whale.
Answer:
no
Explanation:
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