Answer:
True
Explanation:
The species that went extinct could be a food source for another and that would possibly be detrimental to the chain.
Answer:
Since sea urchins are picky, they are used as indicator organisms in public aquariums to determine if the system is functioning properly. This is because they are very "picky" about water quality. If the water is contaminated, the sea urchins will be the first to show signs of stress, spines laying down or falling off. Do use an aquarium filter and do clean up the day after feeding. Any metal exposed to the seawater will corrode and poison the tank. A dying sea urchin will often spawn out and rot out, causing the others in the tank to spawn and die as welll.
Explanation:
Adaptation through natural selection
Answer: Option B) inability to digest proteins
Explanation:
The pancreas secretes trypsin, a proteolytic enzyme, that acts on proteins cleaving its peptide bonds, and eventually yielding peptones or polypeptides.
Thus, in the absence of pancreas protein digestion would be a problem
