False. Their exoskeletons are made of silica.
Bias is having emotional input or a preconceived notion of something.
example: you are judging a contest and your best friend is in that contest. you would want your friend to win, therefore you have bias
There will be sharp increase in the natality rate in sharks which alert the government so they will be not come under endangered species.
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What is endangered species?</h3>
A species considered to be facing a very high risk of extinction in the wild is called endangered species.
There are some solution has been tested by the scientist so that they can find that what makes increase in natality rate, incase if there is toxic chemical or anything in water. Ban of shark fishier will also help in shark conservation.
Learn more about endangered species here:
brainly.com/question/10415903
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