It's (B) A catastrophic event where 90 percent of the ocean's species were lost and 70 percent of the land life was thought to go extinct.
Answer:
In medicine, genetic engineering has been used to mass-produce insulin, human growth hormones, follistim (for treating infertility), human albumin, monoclonal antibodies, antihemophilic factors, vaccines, and many other drugs. In research, organisms are genetically engineered to discover the functions of certain genes.
Explanation:
the top one is correct i thinkTHE BRAINLIEST ANSWER!
Kristybred Helping Hand
C. ^3 sqrt 4x^2
I'm not sure how to do this but the online assignment I just did says this is the correct answer.
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The answer would be mouth and stomach