Answer:
lo sient yo no hablo espanol
Explanation:
Scientists believe that over 99% of species that once existed on Earth are now extinct.
D. over 99 percent
C) A lung
Mark with crown if correct!
Explanation:
Transgenic animals are routinely bred to carry human genes, or mutations in specific genes, thus allowing the study of the progression and genetic determinants of various diseases.
Transgenesis allows improvement of nutrients in animal products, including their quantity, the quality of the whole food, and specific nutritional composition.