I am pretty sure that the answer is a, genetic engineering. i hope this helps :)
Answer:
B
Explanation:
If a curl-up is the same as a sit-up, then B should be the answer.
i don’t really understand the question could you word it better
Answer:
A. Mumps
Explanation:
Viral infection mumps cause swelling of the salivary glands. Swelling happens in parotid glands on both sides of the face, giving the appearance of "chipmunk cheeks." Salivary gland swelling is commonly associated with mumps, happening in about 30% to 40% of mumps infections