The answer will obviously be letter A
Answer:
The "Cambrian Explosion" refers to the sudden appearance in the fossil record of complex animals with mineralized skeletal remains. It may represent the most important evolutionary event in the history of life on Earth.
Explanation:
The reaction of which Missy has experience that is a severe
and life threatening allergic reaction due to penicillin is anaphylactic reaction,
it could be classified as the a serious and life threatening in terms of having
allergic reaction for if not treated immediately, it could cause death to the
individual who has experience this reaction. This could be triggered from
either medications, food in which an individual has consumed and insect stings
such as from bees. Missy’s allergic reaction must have triggered because of the
penicillin that she has consumed where in, she does not know that she is
allergic to the medication, having her to experience a life threatening
allergic reaction to the penicillin.
Inserting foreign genes into fertilized goats eggs
Answer:
an increase in the temperature will increase the average kinetic energy of the molecules which causes the molecules to move faster
