Aurine test reveals a positive result for human chorionic gonadotropin (hcg). this indicates was successful.

Out of the following given choices.

a. ovulation 
b. gastrulation 
c. implantation 
d. fertilization

The answer is C. This is because hCG hormne is produces by the placenta. The placenta on the other hand is formed after implantation of the zygote in the uterine wall. The hormone is significant in the maintenance of the corpus luteum that produces progesterone to maintain pregnancy.

answer; i believe the correct answer is (replication is not conservative);

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.