On an average, the number of students that choose to study arts subjects at greyin tide university is 12 each year. (hint: use poisson distribution formula). What is the probability that exactly 15 students will take up arts in the coming year?

The different forms of a gene for a given trait are called .

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.

Healing after the death of a loved one is most difficult when: a) the bereaved is not allowed to mourn in the way he or she wishes b) the death is a long, protracted one c.) a period of grief has already elapsed d) no other mourners are present