What is the advantage to the sphinx moth Xanthopan morgani by having an 8-inch long tongue? A) It is used to attract mates through sexual selection
B) It can only pollinate one type of flower
C) It makes flying more efficient
D) It can be used to capture other flying insects for food
E) It can reach nectar that no other pollinator can reach

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

Solutions to environmental problems in europe must