The puerto rican parrot population has changed a great deal throughout history, and in 1989, hurricane hugo had a big impact on the parrot’s status. describe how the population has changed and why.

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

All ova contain sex chromosomes corresponding to: x y xx xy