| Definitions | Term |
|---|
| The process in which all 4 sperm cells produced from meiosis will be used as sperm cells | |
| Gender of someone with XY sex chromosomes | |
| For every trait each individual has two alleles | |
| The phenotypic ratio of a dihybrid cross between two heterozygous parents | |
| The number of chromosomes in each of four daughter cells after meiosis in humans | |
| Selection pressures that favor the two extremes of a phenotype | |
| The scientist who believed that profound change could take place through the cumulative effect of slow but continuous processes | |
| True or False: Organisms that are more adapt to their environment are always very fit | |
| An event that kills off the majority of the population randomly | |
| Things such as different behaviors or habitats that prevent similar species from mating | |
| Changes confined to a single gene pool | |
| The formation of a new species in the same place as the original species | |
| Having extra chromosomes | |
| The first step of natural selection | |
| Different structures with similar functions | |
| The study of the evolutionary relationships between species | |
| Period of time when most complex organisms appeared millions of years ago | |
| The type of evolution in which animals with a common ancestor fill different roles in an environment | |
| Structures must have been important in some ancestral form, but became redundant in later species | |
| The number of kingdoms | |
| A large molecule made up of monomers | |
| Polar is to hydrophilic as _________ is to hydrophobic | |
| The stage of the cell cycle that DNA is replicated during | |
| A reaction that breaks down molecules into smaller pieces and released energy | |
| This element has an atomic number of 8 | |
The Nine Planets 
Digits of Pi 
Multiplication Table
