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Biology Vocabulary

Across
Change in genetic makeup.
This is an organism/'s chance of survival.
Random change in the DNA sequence.
When 2 or more organisms or populations in a community rely or need similar limiting resources.
This term is used to describe the fact that there are only a set amount of resources available.
These are the parents, parents of parents, etc.
These are the groups of reproducing populations that are isolated from other groups.
These are physical features shared by organisms with common ancestry.
An organism facing extinction through destruction of habitat; the process may threaten the survival, abundance or evolutionary development of the species.
The condition where an organism/'s numbers exceed carrying capacity.
All the individuals of a species that live together in one place at the same time.
Organisms brought into a new environment.
The ceasing of the existence of any particular species.
Suggests that species adapt and change by natural selection and the changes aid in the survival of the organism.
Down
The conditions that surround someone or something.
The process of organisms adapting to their environments overtime.
The process by which organisms acquire traits through sexual reproduction and/or mutation and then pass on these traits to the succeeding generations.
Number and variety of living organisms; includes genetic, species, and ecological types.
A biochemical process used for determining the order of the nucleotide bases, adenine, guanine, cytosine, and thymine, in any DNA molecule.
These are the nonliving factors of the environment.