Natural Selection (survival of the fittest)
How does Evolution work?
individuals in a population vary from one another
A natural process resulting in the evolution of organisms best adapted to the environment.
a representation of an object or event
a living thing
an imitation, a representation, or a reproduction of a situation or an experience
characteristic (ie: physical structure/ form) that an organism can pass on to its offspring through its genes
blue print or instructions to build a body structure and it is passed from parents to offspring (children)
* the act of concealing the identity of something by modifying its appearance * blending into the environment
A group of similar organisms that can breed and produce fertile offspring.
producing or promoting a favorable result; helpful
English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
An animal that hunts other animals for food
Animal hunted or caught for food
group of individuals of the same species that live in the same area
the production of offspring
individuals in a population vary (differ) from each other
Shape or visual appearance of an object or organism
the use or purpose of something
mutation that makes it easier to survive long enough to reproduce (eg: camouflage to hide from predators)
mutation that makes it harder to survive (ie: dies before it can reproduce)
anything in the environment that makes a mutation beneficial or harmful and results in certain alleles becoming more common in the population
the struggle between organisms to survive in a habitat with limited resources
the complete loss of a species from an area
errors in DNA code or its translation can be positive, negative or neutral
selective breeding of plants and animals to promote the occurrence of desirable traits in offspring
determines which variation/ mutation is positive (+)
Parents pass on their traits to their offspring genetically example: Fish & Chips- winners (survives the predator) became parents and passed the mutation to the offspring. Bunny Survival Game- brown bunny pass down traits to offspring which is brown in a desert environment.
successful variation accumulate over many generation
a structure that becomes common in a population due to natural selection, because it provides improved function.
the change in the population over time where one trait (adaptation) becomes more common example: Fish n' Chips- red color becomes more advantageous in the red lake environment
Survival of the Fittest
the continued existence of organisms that are best adapted to their environment
the selective forces in the environment that make it difficult for organisms to survive ex) predators, competition for resources/mates
a new organism that is the product of reproduction
* The middle step in the process of DNA coding for a trait * Includes the parts and the assembly of the parts to make a trait
one of the alternative forms of a gene that governs a characteristic, such as eye color
A complex molecule containing the genetic information that makes up the chromosomes.
threadlike structures made of DNA molecules that contain the genes
one step in the line of descent of a family
The production of genetically identical offspring from a single parent
A chart that shows all the possible combinations of alleles that can result from a genetic cross
an exact duplicate
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