Environment
Non-living elements of an environment that may exert selection pressures.
What are abiotic factors?
The process by which organisms that inherit advantagous traits tend to reproduce more successfully than other organisms do,
What is Natural Selection?
Traits of a population that enable it to survive in its environment. May be structural, behavioural or physiological.
What are adaptations?
What is an unborn or unhatched offspring in the process of development termed?
What is an embryo.
All of the fossils that have been discovered are part of what?
What is the Fossil Record.
What major transformation in society coincided with a darkening of peppered moths in Britian?
What is The Industrial Revolution.
What are the five principles of Natural Selection?
V- Variation, I-Inheritance, S- Selection, T-Time,
A- Adapation
What kept the finch species separated on the islands based on the research that was done by the Grants?
What is mating songs and physical appearance.
Common bones in humans, dogs, birds, bats, and whales provide strong evidence that all 4 limbed animals with backbones descended rather recently from a common ancestor. These organisms share similar structures that perform different functions. What is this an example of?
What are homologous body structures.
How many amino acids differ from human and a rhesus monkey?
What is 8.
Selection pressures from other living things, such as predators, food sources, symbiotic partners.
What are biotic factors?
Who is known as the "Father of Evolution"?
Who is Charles Darwin
The process of forming a new species. This happens when populations become reproductively isolated from each other.
What is speciation.
These structures are present in an organism, but no longer serve an apparent purpose. What is this termed and provide the example that is found in whales.
What is a vestigal structure and the structure found in whales are pelvic bones.
One of the specifications for fossils to form is that they must be quickly covered by sediments. In which type of rock are most fossils founds?
What is a sedimentary rock.
This type of symbiotic relationship is good for both individuals.
What is mutualism?
The process in which inherited characteristics within a population change over generations such that new species sometimes arise
What is Evolution?
There are barriers that occur before zygote formation- they prevent successful mating.
What is prezygotic barriers.
The more __________ __________ two organisms have in common the more closely related they are. Example >Humans have a total chain length of 146 of them.
What are amino acids.
When interpreting information from a cladogram these are used to determine the branching patterns and indicate shared ancestry. What are these traits termed?
What are derived traits.
Microevolution is the kind of evolution that involves small changes over a short period of time, the finches of Daphne Major during the drought experienced this type of evolution. What ONE TRAIT made the greatest difference between life and death for the finches?
What is beak depth.
This refers to an organisms ability to survive in its environment and reproduce. It is the traits that help an individual survive and reproduce that are considered the most helpful.
What is "Survival of the Fittest".
A female horse has 64 chromosomes and a male donkey has 62 chromosomes. They mate and produce an offspring that is known as a mule. The mule is a hybrid. How many chromosomes will the mule have and what type of barrier is this?
The mule will have 63 chromosomes and is an example of a post-zygotic barrier.
These are diagrams that represent evolutionary relatedness of organisms.
What are cladograms.
The wings of a moth and the wings of a bat are what kind of structures and why?
What is analogous body structures because they derived independently from one another but share the same function of their structures.