Evolution 1
The change of characteristics or other features in a species over several generations typically for better fitness to its environment.
Evolution
A group of Kangaroos is taken and released in South America, what is this an example of?
Invasive Species/Gene Flow
Do all genetic mutations possitively effect an organisms adaptation to its environment?
No
Flowers and seeds enclosed by fruits are
Key characteristics of Angiosperms
What is the female reproductive organ in an angiosperm called
Pistil
A variation in the relative frequency of different genotypes in a small population due to the change of genes disappearing as individuals die or do not reproduce.
Genetic Drift
How does Genetic Drift affect a population
It increases a species fitness and increases their Bio Diversity
Why do organisms need to adapt?
So they can survive in order to produce future generations
Why do Angisperms have flowers
To attract pollinators
What is the male reproductive organ in an angiosperm called
Anther
Movement of individuals and the genetic material they carry, from one population to another.
Gene Flow
In order for a species to evolve, it requires an organism to
SUperior fitness and pass on its genes
What determines whether an organism is well adapted?
genes and enviornment
Why are Angiposperms' seeds enclosed by fruits
Transportation, in order to spread out the population of the species and limit competition amongst themselves.
What is the most common type of root system in monocots
Fibrous Roots
Change in the structure of a gene, resulting in a variant form that may be passed on to future generations caused by altering the base units of DNA.
Mutation
The process where better-adapted organisms tend to survive and produce more offspring, making those better suited and adapted genes are made more prevalent
Natural Selection
The white fur of a polar bear is an example of what type of adaptation
Structural
What does the number of cotyledons in an Angiosperms' seed control
Monocot or Dicot
How many petals do dicots typically have
4 or 5. Multiples of 4 or 5
The occurrence of large or small beak sizes among the absence of medium-sized beaks, is an example of what type of selection?
Disruptive Selection
English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
Charles Darwin
Similarities in characteristics that result from common ancestry
Homogeny
What features do monocots typically have
seeds with a single cotyledon, parallel-veined leaves, scattered vascular bundles in the stem,
What type of root system better anchors a plant in a flood plane
Fibrous Roots