Diversity Within Species Flashcards
What is a species?
A group of organisms that all have the same basic structure.
What is genetic diversity?
The variations between members of a population.
What causes variations in a population?
Subtle variations in the cells of the organisms.
Can some variations in individuals be invisible?
Example
Yes, for example, blood types in humans.
How have humans reduced variation in organisms?
By breeding plants and animals to show the same useful characteristics.
What are some characteristics of wheat plants bred by humans?
- Strong stalks
- Many large seeds
True or False: All variations in a population are visible.
False
How is the biodiversity of an ecosystem measured?
By the number of populations of different species (ie. community) that are present.
More diversity in a community means what?
Higher biodiversity for the ecosystem in question.
Within populations of organisms, there are ___ ____ between individual members
Example
Subtle variations (ie. height, hair colour, eye colour).
The more variations found, what happens. What is it referred to as?
The higher the population’s biodiversity is. This is referred to, by scientists, as genetic diversity.
