Variation And Adaption Flashcards
(18 cards)
Environmental types of variation
Accent
Genetic types of variation
Blood group
Eye colour
What’s continuous variation
Shows a gradual change in a charictaristic so this means there are no clear catagorys
Continuous variation data should be shows using what type of graph
Histogram
What are histograms
No gaps between the lines
What’s a bat chart
Diffrent bars which are seprate
What is discontinuous variation
When Individuals can be clearly devided into 2 or more groups and there are no intermediate states
Examples of continuous variation
Body mass
Freckles
Nose shape
Types of discontinuous variation
Blood group
Accent
What’s an adaptation in animals
Something about their body which helps them to servive in their habitat
What’s nateral selection
When individuals produce they pass on their good characteristics to their offspring and gradually over many years nearly all organisms become better adapted
What’s evolution
Over thousands of years nateral selection is known as evolution
What’s an antibiotic
A chemical that kills bacteria
Why won’t antibiotics kill a cold or a flu
Cuz There viruses
What’s a fossil
Preserved remains or parts of animals and plants from the past
Why do animals become extinct
-Their environment changes quickly and they can’t adapt quick enough
- diseases
- loss of habitat
-hunted by humans
What’s endangered mean
Numbers are low and in danger of becoming extinct
What’s a species
Type of organism
