Adaptation & Inheritance Flashcards
What is the term for different
organisms trying to get the same
resource
Competition
What do we call the features which
allow organisms to survive the best
Adaptation
Give an adaptation of small desert animals
Hiding in burrows to avoid the heat of the day
Give an adaptation of large desert animals
Being able to survive long periods without drinking
Give 4 adaptations of desert plants
A waxy layer preventing water from escaping
Stems that store water
Widespread roots to collect water from a large area
Spines instead of leaves to reduce water loss and prevent them from being eaten
Give an adaptation of deciduous trees
They lose their leaves in the winter
Give 3 adaptations for animals surviving in winter
Hibernation
Migration
Thicker fur
What benefit does the snowshoe hare get from its fur turning white in
winter
Camouflaging in the snow
What do we call differences between organisms
Variation
What do we call variation due to things which can happen to an organism
Environmental Variation
What is discontinuous variation
Variation with specific values
Give an example of discontinuous variation
Blood group
Eye color
What is continuous variation
Variation over a range
Give examples of continuous variation
Height
Body mass
Hair length
Arm span
How would you plot discontinuous data
On a bar chart
How would you plot continuous data
On a histogram
Where is DNA found in cells
The nucleus
What do we call the sections of DNA in a nucleus
Chromosomes
What do you call a section of a chromosome
A gene
How many chromosomes do humans have
46
What are chromosomes always found in, in the body
In pairs
Name the 4 scientists who worked
together to discover the structure of
DNA
Rosalind Franklin
Maurice Wilkins
James Watson
Francis Crick
What did Rosalind Franklin and
Maurice Wilkins use to investigate the structure of DNA
X-Rays
What is the shape of a DNA
A double helix
What process leads to evolution
Natural Selection
Give 4 causes of extinction
Changes to the environment
Habitat destruction
Disease
New predators or competitors
What is the name for the range of living organisms in an area
Biodiversity
What is a gene bank
A store of genetic samples from different species
Name 4 different types of gene banks
Seed bank
Tissue bank
Cryobanks
Pollen banks
