Variation And Classisfication Flashcards
(25 cards)
Name 5 types of scientific measurements
Arm length Height Eye colour Hair colour Hand span
Name 5 variables
Different colour eyes Different colour hair Different shoe sizes Different eye sight (glasses or not) Different length of hair
Do taller people have wider handspans?
Yes they do
Do people with blonde hair usually have blue eyes?
Yes
Do people with brown eyes have a longer arm length?
No
What does correlation mean?
There is a link between two variables also known as two things
What two things are variation caused by?
Our genes
The environment
Which are inherited?
Scottish accent, natural hair colour, eye colour, weight, blood group, curly hair, height, suntan, scar
Natural hair colour, eye colour, blood group
Which are environmental variation?
Scottish accent, natural hair colour, eye colour, weight, blood group, curly hair, height, suntan, scar
Scottish accent
Weight
Suntan
Scar
Which are both environmental and inherited variation?
Scottish accent, natural hair colour, eye colour, weight, blood group, curly hair, height, suntan, scar
Curly hair
Height
Explain the animal kingdom
Can't make their own food Eat plants and animals Body doesn't contain cellulose Not green; don't have chlorophyll Move about
What are the five groups in the vertebrates
Mammals Amphibians Fish Birds Reptiles
Explain fish
Have wet scales and fins
Lay eggs in water
Live in water all the time
Breathe using gills
Explain amphibians
Have smooth damp skin
Lay their eggs in a jelly substance
Breed in water
Explain birds
Animals with feathers and wings
Most can fly
Lay eggs with hard shells
Explain mammals
Makes milk and has fur or hair
Birth to live young
Explain reptiles
Dry scales and no fins
Lay eggs with soft shells
What are the seven groups in the invertebrates?
Annelids Molluscs Echinoderms Crustaceans Insects Arachnids Myriapods
Explain an annelid
Example of one
Long body divided into segments, bristles called Chaetae
Earthworm, leech
Explain a molluscs
Example of one
Soft body with a shell, live in water and on land
Squid, octopus, snails oysters
Explain an Echinoderm
Example of one
Star shaped body, tough, spiny skin, live in water
Star fish, sea urchin
Explain a crustacean
Example of one
Segmented body, hard outer Skeleton, 2 pairs of antennae, jointed legs, live in water or damp places
Crab, lobster, shrimp, barnacles, wood lice
Explain insects
Example of one
Body divided into 3 sections: head, thorax and abdomen, 3 pairs of jointed legs, antennae, body covered by a hard case like outer skeleton
Cricket, wasp, moth, beetle
Explain an arachnid
Example of one
Body divided into 2 sections, 4 pairs if jointed legs, antennae, body covered by a hard outer skeleton.
Spiders, scorpion, ticks, mites
