Topic 1 Flashcards
Why do we classify living organisms on earth?
To keep data organised
Group organisms of similar characteristics
Know exactly what things are
Injury treatment
3 facts about Viruses
Exist as virons outside a host cell
Dormant - do not reproduce
Only in host cell they show characteristics
Animalia - 4 things about this kingdom
Multi-cellular
No cell walls
Feed heterotrophically
No chlorophyll
Plantae
Multi-cellular
Have cell walls
Feed autotrophically
Protocista
Unicellular
Have a nucleus
Fungi
Multi cellular
Have cell walls
No chlorophyll
Feed saprophytically
Multi cellular definition
More than one cell
Heterotrophically definition
Eat other organisms - digest tissues inside
Autotrophically definition
Make food from small molecules using energy source
Saprophytically definition
Like heterotrophically but digest on the outside instead
What are vertebrates
Animals that have a backbone and internal skeleton
How do we split the vertebrates
Method used to absorb oxygen
Way it reproduces
Way it keeps itself warm
Internal and external fertilisation definition
Internal - sperm inside the female
External- female releases the egg into the water, fertilised by sperm
Oviparous definition
Vertebrates lay eggs
Viviparous definition
Give birth to live young
Homeotherm
Keep the body temperature more constant
Poikiliotherm definition
Body tenperature varies within their surroundings
