Lesson 1 Flashcards
- categorised into 5 major groups
- Largest and most diverse ‘kingdom’ of life on earth.
The Animal Kingdom
- This is what you call single celled organisms
Unicellular
- An organism consisting of many cells
Multicellular
- They move around in some way; walk, run, swim, climb, dig, etc.
Motile/mobility
- They don’t move around, but even they are motile at some point in their life cycle.
Sessile
- Chemicals that are essential to keep organisms alive
Nutrients
- An example of a direct source of a cell’s energy for breaking down organic molecules
Glucose/sugar
Organisms that must consume organic molecules and break them down for energy
Heterotrophs
- Organisms that extract energy from the sunlight and don’t need organic molecules in their diet.
Autotrophs
- A chemical process in which oxygen is used to make energy from carbohydrates (sugars).
Aerobic respiration
- Producing energy without the use of O2.
- more common in bacteria and some fungi
Anaerobic respiration
Producing energy without the use of O2.
- Unit of energy
Adenosine Triphosphate (ATP)
- twice as efficient as storing extra energy as starch (happens in plants)
- most efficient way to store energy for active animals.
Fats/oils
- exact copies, clones, easier, quicker, doesn’t require a mate.
Asexual reproduction
- unique combination of traits
- produces variation which allows for adaptation and evolution
Sexual reproduction
- the series of changes that the members of a species undergo as they pass from the beginning of a given developmental stage to the same developmental stage in a subsequent generation.
Life cycle
eg. Frog: embryo> larva > adult
eg. Human: embryo > fetus > juvenile > adult
eg. Butterfly: embryo > caterpillar(larva) > pupa > adult
eg. Fly: embryo > maggot(larva) > pupa > adult
eg. Clam: embryo > glochidium (larva) >adult
Examples of complex development
- change in form
Metamorphosis
- has a genetic basis
- plays a major role in how animals interact with their environments and with each other
Behaviour
- behaviours can either be:
Instinctive or Learned
- taxes
- reflexes
- fixed action patterns
- mimicry
- camouflage
Instinctive Behaviour
- taxes
- reflexes
- fixed action patterns
- mimicry
- camouflage
Instinctive Behaviour
- imprinting
- habituation
- conditioning
- courtship
- reproduction
Learned Behaviour