Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
herbivore |
animals that feed mainly on plants |
|
|
carnivores |
animals that feed mainly on animals |
|
|
omnivores |
animals the feed on plants and animals |
|
|
autotrophs |
autotrophs make their own food. plants through photosynthesis |
|
|
heterotrophs |
heterotrophs take in food from the environment. eg animals, fungi |
|
|
parasites |
parasites are heterotrophs that take in their food from a live source |
|
|
saprophytes |
saprophytes are heterotrophs that take in food from a dead source |
|
|
the digestive system (alimentary canal) |
the digestive system is a long tube starting at the mouth and ending at the anus. |
|
|
ingestion |
taking food into digestive system |
|
|
digestion |
breakdown of food - physical: chew food or churn in stomach - chemical: using enzymes |
|
|
absorption |
when digested food passes from digestive system into the blood |
|
|
egestion |
removal of unabsorbed waste |
|
|
types of teeth |
incisors, canines, premolars, molars |
|
|
digestion in the mouth |
mechanical: chewing and grinding of teeth chemical: amylase in saliva |
|
|
peristalsis |
a wave of muscular action in the walls of the alimentary canal that moves the contents along. |
|
|
role of fibre |
fibre stimulates peristalsis as it absorbs and stores water so it expands and its physical increase pushes the intestine to work. |
