chemoheterotrophy in animals Flashcards
basal animals
sponges and jellies
protostomes
insects
deuterostomes
chordates
what are the type of feeding mechanisms
- filter feeding
- predation
- parasitism
what are the model organism’s for this section
- daphnia: filter feeder
- hydra: predator
- Tareia: parasite
what is the outgroup for animals
choanoflagellates
how do animals perform ingestion
eating food
what is food
material that contains nutrients
- amino acids
- fatty acids
- vitamins
- minerals
what are animals categorized as based on food
detritivores
herbivores
carnivores
omnivores
what are the different types of parasites
endo: living inside host
ecto: living outside of host
what are the strategies of eating
- suspension
- deposit
- fluid
- mass
suspension feeders
filter out particles floating in water or air
example= barnacles
deposit feeders
ingest organic material that has been deposited within a substance or on its surface
example= sea cucumber
fluid feeders
suck or mop up liquids like nectar, blood, plant sap
example= hummingbird
mass feeders
take chunks of food into their mouths
example= lions
how do animals get food into each cell
- incomplete system
- complete system
- chemical digestion
- small intestine structure
- circulatory systems
why is it important that villa increase surface area
to absorb nutrients
open circulatory system
- hemolymph
- blood and fluid is combined
- not very effective
- fluid can be take back up
how is nutrients passed through the body in an open circulatory system
after blood gains nutrients, it’s pumped through open ended blood vessels and continue moving through body
closed circulatory system
- blood
- arteries, veins, capillaries
- blood carry O2
veins
bulk flow
how is nutrients obtained in closed circulatory
blood contains nutrients and moves through the whole body
- fluid between cells gains nutrients by capillaries
where does exchange happen between circulatory and tissues that need nutrients
capillaries
