Nutrition - Animals Flashcards
What are the advantages of eating other animals?
- More return for the effort (proteins already packaged)
2. Easier to digest
What are the disadvantages of eating other animals?
- Hard to find
- Prey is well protected
- They fight back
What does Depredate mean?
past tense for dead
Explain the difference between a parasitoid, parasite and scavengers.
Parasitoid: eat animal from the inside
Parasite: eat animal from the outside
Scavengers: eat dead animals
Three things carnavoires have to do before they get a meal.
- locate
- capture
- immobile
Hawks daytime eyesight enhanced vision adaptations. (6)
- Large eyes to collect more light
- Large number of cones (visual accuracy)
- Magnified vision
- Sharp vision
- Frontal placement of eyes for depth perception
- Fovea -> Retinal pits with millions of sensory cells
What are fovea?
Retinal pits with millions of sensory cells.
Centrally placed fovea are ______
Temporal placed fovea are ____
central = search fovea temporal = pursuit fovea
Owls nighttime enhanced vision adaptations. (4)
- Huge eyes to gather light
- Lots of rods with glycogen (less precise but light sensitive vision)
- Frontal placement
- 270 degree head rotation
Frogs and tiger beetles have ____ _____ ____ for hunting.
Large compound eyes.
Compound eyes do what?
Create one cohesive image of the environment.
Dragonflies and damselflies are part of what animal grrouping?
odonates
Dragonflies and damselflies have what visual adaptation?
compound eyes with individual ommatidium (sensory component) with almost 28,000 per eye
Name the two visual hunting spiders
Jumping spiders and Goldenrod crab spiders
What cool thing can jumping spiders do with their retina?
change the placement of their retina with muscles to change their field of view.
