Invertebrates
Jellyfish and sea anemones feed by
stinging cells (cnidocytes) on tentacles
Shark skeletons are composed of
cartilage
Three methods by which amphibians achieve respiration are
gills or lungs and across skin
What two benefits are provided to birds by feathers?
flight, communicates age and gender
Three attributes found only in mammals are
mammary glands/milk, hair, heterodont dentition
Anti predator adaptations in octopus and squid are
chromatophores and release of ink
Head regions of sharks and rays that detect electric fields are
Ampullae of Lorenzini
Coloration of poison dart frogs to warn predators that the organism is poisonous is called
aposomatic warning coloration
What attribute reduces the weight of bird bones?
they are hollow
The development of placental reproduction allowed
colonization of colder climates
Two major characteristics of arthropods are
hard exoskeleton and jointed appendages
What does the operculum of bony fish provide?
Allows fish to breathe without swimming
Which life stages of amphibians require moisture in their habitat?
all life stages
The ability of having half of brain sleep while half remains awake is called
unihemispheric sleep
Herbivore dentition is characterized by
diastema and flat cheekteeth
What do dragonflies eat?
other insects
Bony fish reproduce by
external fertilization
The development in scaled reptiles that allowed colonization of terrestrial habitats is
amniotic egg
Birds choose partners using courtship rituals to
identify species and partner quality
The ability of dolphins to emit pulses of sound that bounce off the objects when hunting is called
echolocation
The waster vascular system of sea stars is used for
movement, respiration O2/CO2, and feeding
Two physical characteristics of coral reef fish are
laterally compressed and bright coloration
Snakes can swallow much larger prey because
jaw can unhinge
Characteristics that allow owls to be effective nocturnal predators are
forward facing eyes, facial discs, asymmetric ear holes, silent flight
Mammal social groups composed of related females are called
matriarchies