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;
34 Cards in this Set
- Front
- Back
What is the dorsal? |
the back |
|
What is the anterior? |
the head |
|
What is the posterior? |
the tail |
|
What is the ventral? |
the stomach |
|
What is an animal? |
a living organism that feed on organic matter, typically having specialized sense organs and and nervous system |
|
What percentage of animals and vertebrates and invertebrates? |
invert: 95% vert: 5% |
|
Main phyla of inverts? |
spinges, cnidarians, flatworms, roundworms, annelids, mollusks, anthropoids, echinoderms |
|
how do sponges use flagella? |
flagella moves water that contains food particles through the sponges body |
|
what invert group has medusa and polyp body form? |
cnidra |
|
an endoskeleton |
allows the body to move and gives it structure |
|
an exoskeleton |
external structure that allows protection (shells) |
|
how diffusion help inverts? |
exchange oxygen and carbon dioxide w its environment through its skin |
|
an anthropoid means? |
invert phylum that specialized and has bilateral symmetry, complete digestive tract, and contains organism w jointed legs |
|
radial symmetry? |
body can be cut into mirror images from any line through their center |
|
bilateral symmetry? |
can only be image separated one way |
|
whats cephilization? |
the concentration of sense organs, nervous control, etc... at the anterior end of the body |
|
gastrovascular cavity? |
digest and expel through one hole |
|
digestive tract? |
mouth to anus |
|
organisms with digestive tract |
sponges, round worms, mollusks, anthropoids, echinoderms |
|
open circulatory system? |
blood partially contained in blood vessels and heart pumps into spongey cavities |
|
closed circulatory system? |
heart pumps blood through blood vessels |
|
whats a hermaphodite? |
any organism that can produce both male and female gametes |
|
whats a chordate? |
animals possessing a notochord, a hallow dorsal nerve chord, an endostyle and a post anal tall for a period of their live cycles |
|
lungs? |
oxygen formed thought air is taken in and passed into blood |
|
gills? |
oxygen extracted through water |
|
ectotherm |
organism that relies on its environment for its temperature control |
|
endotherm |
organism that internally controls its body temp |
|
vertebrates with 4 chambered hearts? |
mammals and reptiles |
|
why is a 4 chambered heart beneficial ? |
vecuase of complete separation between oxygenated and deoxygenated heart. Allows longer endurance to feed oxygen demand tissues |
|
reptiles eggs |
amniotic eggs laid on land or some snakes keep them in their bodies till they hatch |
|
amphibians |
soft gel surrounding there eggs that are laid in water or damp places. tad poles when they hatch and grow to be amphibians
|
|
how do reptiles produce ? |
they lay eggs, a male is not needed to lay eggs |
|
what adaptations d birds have for flight? |
hollow bones that help them fly faster and their lighter |
|
whats a mammary gland |
the milk producing gland of any female mammal |