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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