Unit 9 Flashcards
Ectothermic organism
An organism that cannot control its internal body temperature
Hermaphroditic
A situation in which a single individual can produce both male and female gametes
Metamorphosis
A development stage where an immature organism goes through extensive changes in body plan to enter an adult stage
Bilateral symmetry
Capable of being divided into two halves that are mirror images of each other
Radial symmetry
Symmetry that arises from a central axis
Open circulatory system
A system in which blood is not confined to blood vessels but is pumped into the body cavity to have direct contact with the organs
External fertilization
Fertilization that occurs outside the parents’ bodies
Internal fertilization
Fertilization that occurs inside one of the parents’ bodies
Closed circulatory system
A system in which blood is confined to blood vessels
Molting
The shedding and replacing of an old outer covering
Compound eye
An eye that is made up of small viewing units, each of which produces an image
Simple eye
An eye that is made up of one eye and produces one image
Pollinator
An animal that carries pollen from one plant to another to aid in fertilization
