Unit 10 Flashcards
Spawning
The process by which eggs are laid in the water and then fertilized with sperm
Cartilage
A connective tissue that is firm but flexible
Pineal eye
An animal eye that detects the presence or absence of light but does not produce an image
Cloaca
A body cavity that is used in animals for the digestive system, the excretory system, and the reproductive system (in females)
Ovoviviparous
Producing young by means of egg that are hatched inside one of the parents
Oviparous
Producing young by laying eggs that hatch later
Viviparous
Producing live young that receive nutrients and oxygen directly from the mother
Gonad
The organ that makes gametes, I.e. ovaries in females and testes in males
Tetrapod
An animal that has four limbs (arms, legs, flippers, or wings)
Extinct
No living examples of the organism are known to exist
Extant
Living examples of the organism are known to exist
Living fossil
An organism that is a living example of an otherwise extinct group and has remained virtually unchanged in structure and function
Spermatophore
A mass of sperm encased inside a gelatinous coating, which dissolves inside a female, where fertilization occurs
Aposematic coloration
A defense mechanism that involves the use of bright colors to warn predators of danger due to toxicity or a bad taste
Mimicry
A superficial resemblance between two animals that are not closely related
