New Terms Flashcards
Asymmetrical
Animals with no symmetry
Autotrophic
Organisms that create their own food
Bilateral symmetry
Organisms that can be divided through the middle to create mirror images
Cleavage
When a single cell is converted to a multicellular zygote
Ectoderm
Outer germ layer
Ectothermic
Unable to control body temperature
Endoderm
Inner germ layer
Endothermic
Able to regulate body temperature
Gastrulation
When cells form germ layers
Germ layers
Give rise to body systems and organs, and determine how the body cavity takes shape
Hermaphroditic
Having both male and female reproductive organs
Heterotrophic
Organisms that consume other organisms for food
Invertebrates
Animals that don’t have backbones
Mesoderm
Germ layer between the endoderm and ectoderm
Oviparous
Eggs are hatched after they’ve been laid by the parent
Ovoviviparous
Eggs are hatched inside the parent
Radial symmetry
Organism can be divided in many different ways to form mirror images
Vertebrates
Animals that have backbones
Viviparous
Young develop inside the mother
