Vocab and Animal Phyla Flashcards
quiz (39 cards)
Heterotroph
An organism that cannot make its own food, gets energy from others
Zygote
Fertilized egg cell that comes from sperm and egg
Blastula
A ball filled of fluid, made of a zygote going through mitosis and dividing
Gastrula
A blastula that continued to divide, until it becomes a bi-layer sack with an opening at one end
endoderm
inside skin and lining of digestive system
ectoderm
Tissue that develops into nervous tissue and outer skin
Asexual reproduction
reproduction done without fertilization resulting in an exact copy; A clone
Asymmetric
not symmetrical
radial symmetry
symmetry in a circle
Bilateral symmetry
cut in half, two symmetrical planes
Sessile
Animals that are stationary as adults, but can move at some stage of their life
Hydrostatic skeleton
structure is filled with fluid, such as an earthworm.
exoskeleton
Having a structure outside the body of an animal, like a snail having a shell
Endoskeleton
Bone structures inside the body, such as the human skeleton
Epidermis
the outermost layer on your body
Cephalization
an animal that has a head
Parasite
an organism that lives on another species, and benefits from that animal
Coelon
A fluid filled body cavity of an animal that contains the internal organs
Protostome
develop mouths from the first opening in the gastrula
Deuterostome
develop anuses from the first opening in the gastrula
Cilia
A short microscopic hair-like structure found in large numbers found on certain cells
Invertebrate
an animal without a backbone
Adaptation
changing to best fit the environment to survive
Terrestrial
the ground, earth floor
