Chapter 32 -1 Flashcards
Herbivores, carnivores, omnivores, detritivores consume what?
plants
animals
both
decomposing animals
What are all animals cells like?
all animals are multicelluar eukaryotes
flexible cell membranes
lack cell walls
How do animals move fast?
by muscles and the nervous system
Most animals are ?
invertebrates
Which types of animals dominate habitats?
anthropods
mollusks
chordates
What allows for genetic variation and adaption to environmental conditions of animals?
sexual reproduction -production of sperm & eggs
How to animal embryos develop?
Zygote (single cell)
Morula by mitosis
Blastula (hollow ball)
Gastrula (inward fold as the blastopore forms the tissue layers)
What are the layers in the animal invertebrate?
Ectoderm
Mesoderm
Endoderm
What is the ectoderm?
outside tissue layer - epidermis
What is the mesoderm?
middle layer - support tissues
What is the endoderm?
gastrodermis - intestine
What is the body symmetry of invertebrates?
radial & bilateral
What are the body planes of invertebrates?
transverse
frontal
sagittal