Plant phyla
Has no roots, no vascular system, and reproduce through spores.
What are bryophytes?
No symmetry, segmentation, or mouth/anus. They're porous filter feeders attached to rocks.
What are porifera?
The first level of classification.
What is domain?
When the most fit characteristics of a population survive.
What is natural selection?
Bones that have the same structure.
What is vestigial?
These have roots and a vascular system but reproduce through spores.
What is filicinophyta?
Have radial symmetry, no segmentation, a mouth with no anus, stinging cells, and tentacles.
What are cnideria?
Second level of classification.
What is kingdom?
When organisms select their mate.
What is nonrandom mating?
Organisms structures that have the same function.
What are homologous?
The kingdom these are under.
What is plantae?
Bilateral symmetry, no segmentation, mouth no anus, flattened body.
What are platylhelmintha?
Third level of classification.
What is phylum?
When a gene or cell changes, causing a change in the DNA.
What is a mutation?
Structures that aren't needed.
What are vestigial structures?
These have roots, they can have woody stems, as well as a vascular system and they reproduce from seeds.
What are angiospermophytes?
Bilateral symmetry, very segmented, mouth and anus, bristles often present.
What are annelida?
Fourth level of classification.
What is class?
Change in allele frequency due to chance. Can occur what part of the population lives in isolation, as seen with the Amish.
What is genetic drift?
Provides evidence for evolution.
What is the fossil record?
These have roots present, with a thick woody stem, and vascular tissue. They also reproduce through seeds.
What are coniferophytes?
Bilateral symmetry, segmented, mouth and anus, exoskeleton, jointed appendages.
What are arthropoda?
An acronym for the levels of classification.
What is Dumb Kids Play Chicken On Freeway Get Smashed.
Gene changes caused by migration of populations.
What is gene flow?
When organisms rapidly diversify from an ancestral species into a multitude of new forms due to changes or differences in the environment.
What is adaptive radiation?