Biodiversity of Animals by Mia Brown https://padlet.com/mbrown45/kxpu2sgc6an7 Definitions en-us 2017-03-02 08:44:21 UTC 2017-03-04 06:39:06 UTC hello@padlet.com Phylum mbrown45 https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157258788 One of the major groups of similar organisms. Each kingdom is divided in phyla, which are divided into classes.]]> 2017-03-02 09:19:30 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157258788 Cephalisation mbrown45 https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157430414 Tending to have a distinct head. E.g. Humans have distinct head (well cephalised) whereas worms do not.]]> 2017-03-02 18:19:17 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157430414 Radial Symmetry mbrown45 https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157431694 Body parts are arranged around a central axis. They can be divided into mirror images by an imaginary line through vertical planes.]]> 2017-03-02 18:22:38 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157431694 Ectoderm mbrown45 https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157434427 The outer embryonic layer. It forms the skin and hair and makes the neutral tube that becomes the central nervous system in Chordates.]]> 2017-03-02 18:29:43 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157434427 Endoderm mbrown45 https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157435245 Forms the wall of the digestive system. Is a primary germ layer.]]> 2017-03-02 18:32:03 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157435245 Diploblastic ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157469511 Having a body derived from only two embryonic cell layers (ectoderm and endoderm, but no mesoderm)
E.g. sponges and coelomates.

]]> 2017-03-02 20:06:22 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157469511 Triploblastic ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157469748 Having a body derived from three embryonic cell layers (ectoderm, mesoderm, and endoderm)
E.g. all multicellular animals except sponges and coelomates

]]> 2017-03-02 20:07:05 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157469748 Mesenchyme ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157470114 A loosely organized, mainly mesodermal unspecialised embryonic tissue.

]]> 2017-03-02 20:08:09 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157470114 Phylogeny ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157470787 The study of how organisms evolved.]]> 2017-03-02 20:10:22 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157470787 Coelom ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157471045 A body cavity.
Acoelomate - animals have no body cavity between endoderm and ectoderm.
Coelomate - animals do have a body cavity.]]> 2017-03-02 20:11:11 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157471045 Sessile ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157472049 Fixed to one spot. Doesn't move/]]> 2017-03-02 20:14:52 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157472049 Mesogloea ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157473144 A gelatinous layer between the external and internal layers of the body wall]]> 2017-03-02 20:18:42 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157473144 Nematocyst ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157473324 A specialized cell in the tentacles of a jellyfish or other coelenterate, containing a barbed or venomous coiled thread that can be projected in self-defense or to capture prey.

]]> 2017-03-02 20:19:25 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157473324 Cnidocyte ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157473581 A stinging cell containing one giant secretory organelle (or cnida)  that defines the phylum Cnidaria (corals, sea anemones, hydrae, jellyfish, etc.)]]> 2017-03-02 20:20:18 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157473581 Hydroid ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157475012 A coelomate of an order that includes the hydras (minute freshwater coelomates with a stalklike tubular body and a ring of tentacles around the mouth). They are distinguished by the dominance of the polyp phase.

Most hydrozoan species include both a polypoid and a medusoid stage in their lifecycles, although a number of them have only one or the other. E.g. Hydra has no medusoid stage.
]]> 2017-03-02 20:25:16 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157475012 Medusae ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157475796 A free-swimming sexual form of a coelomate such as a jellyfish, typically having an umbrella-shaped body with stinging tentacles around the edge.]]> 2017-03-02 20:27:57 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157475796 Gonad ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157476422 An organ that produces gametes; a testis or ovary.]]> 2017-03-02 20:30:01 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157476422 Polyp ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157476654 A solitary or colonial sedentary form of a coelomate (e.g. sea anemone) typically having a columnar body with the mouth uppermost surrounded by a ring of tentacles.]]> 2017-03-02 20:30:51 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157476654 Dorsoventral ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477112 extending along or denoting an axis joining the dorsal and ventral surfaces (from top to bottom)]]> 2017-03-02 20:32:51 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477112 Fluke ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477388 A group of parasitic flatworms that probably evolved from free-living forms millions of years ago]]> 2017-03-02 20:33:50 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477388 Planarian ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477510 A free-living flatworm that is non-parasitic.

]]> 2017-03-02 20:34:22 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477510 Fluke ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477594 A group of parasitic flatworms that probably evolved from free-living forms millions of years ago]]> 2017-03-02 20:34:45 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477594 Polychaete ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477917 A paraphyletic class of annelid worms, generally marine. Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin]]> 2017-03-02 20:36:00 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157477917 Haemocoel ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157478169 The primary body cavity of most invertebrates, containing circulatory fluid (blood).

]]> 2017-03-02 20:36:58 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157478169 Metamorphosis ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157478418  The biological process by which an animal physically develops after birth or hatching, involving an abrupt change in the animal's body structure through cell growth and differentiation.]]> 2017-03-02 20:38:00 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157478418 Notochord ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157478725 A cartilaginous, skeletal, rod-like bodily support structure (found in all embryonic and some adult chordate animals). It is usually replaced by a vertebral column.]]> 2017-03-02 20:39:16 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157478725 Phylogenetic Tree ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157479639 A branching diagram showing the inferred evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.]]> 2017-03-02 20:43:26 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157479639 Clade ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157479838 A group of organisms believed to have evolved from a common ancestor, according to the principles of cladistics.

]]> 2017-03-02 20:44:18 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157479838 Taxon ChelseaBo https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157479935 An animal or plant group that is closely related and forms a unit. It is a taxonomic group of any rank, such as a species, family, or class.]]> 2017-03-02 20:44:46 UTC https://padlet.com/mbrown45/kxpu2sgc6an7/wish/157479935