Essays Tagged: "invertebrates"
Evolution of Immunity in Invertebrates
Pretty Thorough Summery of the Article -'Article Summery'Name: 'Immunity and the Invertebrates'Periodical: Scientific American Nov, 1996Author: Gregory Beck and Gail S. HabichtPages ... ell refusing grafts from other sponges. This process of refusing is not the same in vertebrates and invertebrates though. Because vertebrates have acquired immunologic memory they are able to reject t ... gh. Because vertebrates have acquired immunologic memory they are able to reject things faster than invertebrates who must constantly 're-learn' what is and is not self. Complement and lymphocytes are ...
Subjects: Science Essays > Biology
The Classification and Evolution of Sponges and Starfish.
hinodermata and Mycale sponge a member of Phylum Porifera. Both are members of Kingdom Animalia and invertebrates. The relative ages of each are Pre-Cambrian and early Cambrian to Ordovician respectiv ...
Subjects: Science Essays > Biology
Everything you need to know about worms and perhaps some you didn't.
lindworm, a limbless, snakelike lizard. However, the name is properly applied only to certain adult invertebrates.Worms play a major role in virtually all ecosystems. Some terrestrial worms condition ... depending on the classification scheme used.Flatworms are primitive, usually broad and flat-bodied invertebrates. They are placed in the phylum Platyhelminthes, which most authorities divide into thr ...
Subjects: Science Essays > Biology
Green Tree Frog.
yes are often golden-brown (Conant 1975).^ Natural History^ Food HabitsEats insects and other small invertebrates. Sometimes found on houses around windows or outside lights, where it pursues the inse ...
Subjects: Science Essays > Environmental Science
Are The Brachiopods And The Bryozoa Two Of The Most Abundant Species From The Ordovician Period?
must be accomplished. This period experienced the origin and rapid evolutions of many new types of invertebrates (Kazlev, 2002)Two of the major invertebrates in the Ordovician period are the Brachiop ... d website with lots of information.Kazlev, M. June 7, 2002. The Brachiopoda. http://www.palaeos.com/Invertebrates/Brachiopods/brachiopoda.htm. Targeted audience would seem to be adults. Very good webs ...
Subjects: Science Essays > Biology
Discuss the roles of development, learning and evolution in the construction of the nervous system.
ly simply by looking at the differences that occur in nature, from the relatively simple systems in invertebrates through to what is perhaps the pinnacle of complexity in the primates. Natural selecti ... h more richly interconnected brain and thus the complexity observed in those of higher vertebrates. Invertebrates have never evolved such a compound due to the absence of cells functionally analogous ...
Subjects: Science Essays > Biology > Human Biology
Full classification of the Giant Squid (Architeuthis dux)
Genus Architeuthidae are the largest known cephalopods, the largest known mollusks and the largest invertebrates ever known to exist in the ocean.Habitat: A giant squid lives between 200 and 1000 met ... her family. The giant squid are unique because, they are the largest known mollusks and the largest invertebrates ever known to exist in the ocean. This squid has one of the largest beaks known of any ...
Subjects: Science Essays > Biology
Spiders.
dom and are classified in the phylum Arthropoda.: There are more arthropods than any other group of invertebrates. And, considering that 95 percent of all animals are invertebrates, that makes arthrop ...
Subjects: Science Essays > Zoology
Compare responses of named Australian ectothermic and endothermic organisms to changes in the ambient temperature and explain how these responses assist in temperature regulation
and fall with ambient temperature changes. Most organisms are ectotherms. Examples are plants, all invertebrates, fish, amphibians and reptiles- ENDOTHERMS are organisms whose metabolism generates en ...
Subjects: Science Essays > Biology
A Short report of Spiders
Crawling around on eight legs, are some of the most fascinating invertebrates on earth, spiders. There are approximately 40000 known species of spiders. Of the 4000 ...
Subjects: Science Essays > Biology
Digestive System Evolution
Digestive System Evolution The digestive systems of mammals and other invertebrates are all similar, and yet in their own way quite different. Most invertebrates have ada ...
Subjects: Science Essays > Biology
Environmental protection
. Ecologists recognize a far greater threat to the much larger number of species of reptiles, fish, invertebrates, and plants that are being wiped out by human activity. In the past few decades, vast ...
Subjects: Science Essays > Environmental Science
Rainforest
opical rainforests hold 70% of the world?s vascular plants, 30% of all bird species, and 90% of all invertebrates.The major loss of rainforests also affects humans. Farming depends on finding and harb ...
Subjects: Science Essays > Environmental Science
What is Cloning and how does it work
nimal KingdomPlants are not the only things that can be cloned. The unfertilized eggs of some small invertebrates like worms, lizards and frogs can develop into full grown adults under certain environ ...
Subjects: Science Essays > Biology
Stigma
carpel, where deposited pollen germinates (botany), a pigmented eyespot in some protozoan and other invertebrates or the spiracle of an insect (zoology), or Christianity marks resembling the wounds of ...
Subjects: Social Science Essays > Sociology