Padlet Project by Gabrielle Fadly https://padlet.com/gmfadly18/1vkc53plwfdy Marine Biology Phylum Project en-us 2018-03-27 15:29:16 UTC 2025-11-21 02:58:03 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Playcontrol.png Porifiera gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/246550850 Characteristics: Multicellular organisms  that are engraved in nature. There bodies are cylindrical, or asymmetrical. They have no nervous system, and they can reproduce sexually or asexually. The are all filter feeders, and they often have a skeleton of spicules. They all are sessile meaning that they are living attached to something. "Pore bearing"
Major Groups:  Calcareous Sponge, Hexactinellid, Demosponge, Homoscleromorpha. 
How they are all different: 
Important Anatomical Characteristics: The body wall is diploblastic which means it consists of an outer layer called pinacoderm and an inner layer called choanoderm. They have an exoskelton which is made up of either sopngin fibers or calcareous/siliceous spicules.  There body is either cylinderical, asymmeterical, or has radical symmetry. 
Important life cycles within groups: Since the porifera is a sopnge and they are hermaphroditic, they can function as either a male or female for reproduction. They can produce eggs and sperms at different points of time, and the adult sponge has two different choices on how offspring can be produced, which is either sexually or asexually. 
Additional Info: 
- Sessile organisms
–Live on the sea floor.
•Have porous bodies
–Do not have specialized tissues.
Characterized by special cells called coanocytes. 
•Cnidarians are carnivorous and use tenticles to push food into their gastrovascular cavity.
–Nematocysts are stinging cells that project needle shaped stingers into prey that inject poison killing or inhibiting them.

https://www.youtube.com/watch?v=33rMjlciRGU 
]]> 2018-03-27 15:30:19 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/246550850 Cnideria gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/246561330 Characteristics: The Cnideria (corals) ecosystem has a definite amount of species that interact with each other, by giving a structure into the ecosystems. The corals build reefs and create a community of organisms. Most reef building corals have photosynthetic algae called zooxanthella that live among their tissues. The corals and algae have a mutualistic relationship. The coral also provides the algae with a protected environments.  Corals eat by catching tiny floating animals called zooplankton. During the night, coral polyps come out of their skeletons to feed, they stretch their long stinging tentacles out to capture and eat critters floating around. 
Major Groups within Class:  Anthozoa, Cubozoa, Hydrozoa, Scyphozoa
Distinction of how groups are different: 
Important Anatomical Characteristics: The body types are polyp and medusa body shapes. Corals like sea anemones belong in groups of animals like cnidarians, and they have a simple body consisting of a central gut cavity surrounded tentacles.
Important life cycles within groups:  Corals can reproduce either asexually or sexually. During the asexual reproduction new clonal polyps budd off from parent polypds to develop or start new colonies. This happens when the parent polyp reaches a certain size and divides. Many corals live in different places, like the Pacific Ocean, Indian Ocean, Caribbean Sea, red sea, Arabian Gulf, and in places next to Florida where its warm.  Corals live in temperatures between 73 degrees to 84 degrees but some can handle up to 64 degrees for the coldest and 104 degrees for the highest. It usually lives in the bottom of the ocean, because they stick on the rocks. 
https://www.shapeoflife.org/video/cnidarians-life-move
]]> 2018-03-27 15:49:34 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/246561330 Nematodes gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/246563497 Characteristics: Nematodes- They feed on the plants and algae, and other are grazers that feed on bacteria and fungi. They usually eat animals that are small, or phytoplankton like diatoms. 
Major Groups within Class: Enoplea, Chromadorea
Distinction of how groups are different:
Important Anatomical Characteristics: Nematodes- They have bilateral symmetry, they have three tissue layers: endoderm, mesoderm, ectoderm. They have a body cavity called the pseudo coelom.
Important life cycles within groups: Nematodes- they reproduce sexually and asexually. They live in benthos (sediments, whether soil or aquatic sediments).
https://www.youtube.com/watch?v=BniTH0so70I
]]> 2018-03-27 15:53:57 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/246563497 Mollusca gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252617399 Characteristics: The dorsal part of the body wall is a mantel that secrets calcareous spicules, plates and shells. The anus and genitals are the body parts that open into the mantle cavity. There are 2 pairs of the nerve cords that are important. They live in fresh water and sometimes in damp soil. They have an unsegmented head, and a muscular foot.
Major Groups within Class: Polypalcophora, Gastropods, Bivalvia, Cephalopoda.

Distinction of how groups are different: Their are more varied forms of molluscas more than any other phylum.
Important Anatomical Characteristics: They show bilateral symmetry. They have a shell that is secreted by mantle. They have a body cavity that holds all their organ.
Important life cycles within groups: It varies depending on the classification of species. Most of their reproduction is by sperm in which its released in the water, and the other mollusca releases an egg and they both get together and it creates a baby.

https://www.youtube.com/watch?v=S7Di21_ETrQ ]]> 2018-04-17 15:13:17 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252617399 Arthropoda gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252626553 Characteristics: They have a segmented body, an exoskeleton, jointed appendages, bilateral symmetry, and an open circulatory system. Epidermis produces a segmented, jointed and hardened chitinous exoskeleton with musculature between individual joints of appendages
Major Groups within Class: Chelicerta, Trilobite, Cruisacean
Distinction of how groups are different: The main difference between them is poisonous and have one par of legs attached to each segment.
Important Anatomical Characteristics: Exoskeleton, Open Circulatory System hearts vary in structure but do exist , Joined Appendages, Segmented Body. Blood is pumped into empty spaces bathing the tissues in blood.
Important life cycles within groups: Larval and or nymphal stages. Generally the sperm is transferred to the female within a sealed packet known as spermatophores.
http://www.cornell.edu/video/arthropod-predators-natures-defenders 

]]> 2018-04-17 15:29:53 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252626553 Echinodermata gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252634556 Characteristics:  Body without segmentation. Radial symmetry, several arms radiating from the main body. The body consists of five equal segments. Each segment contains a duplicate set of various internal organs. Calcite spicules embedded in the skin, often partly fused. Tube feet (podia). Water vascular system: complex system of water filled canals, extensions of tubed feet.
Major Groups within Class: sea cucumber, starfish, sea urchin, brittle star, crinoid.
Distinction of how groups are different: They are different because they each vary in size and in their body symmetry.
Important Anatomical Characteristics: They are excursively marine. They all have a radial symmetry around a central disk. They all possess a very unique water vascular system. They have an internal skeleton, made of calcareous or bony plates called vesicles 4.
Important life cycles within groups: Reproduction, happens by involving fertilization of eggs by spermatozoa, and some echinodermata reproduces asexually. https://study.com/academy/lesson/echinodermata-circulatory-system.html 

]]> 2018-04-17 15:44:22 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252634556 Chordata gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252639241 Characteristics: A notochord, a dorsal hollow nerve cord, post- anal tail, pharanegal slits.
Major Groups within Class: Reptiles, Amphibians, Tunicates (sea squirts), hagish, and lamprey, mammals, birds, bony fish, jawless fish, cartilaginous fish.
Distinction of how groups are different: Depending on the group one can contain 2 vertebrates and some can contain a invertebrate. It depends on each group.
Important Anatomical Characteristics: Chordates are named for the notochord which is a flexible, rod-shaped structure that is found in the embryonic stage of all chordates and some in the adult stage. The dorsal hollow nerve cord comes from the echinoderm that rolls into a hollow tube during development.
Important life cycles within groups: They produces asexually with an egg and a sperm, in which it takes place in tunicates and in some vertebrates.
https://www.youtube.com/watch?v=yT5iR32Sq90  

]]> 2018-04-17 15:52:59 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252639241 Platyhelminthes gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252645304 Characteristics: Bilateral symmetry, body is dorso-ventrally flattened. Kingdom: Animalia
Major Groups within Class: Turbelilaria (planarians), Trematoda (fulkes) , and Cestoda (tapeworms).
Distinction of how groups are different: The differences in sizes, and shapes bcuase eome are roughly worm shape and others are triploblastic.
Important Anatomical Characteristics: Digestive system is that it has no mouth, no actual stomach structure. Respiration is by diffusion, and its life cycle is involving one or more hosts.
Important life cycles within groups: Reproduces sexually by gametic fusion in hermaphrodite species, and asexually by regeneration and fission. https://www.youtube.com/watch?v=fWVMKLsRE6s ]]> 2018-04-17 16:04:28 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252645304 Analida gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252651705 Characteristics: Symmetry and size, they are all bilaterally symmetrical animals. They have a fluid-filled cavity between the outer body wall and the gut. Body wall is covered by an external cuticle that is never shed or molted. They have unjointed sentimental extensions of the body wall found in polychaetes.
Major Groups within Class: Polychaeta (marine annelids), Oligochaeta (marine, freshwater, and terrestrial annelids including earthworms), Hirudinea (marine, fresh water and terrestrial leeches).
Distinction of how groups are different: Some are class polychaeta and Clade Clitellata.
Important Anatomical Characteristics: Circulation and respiatory structure, sense organs, coelom, body wall, parapodia.
Important life cycles within groups: is sexual or asexual. Asexual reproduction is by fragmentation, budding, or fission. Among sexually reproducing annelids hermaphrodites are common, but most species have separate sexes. https://www.youtube.com/watch?v=9rw5r3PmOMY]]> 2018-04-17 16:15:48 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252651705 Mollusca gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252658318 2018-04-17 16:28:11 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252658318 Poriferia gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252658601 2018-04-17 16:28:40 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252658601 Cnideria gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252658803 2018-04-17 16:29:05 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252658803 Analida gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252658940 2018-04-17 16:29:21 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252658940 Nematoda gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659140 2018-04-17 16:29:43 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659140 Arthropoda gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659256 2018-04-17 16:29:59 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659256 Platyhelminthes gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659446 2018-04-17 16:30:24 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659446 Echnidormata gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659698 2018-04-17 16:30:52 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659698 Chordata gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659921 2018-04-17 16:31:19 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/252659921 Mollusca gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/254676161 2018-04-24 04:16:19 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/254676161 Annelida gmfadly18 https://padlet.com/gmfadly18/1vkc53plwfdy/wish/254676708 2018-04-24 04:21:21 UTC https://padlet.com/gmfadly18/1vkc53plwfdy/wish/254676708