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Three Types of Environmental Adaptations
Three Types of Environmental Adaptations

... able to live in its environment. Adaptations are body features and behavior habits that help a living thing survive and reproduce in its natural environment. Organisms, from microbes to plants and animals, inhabit environments that can change to become drier, hotter, colder, more acidic, darker and ...
The subphylum Vertebrata houses the most successful
The subphylum Vertebrata houses the most successful

... scavengers. Turbellarians are up to 60 cm long, move via muscular movement and cilia, and are typically bottom dwellers. The main body features are detailed below: The epidermis typically contains rhabdites (making mucus), and adhesive and releaser glands for attachment and release from the substrat ...
What fish is that?
What fish is that?

... • Great diversity in ecology and behaviour • Their relative success shapes future adult populations ...
Rhopilema nomadica - Delivering Alien Invasive Species
Rhopilema nomadica - Delivering Alien Invasive Species

... The bell is up to 90 cm in diameter, commonly 40-60 cm. The body is light blue, bell rounded, with blunt tuberculation of the exumbrella. The mouth arms end in vermicular filaments. BIOLOGY/ECOLOGY Dispersal mechanisms Planktonic larvae (planulae). Rhopilema nomadica Reproduction Photo: Mel Cooper I ...
Study Guide Evolution of Animals Chapters 32-35
Study Guide Evolution of Animals Chapters 32-35

... of head, mouth in the middle, branching gut (digestive system), slow moving bottom dwellers which feed on small animals or dead animals. 69. Parsitic flat worms include flukes and tapeworms. 70. Flukes are parasites living in the liver, intestines, lungs or blood vessels of vertebrates. Oral sucker ...
Phylum Nematoda The Roundworms
Phylum Nematoda The Roundworms

... • Most are marine, but also some aquatic and terrestrial forms as well • Major characteristics: – Soft body protected by dorsal shell (in most) of calcium carbonate – Most are dioecious ...
Mollusks - Norwell Public Schools
Mollusks - Norwell Public Schools

... Ocean dwelling mollusk whose foot is adapted to form tentacles around its mouth octopus, squid, cuttlefish, nautilus External, internal or no shell at all nautiluses have an external shell squids and cuttlefish have a small internal shell octopuses have no shells ...
Internal Anatomy
Internal Anatomy

... then the pharynx. Remember, this area is distensible so choking is rare, but a miscalculation of prey size can kill the predator. The buccal cavity often contains the first set of gills and delineates the mouth from the pharynx. The pharynx contains the majority of the gill arches and depending on t ...
BIOL212AnimalDiversity
BIOL212AnimalDiversity

... Locomotion is by cilia and, in some larger flatworms undulating muscular movements may help. The nervous system includes a small anterior ganglionic “brain” and longitudinal nerve cords. “Eyespots” consist of concentrations of pigment (melanin) that shade photoreceptive neurons. The turbellarian dig ...
Chapter 7 Study Guide
Chapter 7 Study Guide

... Encrusting sponges form thin, sometimes brightly colored growths on rocks or dead coral. 5) General Anatomy (see Figure): a) Numerous tiny pores (ostia) on the surface allow water to enter and circulate through a series of canals where plankton and organic particles are filtered out and eaten. b) Th ...
one-way digestive system
one-way digestive system

... i. All cells of the adult organism can be traced to one of the three germ layers. Some animals have only the inner and outer germ layers but more complex animals have mesoderm as well. (1) Ectoderm - the inner layer gives rise to the outer covering of the animal (skin, hair, nails, feathers, scales) ...
Model Answer (AS-2891)
Model Answer (AS-2891)

... (histo= tissue, lytic= destroying). 50 million people are infected worldwide, mostly in tropical countries in areas of poor sanitation. In industrialized countries most of the infected patients are immigrants, institutionalized people and those who have recently visited developing countries. Inside ...
Vertebrate Beginnings
Vertebrate Beginnings

... http://www.youtube.com/watch?v=JNcfhPG1Svo http://www.youtube.com/watch?v=MsHCqrrU-Gk ...
Unit 11 Invertebrates
Unit 11 Invertebrates

... the head region – better movement/ brain formation ...
MOLLUSKS Read the figure below, which covers topics from your
MOLLUSKS Read the figure below, which covers topics from your

... a. lack a distinct head. c. do not have a hemocoel. b. have an open circulatory system. d. are usually sessile. ____ 4. Bivalves have all of the following structures except a. a radula. b. adductor muscles.c. siphons. d. gills. ____ 5. An octopus generally moves by a. pumping a jet of water through ...
Unit 5: Animals – Sponges, Cnidarians, & Worms
Unit 5: Animals – Sponges, Cnidarians, & Worms

... 3. Cells w/out cell walls, many have specialized functions 4. Usually have a method of movement 5. Most reproduce sexually ...
Aquatic Insects: A Teacher`s Resource Guide
Aquatic Insects: A Teacher`s Resource Guide

... are ferocious predators that prey on anything they can capture, including other aquatic insect larvae and small fish. The net-spinning caddisflies live primarily in fast-flowing sections of streams. They attach themselves to the sides of rocks, where they build a net to catch algae, detritus, and sm ...
Phylum?
Phylum?

... 10. dorsal blood vessel 11. nephridia 12. ventral blood vessel 13. ventral nerve cord 14. intestine 15. anus Polyp of Hydra 1. tentacle 2. gastrovascular cavity 3. mouth 4. ectoderm 5. mesoderm 6. endoderm 7. base Crayfish inside 1. brain 2. green gland 3. mouth 4. esophagus 5. stomach 6. anus 7. in ...
File
File

... Larger, solid waste is regurgitated out of the mouth since there is no anus. The amoeboid-like cells in the mesoglea help remove waste. Respiration of gases (Breathing) Gas exchange is accomplished through diffusion with the surrounding water. This is why it is important for the cilia to continuousl ...
Marine Animals Without a Backbone
Marine Animals Without a Backbone

... Cnidarians are usually one or the other---but sometimes spend time as both. ...
Living by the Water – Boon and Bane for the People of Körtik Tepe
Living by the Water – Boon and Bane for the People of Körtik Tepe

... are the most common fresh fractures within their sample of 384 fish hooks of the Stone Age site of Ajvide, Sweden, and of replicas, which have been used for material strength tests. The top of the shank is preserved only in three items, which have a thickened round end to fix the line. None of the i ...
Cnidaria
Cnidaria

... • All are carnivorous • Absorb nutrients by filtering water • Tentacles put the prey into the mouth where digestive enzymes are used to break prey down into organic substances ...
Document
Document

... buoyancy. Thus, it helps fishes to ascend or descend and stay in the water current. Question 11: What are the modifications that are observed in birds that help them fly? Answer 11: Birds have undergone many structural adaptations to suit their aerial life. Some of these adaptations are as follows. ...
Tuesday January 25, 2005 BIOL L100 Indiana University Southeast
Tuesday January 25, 2005 BIOL L100 Indiana University Southeast

... 2. Prevents water loss on land (waxy layer) ...
Phylum Echinodermata and Phylum Chordata
Phylum Echinodermata and Phylum Chordata

... Segmented body; vertebrae, for example. Endoskeleton Notochord: a connective-tissue body stiffener. Dorsal tubular nerve cord – forms the brain and spinal cord. Pharyngeal pouches and slits – gill related structures that may appear early in development. In addition to forming gills, these structures ...
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Aquatic locomotion

Aquatic locomotion is biologically propelled motion through a liquid medium. The simplest propulsive systems are composed of cilia and flagella. Swimming has evolved a number of times in a range of organisms including arthropods, fish and molluscs.
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