How did the giraffe get its neck?1
... week and must travel many miles to find enough food. Their generic name, Giraffa camelopardalis, means ‘one who walks swiftly, a camel marked like a leopard’. Like camels, giraffes have a (small) hump on their backs, and can go without drinking water for long periods, surviving on the moisture conte ...
... week and must travel many miles to find enough food. Their generic name, Giraffa camelopardalis, means ‘one who walks swiftly, a camel marked like a leopard’. Like camels, giraffes have a (small) hump on their backs, and can go without drinking water for long periods, surviving on the moisture conte ...
Biology 122L – Invertebrate zoology lab Cnidarian diversity lab
... capsules, or cnidae, that give the phylum its name. Cnidae are produced only by ...
... capsules, or cnidae, that give the phylum its name. Cnidae are produced only by ...
Taking a Brief Look to the Phylum Cnidaria
... All cnidarians can regenerate, allowing them to recover from injury and to reproduce asexually. Medusae have limited ability to regenerate, but polyps can do so from small pieces or even collections of separated cells. This enables corals to recover even after apparently being destroyed by predators ...
... All cnidarians can regenerate, allowing them to recover from injury and to reproduce asexually. Medusae have limited ability to regenerate, but polyps can do so from small pieces or even collections of separated cells. This enables corals to recover even after apparently being destroyed by predators ...
Identification Guide
... Extra Information: This species of slug is marked by two dark lines on both sides of the body and has a greyishwhite underside. Also the mucus of this species is colourless and watery and large amounts of this are produced especially when it is disturbed. ...
... Extra Information: This species of slug is marked by two dark lines on both sides of the body and has a greyishwhite underside. Also the mucus of this species is colourless and watery and large amounts of this are produced especially when it is disturbed. ...
Introduction to Invertebrates
... Platform®”, (collectively “CK-12 Marks”) are trademarks and service marks of CK-12 Foundation and are protected by federal, state and international laws. Any form of reproduction of this book in any format or medium, in whole or in sections must include the referral attribution link http://www.ck12. ...
... Platform®”, (collectively “CK-12 Marks”) are trademarks and service marks of CK-12 Foundation and are protected by federal, state and international laws. Any form of reproduction of this book in any format or medium, in whole or in sections must include the referral attribution link http://www.ck12. ...
Features Used to Classify Animals
... by an epithelial membrane. This membrane also lines the organs within the coelom, connecting and holding them in position while allowing them some free motion. Annelids, mollusks, arthropods, echinoderms, and chordates are all eucoelomates. A third group of triploblasts has a slightly dierent coelo ...
... by an epithelial membrane. This membrane also lines the organs within the coelom, connecting and holding them in position while allowing them some free motion. Annelids, mollusks, arthropods, echinoderms, and chordates are all eucoelomates. A third group of triploblasts has a slightly dierent coelo ...
09 Introduction to Animals
... C. Animal Adaptations 1. An inherited trait that increases an organism’s chances of surviving and reproducing in its environment is called a(n) ...
... C. Animal Adaptations 1. An inherited trait that increases an organism’s chances of surviving and reproducing in its environment is called a(n) ...
Slide 1
... The embryos of marsupials and eutherians are nurtured by the placenta within the uterus ◦ Marsupial offspring complete development attached to the mother’s nipple, usually inside a pouch ...
... The embryos of marsupials and eutherians are nurtured by the placenta within the uterus ◦ Marsupial offspring complete development attached to the mother’s nipple, usually inside a pouch ...
Features Used to Classify Animals
... by an epithelial membrane. This membrane also lines the organs within the coelom, connecting and holding them in position while allowing them some free motion. Annelids, mollusks, arthropods, echinoderms, and chordates are all eucoelomates. A third group of triploblasts has a slightly dierent coelo ...
... by an epithelial membrane. This membrane also lines the organs within the coelom, connecting and holding them in position while allowing them some free motion. Annelids, mollusks, arthropods, echinoderms, and chordates are all eucoelomates. A third group of triploblasts has a slightly dierent coelo ...
Intro to Invertebrates
... Cnidarians, in the phylum Cnidaria, include organisms such as the jellyfish (Figure 11.6 ) and sea anemones (Figure 11.7 and Figure 11.8 ) that are found in shallow ocean water. You might recognize that these animals can give you a painful sting if you step on them. That’s because cnidarians have st ...
... Cnidarians, in the phylum Cnidaria, include organisms such as the jellyfish (Figure 11.6 ) and sea anemones (Figure 11.7 and Figure 11.8 ) that are found in shallow ocean water. You might recognize that these animals can give you a painful sting if you step on them. That’s because cnidarians have st ...
Reptiles and Amphibians
... Reptiles are very unique animals. As a group they are ectothermic animals that share the common characteristics of possessing a backbone, scaly skin, lungs, and claws (when appendages are present). Most are egg bearers (either inside or outside the body). Most do not show parental care (alligators a ...
... Reptiles are very unique animals. As a group they are ectothermic animals that share the common characteristics of possessing a backbone, scaly skin, lungs, and claws (when appendages are present). Most are egg bearers (either inside or outside the body). Most do not show parental care (alligators a ...
INVERTEBRATES
... 1. Terrestrial and aquatic animals which body is divided into assembled segments in different ways: head, thorax and abdomen; cephalothorax and abdomen.. 2. Hard articulated appendages appear from the segments in different forms: legs, antennae, chelicerae or palps. 3. The body presents bilateral sy ...
... 1. Terrestrial and aquatic animals which body is divided into assembled segments in different ways: head, thorax and abdomen; cephalothorax and abdomen.. 2. Hard articulated appendages appear from the segments in different forms: legs, antennae, chelicerae or palps. 3. The body presents bilateral sy ...
the brainy bunch - Kaufmann Productions
... They have large eyes and highly developed eyesight with a characteristic W shaped pupil. The eye structure is quite different to that of vertebrates like fish, reptiles and mammals and appears to represent a different evolutionary process. They cannot see colour but can see polarized light which imp ...
... They have large eyes and highly developed eyesight with a characteristic W shaped pupil. The eye structure is quite different to that of vertebrates like fish, reptiles and mammals and appears to represent a different evolutionary process. They cannot see colour but can see polarized light which imp ...
Animal Origins and the Evolution of Body Plans
... systems inversely. A lobster’s nervous system runs up its ventral (belly) surface, whereas a vertebrate’s runs down its dorsal (back) surface. ...
... systems inversely. A lobster’s nervous system runs up its ventral (belly) surface, whereas a vertebrate’s runs down its dorsal (back) surface. ...
Workshop: The Evolution of Animalia
... I don’t think you need me to provide an answer to this one. But you can at least start with this: Knowing the embryonic derivations and evolutionary links among animalia enables us to place our own species in the evolutionary continuum. You may expound on the philosophical, social, and even spiritua ...
... I don’t think you need me to provide an answer to this one. But you can at least start with this: Knowing the embryonic derivations and evolutionary links among animalia enables us to place our own species in the evolutionary continuum. You may expound on the philosophical, social, and even spiritua ...
Position in Animal Kingdom
... • Tips open, closed, some wrap • Contents injected, adhesives, toxins ...
... • Tips open, closed, some wrap • Contents injected, adhesives, toxins ...
Document
... metazoan organization permit and to some extent even promote evolution of large body size (figure 3.1). Large size confers several important physical and ecological consequences for an organism. As animals become larger, the body surface increases much more slowly than body volume because surface are ...
... metazoan organization permit and to some extent even promote evolution of large body size (figure 3.1). Large size confers several important physical and ecological consequences for an organism. As animals become larger, the body surface increases much more slowly than body volume because surface are ...
Overview of Invertebrates
... Name___________________ Class______________ Date________ Read these passages from the text and answer the questions that follow. Complete Digestive System Early invertebrates had an incomplete digestive system. There was just one opening for the mouth and anus. Ancestors of modern roundworms were th ...
... Name___________________ Class______________ Date________ Read these passages from the text and answer the questions that follow. Complete Digestive System Early invertebrates had an incomplete digestive system. There was just one opening for the mouth and anus. Ancestors of modern roundworms were th ...
Overview of Invertebrates
... _____ 3. A psuedocoelom refers to concentration of nervous tissue at one end of the animal. _____ 4. Some invertebrates move, but cannot regulate which direction they move or how fast they move. _____ 5. A larva is a juvenile stage of the life cycle. _____ 6. A bilaterally symmetrical invertebrate h ...
... _____ 3. A psuedocoelom refers to concentration of nervous tissue at one end of the animal. _____ 4. Some invertebrates move, but cannot regulate which direction they move or how fast they move. _____ 5. A larva is a juvenile stage of the life cycle. _____ 6. A bilaterally symmetrical invertebrate h ...
5 7.2 A typical cell of any organ- ism contains genetic instructions
... other words, the structures of cells, tissues, organs, and organ systems are closely related to their functions. Think of the frog's skeletal system. Bones have a strong, tough structure. This structure functions to support the frog's body. Obtaining Food and Oxygen An animal obtains food by eating ...
... other words, the structures of cells, tissues, organs, and organ systems are closely related to their functions. Think of the frog's skeletal system. Bones have a strong, tough structure. This structure functions to support the frog's body. Obtaining Food and Oxygen An animal obtains food by eating ...
Ch. 25
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Lesson Overview
... Today, exciting research is revealing how changes in the genes that control embryological development are connected to the evolution of body structures. This research field, often referred to as “evodevo,” is one of the hottest areas in biology today. Body plan- organization of body structures that ...
... Today, exciting research is revealing how changes in the genes that control embryological development are connected to the evolution of body structures. This research field, often referred to as “evodevo,” is one of the hottest areas in biology today. Body plan- organization of body structures that ...
Animal coloration
Animal coloration is the general appearance of an animal resulting from the reflection or emission of light from its surfaces. Some animals are brightly coloured, while others are hard to see. In some species, such as the peacock, the male has strong patterns, conspicuous colours and is iridescent, while the female is far less visible.There are several separate reasons why animals have evolved colours. Camouflage enables an animal to remain hidden from view. Signalling enables an animal to communicate information such as warning of its ability to defend itself (aposematism). Animals also use colour in advertising, signalling services such as cleaning to animals of other species; to signal sexual status to other members of the same species; and in mimicry, taking advantage of another species' warning coloration. Some animals use colour to divert attacks by startle (deimatic behaviour), surprising a predator e.g. with eyespots or other flashes of colour, and possibly by motion dazzle, confusing a predator's attack by moving a bold pattern (such as zebra stripes) rapidly. Some animals are coloured for physical protection, such as having pigments in the skin to protect against sunburn, while some frogs can lighten or darken their skin for temperature regulation. Finally, animals can be coloured incidentally. For example, blood is red because the haem pigment needed to carry oxygen is red. Animals coloured in these ways can have striking natural patterns.Animals produce colour in different ways. Pigments are particles of coloured material. Chromatophores are cells containing pigment, which can change their size to make their colour more or less visible. Some animals, including many butterflies and birds, have microscopic structures in scales, bristles or feathers which give them brilliant iridescent colours. Other animals including squid and some deep-sea fish can produce light, sometimes of different colours. Animals often use two or more of these mechanisms together to produce the colours and effects they need.