comparative anatomy ppt
... inherited from a common ancestor. Their bodies have been modified and parts have been lost through natural selection, resulting in adaptation to their respective lifestyles over millions of years. On the surface, these animals look very different, but the relationship between them is easy to demonst ...
... inherited from a common ancestor. Their bodies have been modified and parts have been lost through natural selection, resulting in adaptation to their respective lifestyles over millions of years. On the surface, these animals look very different, but the relationship between them is easy to demonst ...
Biology 355: Entomology Fall 2004
... 1b. Anatomy of the abdomen- The abdomen is relatively simple in form. It consists of a series of repeated segments called metameres. Each metamere has a dorsal and a ventral sclerite (hardened plate of exoskeleton). The doral sclerite is called the tergum, and the ventral one is called the sternum. ...
... 1b. Anatomy of the abdomen- The abdomen is relatively simple in form. It consists of a series of repeated segments called metameres. Each metamere has a dorsal and a ventral sclerite (hardened plate of exoskeleton). The doral sclerite is called the tergum, and the ventral one is called the sternum. ...
chapter 46: arthropods
... Additionally, all arthropod bodies are segmented. Some individuals have a large number of separate segments, while others have segments that are fused into functional groups through the process of tagmatization. The compound eye is another important structure in many arthropods as it is made up of m ...
... Additionally, all arthropod bodies are segmented. Some individuals have a large number of separate segments, while others have segments that are fused into functional groups through the process of tagmatization. The compound eye is another important structure in many arthropods as it is made up of m ...
The Wonderful World of Animals!
... How do we begin to classify animals? • Bilateral symmetry: great for animals that need to move fast • With bilateral symmetry came “cephalization” – The movement of sensory organs and nervous tissues in a head at the anterior of the animal – Good to have this all up front…it’s what encounters a new ...
... How do we begin to classify animals? • Bilateral symmetry: great for animals that need to move fast • With bilateral symmetry came “cephalization” – The movement of sensory organs and nervous tissues in a head at the anterior of the animal – Good to have this all up front…it’s what encounters a new ...
Invertebrates
... Exoskeleton – hard covering of the body Nervous system Antennae- feelers that sense touch, taste, and smell. Compound eye- several identical light sensitive units. Brain/nerve cord ...
... Exoskeleton – hard covering of the body Nervous system Antennae- feelers that sense touch, taste, and smell. Compound eye- several identical light sensitive units. Brain/nerve cord ...
mantle cavity
... Class Gastropoda – snails and slugs - marine (most), fresh-water or terrestrial, by far the largest class (about 70,000 species) - head present, eyes on tentacles - terrestrial snails lack gills, respire through lining of ...
... Class Gastropoda – snails and slugs - marine (most), fresh-water or terrestrial, by far the largest class (about 70,000 species) - head present, eyes on tentacles - terrestrial snails lack gills, respire through lining of ...
Concept Check Questions
... Arthropods are segmented coelomates that have an exoskeleton and jointed appendages ...
... Arthropods are segmented coelomates that have an exoskeleton and jointed appendages ...
III.4. Animals-I
... are expressed in developing limbs in at least six different phyla. The figure is from your text (4th edition), with the conclusion suitably modified to reflect the fact that the experiment shows that the genes, but not necessarily the structures for which they presently code, are homologous. Not not ...
... are expressed in developing limbs in at least six different phyla. The figure is from your text (4th edition), with the conclusion suitably modified to reflect the fact that the experiment shows that the genes, but not necessarily the structures for which they presently code, are homologous. Not not ...
Phylum Arthropoda
... segments (metamerism) • Tagmatization- fusion and specialization of segments. ...
... segments (metamerism) • Tagmatization- fusion and specialization of segments. ...
invert. clicker questions
... body forms. On what basis are all these animals thought to be in the same clade? ...
... body forms. On what basis are all these animals thought to be in the same clade? ...
Chapter 13 Invertebrates with Coeloms
... They are also indispensable to life as we know it because they also: • kill other pest organisms by the millions • are important food source for higher organisms • pollinate crops • recycle nutrients back into the food chain ...
... They are also indispensable to life as we know it because they also: • kill other pest organisms by the millions • are important food source for higher organisms • pollinate crops • recycle nutrients back into the food chain ...
Document
... ciliated funnel. • Each nephridium passes posteriorly through the septum into the following segment. Where it forms coiled tube . • It opens at the base of aparapodium on the ventral surface through nephridiopore . ...
... ciliated funnel. • Each nephridium passes posteriorly through the septum into the following segment. Where it forms coiled tube . • It opens at the base of aparapodium on the ventral surface through nephridiopore . ...
Chelicerata2 [Compatibility Mode]
... Open circulatory system with bloodblood-like tissue called hemolymph. • Arthropods must molt, or shed their exoskeleton, in order to grow in size. ...
... Open circulatory system with bloodblood-like tissue called hemolymph. • Arthropods must molt, or shed their exoskeleton, in order to grow in size. ...
Homologous Structures - Jefferson School District
... How to set up your notebook Left side • For examples and think/pair/write ...
... How to set up your notebook Left side • For examples and think/pair/write ...
Glossary
... nutrient cycling the movement of nutrients, usually mineral in nature, among trophic levels nymph the young of grasshoppers; immature insects that resemble the adult in body form, differing principally in wing development and reproductive capabilities pallium an erect conical structure at the ...
... nutrient cycling the movement of nutrients, usually mineral in nature, among trophic levels nymph the young of grasshoppers; immature insects that resemble the adult in body form, differing principally in wing development and reproductive capabilities pallium an erect conical structure at the ...
Amazing Aquatic Arthropods Part 2
... literally means “jointed feet.” Arthropods are invertebrates that have exoskeletons and jointed appendages. The Jacoby Creek watershed houses both terrestrial and aquatic arthropods, all of which can be observed. Aquatic insects are indicators of good water quality, especially dissolved oxygen. Aqua ...
... literally means “jointed feet.” Arthropods are invertebrates that have exoskeletons and jointed appendages. The Jacoby Creek watershed houses both terrestrial and aquatic arthropods, all of which can be observed. Aquatic insects are indicators of good water quality, especially dissolved oxygen. Aqua ...
Chapter 11 Structure and
... 25. Bivalves are mollusks that have two shells held together by hinges and strong muscles. 26. Bivalves have two shells. Unlike gastropods, they do not have radulas. Most are filter feeders; they strain their food from water. 27. a, c 28. cephalopods 29. They use their muscular tentacles. Their larg ...
... 25. Bivalves are mollusks that have two shells held together by hinges and strong muscles. 26. Bivalves have two shells. Unlike gastropods, they do not have radulas. Most are filter feeders; they strain their food from water. 27. a, c 28. cephalopods 29. They use their muscular tentacles. Their larg ...
Shoulder Anatomy
... This is an axial T1 MRI image at the top of the shoulder. All structures look dark because of fat suppression. We use fat suppression with T1 images because for this study we injected contrast into the joint. Fat suppression is commonly used after contrast is given on MRI to increase the conspicuit ...
... This is an axial T1 MRI image at the top of the shoulder. All structures look dark because of fat suppression. We use fat suppression with T1 images because for this study we injected contrast into the joint. Fat suppression is commonly used after contrast is given on MRI to increase the conspicuit ...
Scientists place living things into groups based on their physical
... • Antennae (absent in some types) • Mouthparts • Leg-like appendages (absent in some types) • Legs ...
... • Antennae (absent in some types) • Mouthparts • Leg-like appendages (absent in some types) • Legs ...
Animal Kingdom Notes
... cnidarians. Mostly marine organisms, there are a few that live in freshwater. On the tentacles are nematocysts. These are the structures responsible for causing the "sting". The mollusk phylum includes animals that live on land and in both fresh and marine water. They have a muscular foot that is us ...
... cnidarians. Mostly marine organisms, there are a few that live in freshwater. On the tentacles are nematocysts. These are the structures responsible for causing the "sting". The mollusk phylum includes animals that live on land and in both fresh and marine water. They have a muscular foot that is us ...
Arthropod head problem
The arthropod head problem is a long-standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups, and how they are evolutionarily related to each other. While the dispute has historically centered on the exact make-up of the insect head, it has been widened to include other living arthropods such as the crustaceans and chelicerates; and fossil forms, such as the many arthropods known from exceptionally preserved Cambrian faunas. While the topic has classically been based on insect embryology, in recent years a great deal of developmental molecular data has become available. Dozens of more or less distinct solutions to the problem, dating back to at least 1897, have been published, including several in the 2000s.The arthropod head problem is popularly known as the ""endless dispute"", the title of a famous paper on the subject by Jacob G. Rempel in 1975, referring to its seemingly intractable nature. Although some progress has been made since that time, the precise nature of especially the labrum and the pre-oral region of arthropods remain highly controversial.