1) __________________ and _____________________ are early tetrapods that do not have features unique to fish. Describe how these two species differ anatomically and what that means about where they each lived.
1->The last major group of Animal kingdom is Phylum chordata.It is largest Deuterostome phyla.It is highest and most important phylum comprising a vast variety of living and extinct animals including man itself.Phylum chordata divided in to 2 group-Protochordata and Euchordata or Vertebrata. Subphylum vetebrata include 2 superclass--PISCES and TETRAPODS.Superclass PISCES include all fishes and Superclass TETRAPODS include class Amphibia,Reptilia,Aves and Mammalia.ERYOPS , ICHTHYOSTEGAand DIPLOCAULUS are early tetrapods .They are called stem amphibians .
In which, ERYOPS are salamander or crocodile like .Teeth large with much folded dentine.They dominate in Carboniferous to Triassic period.ICHTHYOSTEGA are small salamander like .In which head is large ,flat and vertebrae tubular.Notochord and spinal cord housed in common cavity .So ICHTHYOSTEGA believed to be ancestor of modern Salientia and Urodela and they dominate in Carboniferous to Permian Period .DIPLOCAULUS are small salamander or eel like .They consist cylindrical vertebrae ,and each made of a single piece and ribs articulating intervertebrally.They dominate in carboniferous to Permian period.
1) __________________ and _____________________ are early tetrapods that do not have features unique to fish. Describe...
List two external features that are common to all arthropods Describe the circulatory system of an arthropod What is the one unique anatomical feature of the echinoderms? How do the body plans of echinoderm larva and the adults differ? List the four features all chordates share at some point in their development.
please answer 8 my precious were incorrect E. Identify and briefly describe the diversity (how manysecies and geographic distribution of the two main lineages of extant sarcopterygian fish. Names of lineages (towed 6n ny) How many species Distribution 8. Chondrichthyes have a long evolutionary history. (5) A. In class, we discussed the three main radiations of Chondrichthyes. As discussed in class, identify and briefly describe how three features associated with feeding (also discussed in your text) and locomotion changed during...
Class Amphibia (Subphylum a vertebrata) 1. Do they have any unique structures? (Why are they in this class and not another?) They are tetrapods (four leg) undergo metmorphosis They adapted to living on land They get oxygen through their skin & they have lungs, 2. What type of skin or body covering do they have? 3. How do they reproduce? 4. Is water necessary for reproduction? Yes, they lay eggs in water 5. Where do they live? found in moist...
3. What are the unique features of e-commerce technology? Describe the basics of each feature and how it relates to e-commerce. 4. What are some of the major advantages and potential disadvantages of being a first mover?
What are two reasons early tetrapods AND modern amphibians must live near water? (select two) © Multiple answers: You can select more than one option O A adults have gills and must return to water frequently to do gas exchange B adults release eggs and sperm into water O C adults are aquatic O D gas exchange occurs across skin that must remain moist O E all adult amphibians have limbs that are like fins
For this discussion, describe how you typically communicate nonverbally? Do you have particular or unique patterns of nonverbal communication? What have others said to you about your non-verbal communication? How do you think your non-verbal communication impacts your effectiveness as a communicator? In what ways do you think your non-verbal communication patterns will influence your ability to provide client-centered care?
please answer 8 my precious were incorrect E. Identify and briefly describe the diversity (how manysecies and geographic distribution of the two main lineages of extant sarcopterygian fish. Names of lineages (towed 6n ny) How many species Distribution 8. Chondrichthyes have a long evolutionary history. (5) A. In class, we discussed the three main radiations of Chondrichthyes. As discussed in class, identify and briefly describe how three features associated with feeding (also discussed in your text) and locomotion changed during...
.1 Imagine a small fish that lives in a rocky coastal area. The fish is a light color almost white but the rocks in which it hides are dark black and grey. Describe how this population of fish could change to be a darker color (to be more camouflaged in the rocks) through the process of natural selection. Include a list of steps for this fish that would have to take place for natural selection to work. 2. Answer each...
1. Be able to draw and describe a monosynaptic reflex, a polysynaptic reflex, and a cross-extensor reflex. What is different about each of these compared to the others? 2. Describe the regions of the spinal cord and how the neurons enter and leave the cord. Be able to describe the neurons in incoming sensory pathways (first, second and third-order neurons) and the neurons used in outgoing motor pathways (upper and lower motor neurons). Anatomically where do you find each of...
These questions refer to an organic dye lab that was done in organic chemistry. 1; Discuss what features a molecule needs to possess in order to be classified as a dye, and explain the different means in which they adhere to fabrics. 2; Describe how indigo and azo dyes differ from each other, both in how they are prepared and their mechanism of action for dyeing clothing, be sure to include structures/mechanisms.