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Serial segmentation is a key characteristic of which of the following phyla? |
a. Mollusca |
b. Brachiopoda |
c. Bryozoa |
d. Annelida |
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- Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata c. Urochordata d. VertebrataMollusca (clams, abalone, nudibranchs, snails, squid, octopi, etc). Unifying features include shell, mantle, radula, foot, visceral mass Which classes show a loss of the shell. How does the shell benefit an organism, how does the loss of the shell benefit other members of this phylum? Distinguish between polyplacophora, bivalva, gastropoda, and chephalopoda We see the first evolution of a true eye here. Who has it? What are chromatophores? How doe members of this group use them? What other unique defense addaptaions do we see in this group? (warning colors, 2 shells, ink)1)What is the best synapomorphy for Phylum Mollusca? 2) What is a synanthropic arthropod? Provide an example. Please answer asap and in short and content should not be palgarised please
- please explain What is the primary characteristic of the Ecdysozoa (Nematoda + Arthopoda)? 1. They all have spiral cleavage. 2. They shed their exoskeletons and have the ability to molt. 3. None of the options in correct 4. They all have segmentation. 5. They all have tropchophore larvae.CE Which of the following is a synapomorphy of the Anthozoa? Exoskeletons of calcium carbonate O Corals and sea anemones Absence of medusa stage Presence of planula larva stage Presence of cnidacWhat structure differentiates Ectoprocts and Brachiopods from other Lophotrochozoa? Select one: 1-Complete digestive tract with two openings. 2- Fluid-filled coelom. 3- Triploblastic. 4- Suspension feeding via lophophore. 5- Trochophore larval stage. Please provide explanations in detail for the correct option as well as the incorrect options.
- Draw a simple diagram (cross section) to distinguish between a coelomate and either a pseudocoelomate or an acoelomate. In a few words point out the key difference.Distinguish the following phyla by their characteristics and features. Give a specific example for each. A. Poriferans B. Cnidarians C. CoelenteratesFor phylum Mollusca, Class Cephalopod 1. Characteristics. List whether the organism is:a. Diploblastic or triploblastic (if applicable) b. Deuterostome or protostome (if applicable) c. Coelomate, pseudocoelomate or eucoelomate (if applicable) 2. Organ/system characteristics. Answer the following for each organism:a. How is their circulatory system? b. Excretory/osmoregulation: How does the organism eliminate waste? What organs do they use? 3. Ecology. Describe/answer the following for each organism:a. Does it have a complete or incomplete digestive system? How does this animal feed?b. Identify any unique feeding structure• Be sure to use the correct terms to identify any unique feeding structure(s) used by the animal.
- For phylum Echinoderms and class Crinoidea 1. Characteristics. List whether the organism is:a. Diploblastic or triploblastic (if applicable) b. Deuterostome or protostome (if applicable) c. Coelomate, pseudocoelomate or eucoelomate 2. Organ/system characteristics. Answer the following for each organism:a. How is their circulatory system? b. Excretory/osmoregulation: How does the organism eliminate waste? What organs do they use?c. Skeleton/support: List the structures or ways this organism supports itself. 3. Ecology. Describe/answer the following for each organism:a. Does it have a complete or incomplete digestive system? How does this animal feed?b. Identify any unique feeding structure• Be sure to use the correct terms to identify any unique feeding structure(s) used by theanimal.Describe a Phylum Porifera organism as: Parazoa or Eumetazoa Diploblastic or Triploblastic or neither Assymetrical or Radial Symmetrical or Bilaterially Symmetrical Aquatic or Terrestrial Acoelomate or Pseudocoelomate or Coelomate Protostome or Deuterostome or Neither Lophotrochozan or Ecdysosoan or NeitherClass Gastropoda and Class Bivalvia independently evolved modifications to their body plan that allowed them to invade sandy and muddy habitats, burying their bodies under the surface and accessing the surface via siphons. For an example organism in each Class, (1) draw a diagram showing the morphological modifications and (2) write a description of how this organism had evolved from the hypothetical ancestral mollusk (HAM) body plan.