QUESTION 1 What type of symmetry does this organism exhibit? binomial asymmetrical bilateral radial
Which of the three types of symmetry(asymmetrical, radial symmetry, bilateral symmetry) is considered most ancestral and which one is most derived?
Which type of symmetry does each of the following animals display? Sponge, hydra, bobcat, jelly, snake, turtle, and octopus. Group these animals in either asymmetry, radial symmetry, and bilateral symmetry.
Can someone help me out with this question please? What does the bilateral symmetry of the bipinnaria larvae suggest about the ancestry of the sea stars, and perhaps of the echinoderms?
many animals with radial symmetry are sessile. what does this mean?
1. Cephalization is associated with: a. Metamorphosis b. Radial Symmetry c. Bilateral Symmetry d. Segmentation (Metamerism) e. A complete digestive tract 2. One of the most unusual features of members of the phylum Rotifera not found in most animals is: a. They have a one-way digestive tract b. They can reproduce parthenogenetically c. They are triploblastic d. During development, the blastopore becomes the mouth e. All of the above are unusual features not typically found in any other animals 3....
1. Which of the following features is found in the common ancestor of the deuterostomes? Radial symmetry Notochord Pharyngeal slits 2. Which of the deuterostome groups does not display bilateral symmetry at some time during their development? Echinoderms Hemichordates Chordates None of the above 3. Which of the following deuterostome groups include species that live on land? Hemichordates Chordates Echinoderms
i was thinking type of symmetry, but dont know for sure Question 1 1 pts What evidence suggests that humans are more closely related to starfish (echinoderms) than to lobsters (arthropods)? Embryonic developmental pathway Type of symmetry Exoskeleton O Possession of tissues Sexual reproduction
question 4 2. Examine some of the echinoderm specimens. Be able to recognize a sea star, sea urchin, and sea cucumber. Echinoderms are characterized by their "spiny skin". What are these spines made of, and from what do they arise? Instead of mouth Sponge have ting pores called Ostia in their outer mooth walls through water is drops cells in the walls filter foot from the water as the where is through 3. We associated radial symmetry with ancient phyla...
pata, Hydra Sketch the Hydra Label tentacles, mouth Answer Questions 1. What type of symmetry do Hydra exhibit 2. What body form does the hydra have 3. Name the stinging cells on the surface of the tentacles. B. Data, Planaria (Dugesia) Sketch the Planaria Label the eyespots, pharynx Questions Answer 1. How do planarians move? Place a piece of white paper half way under the petri dish, leaving the other half over the black table. Wait for several minutes. 2....
5. Consider the system: dz 4y 1 dy (a) Are these species predator-prey or competing? b) What type of growth does species z exhibit in absence of species y? What type of growth does species y exhibit in absence of species r? (c) Find all critical (equilibrium) points d) Using the Jacobian matrix, classify (if possible) each critical (equilibrium) point as a stable node, a stable spiral point, an unstable node, an unstable spiral point, or a saddle point. (e)...