Name one vertebrate animal with both endo and exo skeleton

Animals in __________ and __________ typically have structural features made of calcium.

Give at least 10 exoskeletons found in animals, source, its description and state their embryonic origin. (Explain in 1-3 sentences) (Use the table)

Birds differ from their closest relatives, the reptiles, in what ways? (choose all that apply) birds are capable of powered flight, while some reptiles can glide only the birds lay eggs on land; the reptiles can only lay their eggs in water birds have feathers, reptiles have scales the reptiles have a series of internal air sacs that allow a very efficient extraction of oxygen the bones of reptiles are too lightweight to permit flight birds are endothermic, while reptiles are generally ectothermic

This question is pertains to fish length   In what cases would total length not be totally revealing about the length of a fish – can you think of any species where the caudal fin might make this difficult?  What additional measurements might you consider adding? (Please answer all the parts to this question and type your answer please)

The evolution of different body plans in animals has led to a wide diversity of species. For example, in Cnidaria (which includes jellyfish and corals) we see a radically different body plan compared to insects or birds. What significant evolutionary development is exhibited by insects and birds that is not present in Cnidaria? The development of bilateral symmetry and cephalization. The development of radial symmetry. The development of a calcified exoskeleton. The development of tentacles for capturing prey.

One important innovation in animals that can be seen very nearly in animals from the phylum Annelida is the evolution of segmentation. Explain reasons why segmentation may represent an evolutionary advantage for more complex animals???

Describe a bipedal skeleton and advantages of bipedal locomotion

Compare the bat to the bird. Where is the bat's ulna? Are there any remnants of it? How is the bat's wing membrane supported by its skeleton? Be precise. Does a bird's wing work in the same way?  How many metacarpals and digits ("fingers") does it have? (This is all just one question on comparing the bat to the bird)

2:45 Animals Lab Part 1.pdf Figure 13.3. (A) Polyp and medusa forms of cnidarians and (B) a hydra poly 2. Obtain a preserved jellyfish specimen called "Goneonemus. Use your dissecting microscope to observe. Sketch the specimen in the space below. Dashboa... Student Sketch of Jellyfish Goneonemus Locate the following structures on your jellyfish and label them on your drawing. a. Gastrovascular activity-the central digestive cavity. b. Tentacles c. Cnidocystes-clusters of stinging cells in the tentacles 3. Obtain a live "Hydra" from the culture and observe it using your dissecting scope. Sketch the specimen in the space below. а Exercise Diversity of Life: Animals 123 124 Diversity of Life: Animals 12 Student Sketch of Hydrat Locate the following structures on your hydra and label them on your drawing a. Mouth b. Tentacles (how many does your hydra have?) c. Body stalk d. Gastrovascular cavity (seen through the body wall) 4. Observe the other specimens displayed at the counter. 2…