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- Nematodes (roundworms) differs from an earthworm in that: O a. Nematodes have no body cavity. O b. Nematodes are all parasitic. c. Nematodes have no head or eyes. O d. Nematodes move using leg-like projections of the body. O e. Nematodes have no circular muscles.In arthropods, the tracheal system isa. a unique set of structures that function in ingestion and digestion offood.b. a series of branching tubes extending into the body that allow for gasexchange.c. a series of tubules that allow waste products in the blood to bereleased into the digestive tract.d. the series of ommatidia that form the compound eye.e. none of the above.Archaeocytes are associated witha. digestion in bacteria.b. the digestive tracts of sponges.c. the filter organs of continuous feeders.d. the human appendix.e. the ingestion and distribution of food in sponges.
- one of these organs is only innervated by.11 :sympathetic system * Lungs O Arrector pili O Heart O Stomach OAlthough some sharks close their eyes just before they bite,their bites are on target. Researchers have noted that sharksoften misdirect their bites at metal objects and that they canfind batteries buried under sand. This evidence suggests thatsharks keep track of their prey during the split second beforethey bite in the same way that(A) a rattlesnake finds a mouse in its burrow.(B) an insect avoids being stepped on.(C) a star-nosed mole locates its prey in tunnels.(D) a platypus locates its prey in a muddy river.Nematodes (roundworms) differs from an earthworm in that: O a. Nematodes have no body cavity. O b. Nematodes are all parasitic. Nematodes have no head or eyes. d. Nematodes move using leg-like projections of the body. O e. Nematodes have no circular muscles.
- Figure 28.45 Which of the following statements about insects is false? Insects have both dorsal and ventral blood vessels. Insects have spiracles, openings that allow air to enter. The trachea is part of the digestive system. Insects have a developed digestive system with a mouth, crop, and intestine.Why are the Cnidaria neither protostomes nor deuterostomes? O they don't have body cavities O they only have 2 dermal layers O their mouth and anus develop simultaneously they only have 1 hole in their digestive cavity O6. How have the sensory organs (such as the eye, ear, etc.) changed througout the animal kingdom? Provide specific examples. I D Focus earch DII PrtScn Home End F4 F5 F6 F8 F9 & 近
- 10:50 .ull LTE Done 1 of 2 We discussed the four primary components of animals' body plans. Describe an echinoderm in terms of these four primary components. !!!1. Insect blood cells are hemocites also carry oxygen circulate whole body including wing veins circulate only dorsal vessel are generally red 2. The followings are constructed at least partly of cuticle prothorax the peritrophic membrane appendicular ovipositor fat body esophagus 3. The correct order of mouthparts, anterior to posterior is mandibles, labrum, maxillae, labium maxillae, proventriculus, labrum, mandibles labrum, mandibles, maxillae, labium labium, gonocoxa, basalare, mandibles clypeus, labium, mandibles, maxillae, labrumN A C E F M G E F Gy/99 Livingstone OBIODIDAC Livingstone BIODIDAC Figure 2. Frog's Internal Anatomy (Part 1) Anatomy (Part 2) Figure 3. Frog's Internal B. P.