Weegy: olfactory receptors. satisfied? please click good. Thanks User: Birds have a keen sense of _____ and rely on this sense the most. User: During gastrulation, animals whose first opening is the anus are called Weegy: Deuterostomes. User: This animal represents what kind of body symmetry : User: This animal represents what kind of body symmetry : asymmetry radial symmetry bilateral symmetry Weegy: The type of body symmetry star fish represents : b. radial symmetry User: This animal represents what kind of body symmetry? asymmetry radial symmetry bilateral symmetry Question #25MultipleChoice Score: _____ do not have organs held together and protected by surrounding fluid. AcoelomatesPseudocoelomatesCoelomates Question #26MultipleSelect Score: Select all that apply. Which of the following characteristics does an arthropod have? segmentationendoskeletonjointed appendagesnotochordcoelomtissues, organs, and organ systems Question #27MultipleChoice Score: Animals in the same phylum may have different nervous system structures. For example, octopuses have large, complex brains while clams have a simple _____ network. ladder-likering-likenerve net Question #28MultipleChoice Score: Spiders have _____ to absorb salts and wastes while humans have microscopic subunits in the kidneys called _____ to filter blood. nephridia, nephronsMalpighian tubules, nephronssetae, nephridia Question #29MultipleSelect Score: Select all that apply. Some animals have specific immunity, which means _____. the body attacks anything foreign to the bodythe body attacks particular foreign invadersimmunity is inborn or innateimmunity is adaptive Question #30MultipleChoice Score: The four main types of tissues of animals are: muscular, which is in _____; nervous, which is in _____; epithelial, which is in _____; and connective, which is in _____. the skin; cartilage; the brain; the heartcartilage; the skin; the heart; the brainthe brain; the heart; ... (More)