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Biology
Bio. Chapter 17
| Question | Answer |
|---|---|
| The three categories of arthropods are chelicerates, crustaceans, and ________. | Insects |
| Arthropods have a _____ body. | Segmented |
| Arthropods have _____ appendages. | Jointed |
| Arthropods have _____ eyes. | Compound |
| Arthropods have an _____ circulatory system. | Open |
| The periodic shedding of an exoskeleton, scales, feathers, or fur | Molting |
| The claws on the first three pairs of crustacean walking legs | Chelipeds |
| Arthropods have a nervous system that includes a pair of _____ joined by two major nerves that function like a brain | Ganglia |
| All chelicerates have _____ mouthparts. | Pincerlike |
| An elongated, movable sensory appendage on the head of many invertebrates | Antenna |
| One of the second pair of arachnid appendages used for sensory perception and sperm transfer | Pedipalp |
| The platelike respiratory structure found in arachnids | Book Lung |
| In food webs, chelicerates can be: Predators, Prey, or Both | Both |
| An organ in spiders and some insects that produces a filament made from secretions produced in silk glands | Spinneret |
| The portion of the exoskeleton that covers the cephalothorax in some arthropods | Carapace |
| Insects have _____ body segments. | Three |
| One of the small appendages on some crustaceans that is used for swimming and reproduction | Swimmeret |
| Crustaceans have ______ that branch into two parts. | Appendages |
| Insects have specialized mouthparts that help them eat prey called _______ mouths | Siphoning and Piercing |
| Crustaceans have _____ pairs of walking legs. | Five |
| Insects have _____ circulatory systems. | Open |
| True or False: Some crustaceans will have wings. | False |
| A crustacean’s walking leg bearing a small claw at its end | Cheliped |
| A chewing mouthpart found in insects and some other arthropods | Mandible |
| True or False: Arthropoda is the largest phylum within kingdom Animalia. | True |
| Chemicals insects used to find mates | Pheromones |
| Insects have ____ pair of antennae. | One |
| Threadlike structure that extracts wastes from the blood and empties them into the intestines is the Malphighian ____ | Tubule |
| Have exoskeletons made of chitin | All Arthropods |
| Have swimmerets | Crustaceans |
| Have wings | Insects |
| Have no antennae | Chelicerates |
| One of the chitinous tubules in insects that transfer air directly to its tissues | Trachea |
| One of the small pores in an insect’s body that opens into the tracheae | Spiracle |
| A change in shape or form that an animal undergoes in its development from egg to adult | Metamorphosis |
| The process in which an insect hatches from an egg to form a nymph, which matures into an adult is _____ metamorphosis | Incomplete |
| process in which an insect hatches from an egg to form a larva, then a pupa, and then an adult is _____ metamorphosis | Complete |
| Insects have ____ pair of compound eyes. | One |
| Crustaceans reproduce _______. | Sexually |
| Identify the stages of complete metamorphosis. | Egg, Larva, Pupa, and Adult |
| Explain how arthropods compare to other animal phyla in terms of number of species. | Arthropods significantly outnumber other animal phyla because they consist of many more groups of species than other animal phyla. |
| Explain how horseshoe crab blood is used to help people. | It is used to help people fight off bacteria and infections because it has antibacterial properties in it. |
| List things crustaceans use their chelipeds for. | They use them to fend off predators, spar with crustaceans, capture prey, and groom themselves. |
| Explain how krill serve as ecosystem engineers. | They eat detritus off the ocean floor, they are scavenging crustaceans, and they act as food for other marine organisms. These are all proof that they are ecosystem engineers. |
| Explain whether or not the presence or absence of wings can be used to conclusively identify an organism as an insect. | No, it can not be used because some organisms are insects and have wings or do not have wings and some organisms are not insects and also have wings or do not have wings. |
| Explain an instance in which insects can negatively impact humans. | They might carry disease and when they, like a misquito or tick, land on a human that disease can trasnfer to the human, and they can also destroy crops by eating them. |
| Describe an example of a chelicerate that has a detrimental effect on humans and one that benefits humans. | Ticks bring diseases like lime disease that will harm humans, but horseshoe crabs blood can be used medically to help humans. |
| Compare and contrast incomplete and complete metamorphosis. | Complete metamorphosis is when insects start as an egg to form larva, then pupa, and finally an adult, while incomplete metamorphosis is when an insect hatches from an egg to form a nymph and then form a adult. They are both stages of growth for insects. |
Created by:
LayneIS