Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Biology 20 – Kingdom Animalia – Phylum Arthropoda Notes Phylum Arthropoda (pg. 706) Characteristics of Arthropods Segmented bodies divided into 3 regions _____________________ In some arthropods, the head and thorax is fused into a __________ ______________ that are always found ______________. Exoskeleton is made of _______________. Because the exoskeleton does not grow, young arthropods must periodically _____________________ its exoskeleton in a process called ____________________. Complex _________________________________________ Nervous system – ______________________________________. Adapted for land, water, and air Well developed _________________________________________ Dorsal ________________ & ______________ circulatory system Terrestrial arthropods have holes in their exoskeleton to allow for ______________. These holes are called ____________________ Class Crustacea Characteristics All are marine or aquatic. (How do they breathe?) _____________. Have 2 body segments; A _________________________________ ______________________ and an ___________________. Possess 2 pair of __________________. Functions include sensory, locomotion or feeding. All have a thick ______________________ which they molt. There are usually 5 pairs of ___________________ strengthened for walking (___________________) and protection (___________ pincer-like claws) Groups with a well-developed abdomen usually possess six pairs of appendages: Five pairs of structures called ___________________ (_______________); one pair of structures called ______________ Uropods together with the terminal _________________ form a tail fan than can serve as rudders during locomotion Helpful Many are ________________________ Vital link in the food chain 1 Biology 20 – Kingdom Animalia – Phylum Arthropoda Notes Daphnia are used in research and drug testing Harmful Some barnacles are ______________________ Eg.____________________________________________________ Class Chilopoda Serial segmented, flattened body and each segment has a pair of jointed appendages Active predators, killing their prey with _______________, which are modified ___________________________ on first segment The head has 1 pair of ________________ and various mouthparts What kind of arthropod is this? Eg._________________________. Helpful Common household ____________________ are harmless to homes. They eat many household pests such as bed bugs, weevils and cockroaches Harmful Poisonous bites Class Arachnida General Characteristics • Have 2 body segments; A ______________ and an ____________ which are joined by a narrow _____________________. • Respiration is accomplished via ______________, tracheae, or both • Usually have 8 simple eyes; at the very least they detect ________; for some of the predatory forms, they are capable of forming crude images. • Many of the spiders and mites are capable of producing ________; produced by silk glands that open to the exterior part of the abdomen through _____________________________. • Most spiders are predaceous and have lots of _________________. • Many species have evolved poison glands associated with the ___________________ (mouthparts) or ____________ on the tail. Helpful: • Spiders eat insects, pets, spider venom used as medicine. Harmful: 2 Biology 20 – Kingdom Animalia – Phylum Arthropoda Notes • Lyme disease & Rocky Mountain Spotted Fever (ticks), some spiders are deadly poisonous. Class Diplopoda Thousand – leggers: Eg._________________________ More than 300 pairs of legs. Distinct wormlike body with many segments. 2 pairs of legs on every segment Helpful: ______________________________________________. Harmful: ______________________________________________. Class Insecta General Characteristics 3 tagmata or body regions: _______________________________. ________________________________ with great variety of types: running, raptorial, digging, swimming, etc. Most insects have _______________________________. Compound and simple eyes Highly variable ________________________: chewing, piercingsucking, lapping, etc. Respiration accomplished by ______________________________. Most have a ______________________ exoskeleton except beetles which have a thick exoskeleton. Insect have only ______________________ of antennae. Divided into Orders by: _______________________________ _______________________________ _______________________________ _______________________________ _______________________________ Reproduction All fertilization is _______________________________. Young develop in one of 2 ways. Complete Metamorphosis Insects such as moths, butterflies, bees, flies, beetles and ants. Eggs hatch into _____________________. After several molts it passes into a resting stage called a ________________________. 3 Biology 20 – Kingdom Animalia – Phylum Arthropoda Notes During this stage the tissues reorganize into the adult stage. The 4 stages are ________________________________________. Incomplete Metamorphosis Egg hatches into a __________________ which is a small version of the adult with no wings. The nymph is not able to ________________________. The nymph goes through several molts until it reaches adult size. The final molt is when the wings and reproductive organs develop. 3 stages of development: _________________________________. How Are Insects Important? Beneficial ___________________________________ Chemical products: __________________________________ Fish bait: crickets, “spikes”, etc. also models for artificial lures – “match the hatch” Predators & parasitoids ___________________________ (including human carrion) Use of insects in ______________________ Occupy lower trophic levels in aquatic and terrestrial food chains _________________________________ (Drosophila) Herbivores of undesirable plants Biological indicators of aquatic pollution Harmful: Attack cultivated plants as a source of food Attack stored food products Pests of wood Pests of fabrics and clothing: clothes moth and dermestid beetles Vector of plant pathogens such as viruses, fungi. Attack humans and domestic animals: annoyance, venomous, parasitic, disease transmission Eg._______________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ 4