![CHAPTER 33](http://s1.studyres.com/store/data/014292113_1-0e81a7eec2a97f940b5338c11e91b12e-300x300.png)
CHAPTER 33
... ° The morphology of these fossils resembles the female form. ° DNA comparisons of bdelloids with their closest sexually reproducing rotifer relatives suggest that bdelloids have been asexual for far more than 35 million years. ...
... ° The morphology of these fossils resembles the female form. ° DNA comparisons of bdelloids with their closest sexually reproducing rotifer relatives suggest that bdelloids have been asexual for far more than 35 million years. ...
Topic 11b: Lophotrochozoans (Ch. 33)
... join in opposite directions at the clitellum (obvious thickened band), which secretes mucus that holds the pair together during copulation exchange sperm, and then each lays eggs in mucous cocoon surrounded by chitin that is secreted by the clitellum (this cocoon protects the fertilized eggs) L. ...
... join in opposite directions at the clitellum (obvious thickened band), which secretes mucus that holds the pair together during copulation exchange sperm, and then each lays eggs in mucous cocoon surrounded by chitin that is secreted by the clitellum (this cocoon protects the fertilized eggs) L. ...
Chapter Fifteen: Invertebrates Teacher Notes Lesson One: Simple
... -Spiders, scorpions, mites, and ticks -two main body parts-cephalothorax (head and thorax) and abdomen -most have four pairs of legs, no antennae, clawlike mouthparts called chelicerae, and simple eyes (they have eight) -spiders are more helpful than harmful-kill more insects than any other animal - ...
... -Spiders, scorpions, mites, and ticks -two main body parts-cephalothorax (head and thorax) and abdomen -most have four pairs of legs, no antennae, clawlike mouthparts called chelicerae, and simple eyes (they have eight) -spiders are more helpful than harmful-kill more insects than any other animal - ...
3rd. practical lesson in zoology Arthropoda
... (skin disease of mammals including humans) • small enough to breathe through skin ...
... (skin disease of mammals including humans) • small enough to breathe through skin ...
Class Reptiles
... ones, and the old ones pile up – count the # of scutes in the pile to tell age • no teeth - have hard, flat surfaces on jaws to grip and tear bits of plants or animals – look much like the hook on the end of a hawk's or eagle's beak ...
... ones, and the old ones pile up – count the # of scutes in the pile to tell age • no teeth - have hard, flat surfaces on jaws to grip and tear bits of plants or animals – look much like the hook on the end of a hawk's or eagle's beak ...
Mollusks, Worms, Arthropods, Echinoderms
... – Largest group of animals – Have jointed appendages which include legs, antennae, claws, wings, and pincers – Have bilateral symmetry, segmented bodies, exoskeletons, a body cavity, a digestive system with two openings and a nervous system – Most have separate sexes and reproduce sexually ...
... – Largest group of animals – Have jointed appendages which include legs, antennae, claws, wings, and pincers – Have bilateral symmetry, segmented bodies, exoskeletons, a body cavity, a digestive system with two openings and a nervous system – Most have separate sexes and reproduce sexually ...
Chapter 19 - Arthropods 1
... • They are eucoelomate protostomes with welldeveloped organ systems. • Similar to annelids, they have distinct metameres • Sizes range from the Japanese crab (four meters in leg span) to the 0.1 mm long follicle mite. • Their abundance and wide ecological distribution makes them the most ...
... • They are eucoelomate protostomes with welldeveloped organ systems. • Similar to annelids, they have distinct metameres • Sizes range from the Japanese crab (four meters in leg span) to the 0.1 mm long follicle mite. • Their abundance and wide ecological distribution makes them the most ...
Arthropods
... Feeding and Digestion Filter feeding common on copepods and small crustaceans. Stiff, hair-like bristles are used to catch food particles in the water. Appendages used to pierce and suck in parasitic copepods and isopods. Food passes to a stomach with chitinous teeth for grinding and siftin ...
... Feeding and Digestion Filter feeding common on copepods and small crustaceans. Stiff, hair-like bristles are used to catch food particles in the water. Appendages used to pierce and suck in parasitic copepods and isopods. Food passes to a stomach with chitinous teeth for grinding and siftin ...
Incomplete outline Mollusks and Annelids
... 1mm to 3m (10 ft) Segmented – ring like structures along length of their body ________ – internal body walls separate the segments Anterior has cerebral ganglion, nerve cord underside (___________ body Coelom- large, fluid-filled, entirely in mesoderm Closed circulatory Respire through skin ________ ...
... 1mm to 3m (10 ft) Segmented – ring like structures along length of their body ________ – internal body walls separate the segments Anterior has cerebral ganglion, nerve cord underside (___________ body Coelom- large, fluid-filled, entirely in mesoderm Closed circulatory Respire through skin ________ ...
The Insect Circulatory and Respiratory Systems
... circulatory system is not part of the insect circulatory system? • Hint: Think about why insect blood is usually clear… ...
... circulatory system is not part of the insect circulatory system? • Hint: Think about why insect blood is usually clear… ...
The Insect Circulatory and Respiratory Systems
... circulatory system is not part of the insect circulatory system? • Hint: Think about why insect blood is usually clear… ...
... circulatory system is not part of the insect circulatory system? • Hint: Think about why insect blood is usually clear… ...
File
... oxygen and carbon dioxide between the egg and the outside environment. • entire amniote egg is surrounded by a leathery shell that may be hard in some species because of the presence of calcium carbonate. • The egg is water proof • male places the sperm inside the female before the shell is formed. ...
... oxygen and carbon dioxide between the egg and the outside environment. • entire amniote egg is surrounded by a leathery shell that may be hard in some species because of the presence of calcium carbonate. • The egg is water proof • male places the sperm inside the female before the shell is formed. ...
ANIMAL DIVERSITY
... • One pair of appendages near the mouth is common to this subphylum – The ___________________________ • 4 pairs of walking legs, no antennae – Simple unbranched appendages ...
... • One pair of appendages near the mouth is common to this subphylum – The ___________________________ • 4 pairs of walking legs, no antennae – Simple unbranched appendages ...
subphylum chelicerata 2 ppt
... Sensitive to ground vibrations Suspected chemosensory role in spermatophore deposition Ablation of pectines results in failure of male to deposit spermatophore ...
... Sensitive to ground vibrations Suspected chemosensory role in spermatophore deposition Ablation of pectines results in failure of male to deposit spermatophore ...
Subphylum Chelicerata
... Sensitive to ground vibrations Suspected chemosensory role in spermatophore deposition Ablation of pectines results in failure of male to deposit spermatophore ...
... Sensitive to ground vibrations Suspected chemosensory role in spermatophore deposition Ablation of pectines results in failure of male to deposit spermatophore ...
Amphioxus Reading
... to be a cephalochordate, the earliest known (Chen et al., 1995). These fossils show that the chordate lineage appeared very early in the known history of the animal kingdom, and they strengthen the case for an origin of true vertebrates from a cephalochordate-like ancestor. Today, amphioxus may be e ...
... to be a cephalochordate, the earliest known (Chen et al., 1995). These fossils show that the chordate lineage appeared very early in the known history of the animal kingdom, and they strengthen the case for an origin of true vertebrates from a cephalochordate-like ancestor. Today, amphioxus may be e ...
102. animals 103. daphnia 104. hydra 105. planaria
... - Its skin is always moist, able to regenerate - reproduction = sexual: eggs must be fertilized by the sperm of another worm, lays a batch of eggs at one time - waste helps fertilize the soil ...
... - Its skin is always moist, able to regenerate - reproduction = sexual: eggs must be fertilized by the sperm of another worm, lays a batch of eggs at one time - waste helps fertilize the soil ...
Emergence of Arthropods
... Twirling antennae Direct manipulation Sand grazers or Sand lickers Predators Parasitism ...
... Twirling antennae Direct manipulation Sand grazers or Sand lickers Predators Parasitism ...
40 LAB # 8. THE ARTHROPODA 1. Overview
... furrow, where the gonopores are located. In females, the openings to the seminal receptacles are found here (for sperm storage after mating). Lateral to the pores are the opening to the book lungs. Lastly, note the obvious spinnerets that lead to the internal silk glands. Order Acarina (mites and ti ...
... furrow, where the gonopores are located. In females, the openings to the seminal receptacles are found here (for sperm storage after mating). Lateral to the pores are the opening to the book lungs. Lastly, note the obvious spinnerets that lead to the internal silk glands. Order Acarina (mites and ti ...
Arthropods - Southington Public Schools
... Are considered living fossils because they have not changed (evolutionarily) in 500 million years, which is before dinosaurs were around. Centipedes and Millipedes Centipedes have 15-181 segments, depending on the species. Centipedes have one pair of legs per segment. Centipedes have poison ...
... Are considered living fossils because they have not changed (evolutionarily) in 500 million years, which is before dinosaurs were around. Centipedes and Millipedes Centipedes have 15-181 segments, depending on the species. Centipedes have one pair of legs per segment. Centipedes have poison ...
Arthropods have exoskeletons and joints.
... adaptations in color and shape that allow them to blend into their environments. For example, a stick insect is the same color and shape as a twig. Insect bodies also have different adaptations. Many insects have compound eyes and antennae, which are sensory organs. Many insects fly, having one or t ...
... adaptations in color and shape that allow them to blend into their environments. For example, a stick insect is the same color and shape as a twig. Insect bodies also have different adaptations. Many insects have compound eyes and antennae, which are sensory organs. Many insects fly, having one or t ...
Arthropods! - Tanque Verde Unified District
... • Metamorphosis—change in body shape from egg to adult, controlled by series of chemical changes in animal – EggLarvaPupaAdult – If insect goes through all four stages: complete – If insect goes through some stages: incomplete (nymph stage) – Complete metamorphosis advantageous for arthropods bec ...
... • Metamorphosis—change in body shape from egg to adult, controlled by series of chemical changes in animal – EggLarvaPupaAdult – If insect goes through all four stages: complete – If insect goes through some stages: incomplete (nymph stage) – Complete metamorphosis advantageous for arthropods bec ...
Document
... 4. Uniramia: Animals such as insects, millipedes, and centipedes. Insects are by far the biggest class of arthropods!!! ...
... 4. Uniramia: Animals such as insects, millipedes, and centipedes. Insects are by far the biggest class of arthropods!!! ...
Horse-fly
![](https://en.wikipedia.org/wiki/Special:FilePath/Horse_fly_Tabanus_2.jpg?width=300)
Horse-flies (for other names, see common names) are true flies in the family Tabanidae in the insect order Diptera. They are often large and agile in flight, and the females bite animals, including humans, in order to obtain blood. They prefer to fly in sunlight, avoiding dark and shady areas, and are inactive at night. They are found all over the world except for some islands and the polar regions.Adult horse-flies feed on nectar and plant exudates; the males have weak mouthparts and only the females bite animals to obtain enough protein from blood to produce eggs. The mouthparts of females are formed into a stout stabbing organ with two pairs of sharp cutting blades, and a spongelike part used to lap up the blood that flows from the wound. The larvae are predaceous and grow in semiaquatic habitats.Female horse-flies can transfer blood-borne diseases from one animal to another through their feeding habit. In areas where diseases occur, they have been known to carry equine infectious anaemia virus, some trypanosomes, the filarial worm Loa loa, anthrax among cattle and sheep, and tularemia. As well as making life outdoors uncomfortable for humans, they can reduce growth rates in cattle and lower the milk output of cows if suitable shelters are not provided.Horse-flies have appeared in literature since Aeschylus in Ancient Greece mentioned them driving people to madness through their persistent pursuit. Shakespeare uses the theme of the maddening gadfly in his plays King Lear and Antony and Cleopatra.