Summary A Chapter 30
... evolve. The evolution of jaws and paired fins were the most important development in fish evolution. Jaws improved defense and expanded food choices. Paired fins gave more control of body movement. Fishes have various modes of feeding. Fishes are herbivores, carnivores, parasites, filter feeders, an ...
... evolve. The evolution of jaws and paired fins were the most important development in fish evolution. Jaws improved defense and expanded food choices. Paired fins gave more control of body movement. Fishes have various modes of feeding. Fishes are herbivores, carnivores, parasites, filter feeders, an ...
Organ systems of the worm HW 11/25
... Earthworms need damp soil to keep their skin moist. Earthworms are simple creatures that pack a powerful environmental punch. They live in moist soil, digging tunnels that aerate the soil for plants and processing vegetation through their digestive systems to turn it into nutrients for the plant roo ...
... Earthworms need damp soil to keep their skin moist. Earthworms are simple creatures that pack a powerful environmental punch. They live in moist soil, digging tunnels that aerate the soil for plants and processing vegetation through their digestive systems to turn it into nutrients for the plant roo ...
Phylum: Molluska
... This class contains the squids, octopuses and cuttlefish. Orientation of the body differs from most mollusks in that the ventral region (belly-side) is now anterior (up front) and the visceral mass is now the functional posterior (in back) end of the animal. This change in orientation has implicatio ...
... This class contains the squids, octopuses and cuttlefish. Orientation of the body differs from most mollusks in that the ventral region (belly-side) is now anterior (up front) and the visceral mass is now the functional posterior (in back) end of the animal. This change in orientation has implicatio ...
Unit IV Insects Aquatic Insects
... very little about them. These adaptable creatures are one of the most successful groups of organisms on earth representing more than 75% of all animals. They have been able to inhabit a wide range of places from the driest deserts to the highest mountaintops. ...
... very little about them. These adaptable creatures are one of the most successful groups of organisms on earth representing more than 75% of all animals. They have been able to inhabit a wide range of places from the driest deserts to the highest mountaintops. ...
Chapter 27: Mollusks and Annelids
... Annelids produce two kinds of wastes o __________________________________ pass out through the anus at the end of the gut o Wastes resulting from cellular metabolism are eliminated by ...
... Annelids produce two kinds of wastes o __________________________________ pass out through the anus at the end of the gut o Wastes resulting from cellular metabolism are eliminated by ...
13-Lower Chordates
... ■ Most had heavy armor of dermal bone on the outside of their bodies. ■ The earliest Paleozoic fossils of jawless ostracoderms! ...
... ■ Most had heavy armor of dermal bone on the outside of their bodies. ■ The earliest Paleozoic fossils of jawless ostracoderms! ...
Herpetology – the study of amphibians and reptiles • Both are very
... – Lungs – A primitive neck • Fish-like ancestors probably evolved these traits in shallow swamps with stagnant water ...
... – Lungs – A primitive neck • Fish-like ancestors probably evolved these traits in shallow swamps with stagnant water ...
Chapter 28: Arthropods
... Have a nerve cord with several other pairs of ganglia o Serve as local command centers to coordinate the movement of ____________________________________ ...
... Have a nerve cord with several other pairs of ganglia o Serve as local command centers to coordinate the movement of ____________________________________ ...
Ch 26 Arthropod Notes
... • The exoskeleton protects and supports internal tissues and provides places for attachment of muscles. • In many aquatic species, the exoskeletons are reinforced with calcium carbonate. ...
... • The exoskeleton protects and supports internal tissues and provides places for attachment of muscles. • In many aquatic species, the exoskeletons are reinforced with calcium carbonate. ...
File - Down the Rabbit Hole
... Hydra will periodically develop lumps on the sides of their bodies that are either testes or ovaries. These make and release sperm or eggs, which then join to form a zygote, which eventually grows into a new hydra. ...
... Hydra will periodically develop lumps on the sides of their bodies that are either testes or ovaries. These make and release sperm or eggs, which then join to form a zygote, which eventually grows into a new hydra. ...
Earthworm Dissection Lab Instructions
... 5. Turn the worm dorsal side up. Using a scalpel and scissors, make a shallow incision in the dorsal side of the clitellum at segment 33. CAUTION: Scalpels and scissors are very sharp. Only touch sharp end of scalpels on worm. Report any cuts to your teacher. Using the forceps and scalpel, spread t ...
... 5. Turn the worm dorsal side up. Using a scalpel and scissors, make a shallow incision in the dorsal side of the clitellum at segment 33. CAUTION: Scalpels and scissors are very sharp. Only touch sharp end of scalpels on worm. Report any cuts to your teacher. Using the forceps and scalpel, spread t ...
Complete and Incomplete Metamorphosis
... development of a dragonfly. (Note the nymph is similar to the adult, but lacks wings.) ...
... development of a dragonfly. (Note the nymph is similar to the adult, but lacks wings.) ...
ZLY 103 Phylum Annelida
... coelomates. • They are externally marked by circular rings called annuli (the name of the phylum refers to this characteristic). • Annelids are sometimes called “bristle worms” because, (except leeches), most annelids bear tiny chitinous bristles called setae. • Short needlelike setae help anchor se ...
... coelomates. • They are externally marked by circular rings called annuli (the name of the phylum refers to this characteristic). • Annelids are sometimes called “bristle worms” because, (except leeches), most annelids bear tiny chitinous bristles called setae. • Short needlelike setae help anchor se ...
Development of blood pressure and cardiac reflexes in the frog
... pressurehad been recorded for several minutes, a 5-cm square block of 2-cm-thick Styrofoam was gently placed on the water surface directly above the animal. Even though this initiated a “forced” dive, in fact larvae very rarely struggled,rather remaining motionless while submerged.After 3-10 min, th ...
... pressurehad been recorded for several minutes, a 5-cm square block of 2-cm-thick Styrofoam was gently placed on the water surface directly above the animal. Even though this initiated a “forced” dive, in fact larvae very rarely struggled,rather remaining motionless while submerged.After 3-10 min, th ...
Dissection: The Earthworm - f
... Examine the external features of the earthworm. Note the segmented body of the earthworm. The anterior end can be recognized by noting the location of the clitellum. This is a lighter colored, swollen region that covers several segments near the anterior end of the worm. During reproduction, the cli ...
... Examine the external features of the earthworm. Note the segmented body of the earthworm. The anterior end can be recognized by noting the location of the clitellum. This is a lighter colored, swollen region that covers several segments near the anterior end of the worm. During reproduction, the cli ...
The Life History of North American Butterflies
... rotting fruit, dung, fungi, decaying animals, and dissolved minerals in wet sand or dirt. Butterflies are important as pollinators for some species of plants. In general, they do not carry as much pollen as bees, but they are capable of moving pollen over greater distances. ...
... rotting fruit, dung, fungi, decaying animals, and dissolved minerals in wet sand or dirt. Butterflies are important as pollinators for some species of plants. In general, they do not carry as much pollen as bees, but they are capable of moving pollen over greater distances. ...
Chapter 7
... – Females larger than males – Mating pairs come onto beaches each spring to breed and lay their eggs in wet sand – Among the oldest creatures on earth – they have remained virtually unchanged for millions of years – They live and borrow in soft sediments, normally near shore where they feed on other ...
... – Females larger than males – Mating pairs come onto beaches each spring to breed and lay their eggs in wet sand – Among the oldest creatures on earth – they have remained virtually unchanged for millions of years – They live and borrow in soft sediments, normally near shore where they feed on other ...
Arthropods PPT - Effingham County Schools
... – Can’t chew their food, release enzymes into prey to digest it—then suck the predigest liquid into its mouth. – Have book lungs where O2 and CO2 are exchanged. ...
... – Can’t chew their food, release enzymes into prey to digest it—then suck the predigest liquid into its mouth. – Have book lungs where O2 and CO2 are exchanged. ...
CHAPTER 46: ARTHROPODS
... divided according to the structure of appendages. The chelicerates possess chelicerae, fangs, or pincers evolved from the most anterior pair of appendages. The most anterior appendages of the mandibulates are antennae, the next set of appendages are the mandibles. The terrestrial mandibulates, have ...
... divided according to the structure of appendages. The chelicerates possess chelicerae, fangs, or pincers evolved from the most anterior pair of appendages. The most anterior appendages of the mandibulates are antennae, the next set of appendages are the mandibles. The terrestrial mandibulates, have ...
Phylum Arthropoda - Los Angeles Center for Enriched Studies
... • Body is usually composed of two regions: cephalothorax (prosoma) and abdomen • Cephalothorax is usually covered dorsally by the carapace • Six pairs of appendages: first pair are modified feeding structures chelicerae • Second pair are called pedipalps • Four additional pairs of appendages are wal ...
... • Body is usually composed of two regions: cephalothorax (prosoma) and abdomen • Cephalothorax is usually covered dorsally by the carapace • Six pairs of appendages: first pair are modified feeding structures chelicerae • Second pair are called pedipalps • Four additional pairs of appendages are wal ...
Dryinidae (Hymenoptera Chrysidoidea): an interesting group among
... robust and mobile chelae) (Figs 1-6). Regarding the 5 subfamilies known to have relationships with Auchenorrhyncha, the Aphelopinae females are the most plesiomorphic Dryinids; on the contrary Dryininae and especially Gonatopodinae females the most evolved. The modest male selection explains also wh ...
... robust and mobile chelae) (Figs 1-6). Regarding the 5 subfamilies known to have relationships with Auchenorrhyncha, the Aphelopinae females are the most plesiomorphic Dryinids; on the contrary Dryininae and especially Gonatopodinae females the most evolved. The modest male selection explains also wh ...
chapter 34 - Biology Junction
... Cambrian fossils provide clues to craniate origins. Several recent fossil finds in China of early chordates have provided information about the origin of craniates. They appear to be “missing links” that straddle the transition to craniates. The most primitive of these fossils is a 3-cm-long a ...
... Cambrian fossils provide clues to craniate origins. Several recent fossil finds in China of early chordates have provided information about the origin of craniates. They appear to be “missing links” that straddle the transition to craniates. The most primitive of these fossils is a 3-cm-long a ...
HS-SCI-APB-Unit 5 -- Chapter 33- Invertebrates
... The body of a sponge consists of two layers of cells separated by a gelatinous region called the mesohyl. Wandering through the mesohyl are cells called amoebocytes, named for their use of pseudopodia. Amoebocytes have many functions. They take up food from the water and from choanocytes, digest it, ...
... The body of a sponge consists of two layers of cells separated by a gelatinous region called the mesohyl. Wandering through the mesohyl are cells called amoebocytes, named for their use of pseudopodia. Amoebocytes have many functions. They take up food from the water and from choanocytes, digest it, ...
Horse-fly
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.