Ch. 34
... into a tube dorsal to the notochord. ○ Other animal phyla have solid nerve cords, usually located ventrally. ○ The nerve cord of the chordate embryo develops into the central nervous system: the brain and spinal cord. 3. The digestive tube of chordates extends from the mouth to the anus. ○ The regio ...
... into a tube dorsal to the notochord. ○ Other animal phyla have solid nerve cords, usually located ventrally. ○ The nerve cord of the chordate embryo develops into the central nervous system: the brain and spinal cord. 3. The digestive tube of chordates extends from the mouth to the anus. ○ The regio ...
31 - Westgate Mennonite Collegiate
... iv. Water passes into mouth and out through gill slits: oxygen is absorbs and carbon dioxide given off v. Heart is simple pump with two chambers (one atrium and one ventricle) ...
... iv. Water passes into mouth and out through gill slits: oxygen is absorbs and carbon dioxide given off v. Heart is simple pump with two chambers (one atrium and one ventricle) ...
Chapter 23
... Impacts, Issues: Interpreting and Misinterpreting the Past A.The absence of transitional forms was an early obstacle to Darwin’s theory of evolution. 1. The discovery of Archaeopteryx specimens, which display both reptilian and bird features, was significant. 2. Archaeopteryx lived about 150 millio ...
... Impacts, Issues: Interpreting and Misinterpreting the Past A.The absence of transitional forms was an early obstacle to Darwin’s theory of evolution. 1. The discovery of Archaeopteryx specimens, which display both reptilian and bird features, was significant. 2. Archaeopteryx lived about 150 millio ...
Chapter 36: Comparing Vertebrates
... Vertebrates perform the essential functions of life with a variety of body structures Evolutionary processes have modified certain ...
... Vertebrates perform the essential functions of life with a variety of body structures Evolutionary processes have modified certain ...
Living In Water
... allow for life in water. The most common adaptation is large air spaces or channels running through the leaves, stems, and roots. These air channels allow an exchange of gases between the parts of the plant that remain submerged in water, such as the root, and the parts that reach above the water’ ...
... allow for life in water. The most common adaptation is large air spaces or channels running through the leaves, stems, and roots. These air channels allow an exchange of gases between the parts of the plant that remain submerged in water, such as the root, and the parts that reach above the water’ ...
Chapter Outline
... 3. Their S-shaped locomotion is similar to fish movements. 4. Salamanders and newts are carnivorous, feeding on insects, snails, etc. 5. Salamanders practice internal fertilization; the males produce a spermatophore that females pick up with the cloaca (the common receptacle for the urinary, genital ...
... 3. Their S-shaped locomotion is similar to fish movements. 4. Salamanders and newts are carnivorous, feeding on insects, snails, etc. 5. Salamanders practice internal fertilization; the males produce a spermatophore that females pick up with the cloaca (the common receptacle for the urinary, genital ...
Major Characteristics
... Oviparous-animals that lay eggs, with little or no other embryonic development within the mother. Like chickens. Ovoviviparous-animals develop within eggs that remain within the mother's body up until they hatch or are about to hatch. Like fish. ...
... Oviparous-animals that lay eggs, with little or no other embryonic development within the mother. Like chickens. Ovoviviparous-animals develop within eggs that remain within the mother's body up until they hatch or are about to hatch. Like fish. ...
Mader/Biology, 11/e – Chapter Outline
... 12. Electric rays feed on fish that have been stunned with an electric shock that may reach over 300 volts. 13. Sawfish rays have a large anterior “saw” that they use to slash through schools of fish. 14. Chimaeras (ratfishes) live in cold marine waters and are known for their unusual shape and irid ...
... 12. Electric rays feed on fish that have been stunned with an electric shock that may reach over 300 volts. 13. Sawfish rays have a large anterior “saw” that they use to slash through schools of fish. 14. Chimaeras (ratfishes) live in cold marine waters and are known for their unusual shape and irid ...
Conor Porifera Quiz
... a. show how important crustaceans are in the aquatic food webs b. are never seen during daylight c. feed on seaweed and other aquatic plants d. cannot swim but draft instead 4. Crustaceans were once classified as molluscs because a. they live in a marine environment b. they secret a hard outer shell ...
... a. show how important crustaceans are in the aquatic food webs b. are never seen during daylight c. feed on seaweed and other aquatic plants d. cannot swim but draft instead 4. Crustaceans were once classified as molluscs because a. they live in a marine environment b. they secret a hard outer shell ...
Chapter 26
... bore through the intestinal wall. They move to the heart, the lungs, and finally out the breathing passages where they are swallowed, thus perpetuating the cycle. Females lay hundreds of thousands of eggs each day and can reach nearly 30 centimeters in length (Raven et al. 746). ...
... bore through the intestinal wall. They move to the heart, the lungs, and finally out the breathing passages where they are swallowed, thus perpetuating the cycle. Females lay hundreds of thousands of eggs each day and can reach nearly 30 centimeters in length (Raven et al. 746). ...
Ch 34
... f) Mammalia 3) the last 4 are tetrapods= animals possessing two pairs of limbs that support it on land. 4) other adaptations for a terrestrial lifestyle not found in amphibians are amniotic egg (a shelled, water resistant egg) allows completion on fhte life cycle on land. most mamals do not lay ...
... f) Mammalia 3) the last 4 are tetrapods= animals possessing two pairs of limbs that support it on land. 4) other adaptations for a terrestrial lifestyle not found in amphibians are amniotic egg (a shelled, water resistant egg) allows completion on fhte life cycle on land. most mamals do not lay ...
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 ...
Lecture III
... 2. Large Neanderthal cranial capacity confusing – suggested that human brain had been larger in the past. 3. Only with discovery of Australopithecus, was it accepted that human ancestors bipedal, but small-brained. 4. Early reconstructions of hominid evolution suggested linear progress (orthogenesis ...
... 2. Large Neanderthal cranial capacity confusing – suggested that human brain had been larger in the past. 3. Only with discovery of Australopithecus, was it accepted that human ancestors bipedal, but small-brained. 4. Early reconstructions of hominid evolution suggested linear progress (orthogenesis ...
What do we all have in common? A bivalve dissection!
... What do we all have in common? A bivalve dissection! I. External Observations: 1. List two qualitative observations about your bivalve specimen: Various answers: black, smooth shell, funny strings coming out of one side, smells like fish etc 2. List two quantitative observations about your bivalve s ...
... What do we all have in common? A bivalve dissection! I. External Observations: 1. List two qualitative observations about your bivalve specimen: Various answers: black, smooth shell, funny strings coming out of one side, smells like fish etc 2. List two quantitative observations about your bivalve s ...
The Evolution of Flight Entognatha and the Paleoptera
... iii thin and pale cuticle iv generally very small c. However some workers believe that these characters arose independently and represent convergent evolution as an outcome of living in leaf litter and soil. These workers conclude that the Entognatha are a polyphyletic group and they elevate each or ...
... iii thin and pale cuticle iv generally very small c. However some workers believe that these characters arose independently and represent convergent evolution as an outcome of living in leaf litter and soil. These workers conclude that the Entognatha are a polyphyletic group and they elevate each or ...
Human Locomotion and Heat Loss: An Evolutionary Perspective
... are problematic because these fossils actually resemble chimpanzees and gorillas in most aspects for which they are unlike later hominins (91, 186). In addition, while Miocene apes are diverse, most of these species are unlikely to be closely related to the LCA of humans and chimps, which means that ...
... are problematic because these fossils actually resemble chimpanzees and gorillas in most aspects for which they are unlike later hominins (91, 186). In addition, while Miocene apes are diverse, most of these species are unlikely to be closely related to the LCA of humans and chimps, which means that ...
m5zn_72f62a9797e3098
... All mammals except monotremes have embryos that develop in the uterus of the female reproductive tract. Group marsupials: embryos are only in the uterus for a short time and are then born at immature stage of development. After birth, they crawl to a nipple, firmly grasp it, and complete their d ...
... All mammals except monotremes have embryos that develop in the uterus of the female reproductive tract. Group marsupials: embryos are only in the uterus for a short time and are then born at immature stage of development. After birth, they crawl to a nipple, firmly grasp it, and complete their d ...
Amphibians
... • Some are aquatic throughout their life cycle; most have aquatic larvae and terrestrial adults. • Most salamanders fertilize eggs internally. • The female picks up a spermatophore that has been deposited on a leaf or stick. • Aquatic species lay eggs in clusters or stringy masses. • ...
... • Some are aquatic throughout their life cycle; most have aquatic larvae and terrestrial adults. • Most salamanders fertilize eggs internally. • The female picks up a spermatophore that has been deposited on a leaf or stick. • Aquatic species lay eggs in clusters or stringy masses. • ...
Document
... • Most are small, under 15 cm long, but the Japanese giant salamander is 1.5 m long. • Usually their limbs are at right angles to the body; forelimbs and hindlimbs are about equal in length. • Burrowing species and some aquatic forms may have lost their limbs. • Salamanders are carnivorous as both l ...
... • Most are small, under 15 cm long, but the Japanese giant salamander is 1.5 m long. • Usually their limbs are at right angles to the body; forelimbs and hindlimbs are about equal in length. • Burrowing species and some aquatic forms may have lost their limbs. • Salamanders are carnivorous as both l ...
BIPEDAL ADAPTATIONS IN THE HOMINID PELVIS Source: Wanna
... derived and primitive traits (Tuttle, 1981; Lovejoy, 2005; Marchal, 2000; Ashton, 1981; and McHenry, 1982). There are disagreements, however, on the implications of this mixture of traits. Ashton (1981) performed in-depth analysis of over two dozen pelvic variables for many specimens representing ex ...
... derived and primitive traits (Tuttle, 1981; Lovejoy, 2005; Marchal, 2000; Ashton, 1981; and McHenry, 1982). There are disagreements, however, on the implications of this mixture of traits. Ashton (1981) performed in-depth analysis of over two dozen pelvic variables for many specimens representing ex ...
Study guide ch 17 animals fall 2014
... ii. pseudocoelom (body cavity is partially lined by mesoderm) iii. coelom (body cavity is completely lined by mesoderm) d. Vertebrate or invertebrate (define both); which are more numerous? 5. Figure 17.6 is a phylogenetic tree - it represents a set of hypothesis about the phylogenies of 9 major ani ...
... ii. pseudocoelom (body cavity is partially lined by mesoderm) iii. coelom (body cavity is completely lined by mesoderm) d. Vertebrate or invertebrate (define both); which are more numerous? 5. Figure 17.6 is a phylogenetic tree - it represents a set of hypothesis about the phylogenies of 9 major ani ...
BIOL 307 – Lecture 9
... ii. So if predator grabs tail, better to lose tail than to die iii. Also see in lizards (Class Reptilia) iv. Some species actually have different colored tails that are more conspicuous that rest of body so predators will focus attention there 11. Reproduction a. Life history variation (around gener ...
... ii. So if predator grabs tail, better to lose tail than to die iii. Also see in lizards (Class Reptilia) iv. Some species actually have different colored tails that are more conspicuous that rest of body so predators will focus attention there 11. Reproduction a. Life history variation (around gener ...
CHAPTER 34
... At the anterior end of their mouth, they had a set of barbed hooks made of mineralized dental tissue. Conodonts ranged in length from 3 to 30 cm. They probably hunted with their large eyes and impaled their prey on hooks. The food then passed to the pharynx, where a different set of dental elements ...
... At the anterior end of their mouth, they had a set of barbed hooks made of mineralized dental tissue. Conodonts ranged in length from 3 to 30 cm. They probably hunted with their large eyes and impaled their prey on hooks. The food then passed to the pharynx, where a different set of dental elements ...