A Body kite-ike in shape (if viewed trom the top). B. Body not kite-like in shape (if viewed from the top). Go to statern 2 33Y How old is the earth? 2A Pelvic fin absent and nose saw-like Family Pristiophoridas 8. Pelvic fin present Go to staternent 3 A. Six gill slits present Family Hexanchidae B. Five gill slits present Go to statement 4 4 A Only one dorsal fin present. Family Scyliorhinidae B. Two dorsal fins present.. Go to statement 5 5 A. Mouth at front of head rather than back on ventral side of head Family Rhinocodontidae B. Mouth back on ventral side of head Go to statement 6 6 A. Head expanded on side with eyes at end of expansion. Family Sphymidae B. Head not expanded. Go to statement 7 7 A. Tophalf of caudal fin exactly same size and shape as .Family Isuridae bottom half. B. Top half of caudal fin different in size and shape than bottom half. Go to statement 8 8 A. First dorsal fin very long, almost half total length of body.. Family Pseudotiakidae Go to statement 9 ..... B. First dorsal fin regular length Family Alopidae almost as long as entire body. Go to statement 10

A Body kite-ike in shape (if viewed trom the top). B. Body not kite-like in shape (if viewed from the top). Go to statern 2 33Y How old is the earth? 2A Pelvic fin absent and nose saw-like Family Pristiophoridas 8. Pelvic fin present Go to staternent 3 A. Six gill slits present Family Hexanchidae B. Five gill slits present Go to statement 4 4 A Only one dorsal fin present. Family Scyliorhinidae B. Two dorsal fins present.. Go to statement 5 5 A. Mouth at front of head rather than back on ventral side of head Family Rhinocodontidae B. Mouth back on ventral side of head Go to statement 6 6 A. Head expanded on side with eyes at end of expansion. Family Sphymidae B. Head not expanded. Go to statement 7 7 A. Tophalf of caudal fin exactly same size and shape as .Family Isuridae bottom half. B. Top half of caudal fin different in size and shape than bottom half. Go to statement 8 8 A. First dorsal fin very long, almost half total length of body.. Family Pseudotiakidae Go to statement 9 ..... B. First dorsal fin regular length Family Alopidae almost as long as entire body. Go to statement 10

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter15: Diversity Of Animals

Section: Chapter Questions

Problem 3ACQ: Figure 15.33 Which of the following statements about common features of chordates is true? a. The...

See similar textbooks

Similar questions

91. Which of the following represent "Classic" (European) Neanderthal adaptation(s)? larger, thicker hands and fingers. thicker long bones (i.e., thigh bones, arm bones). a larger, wider pelvis and birth canal. short, stocky, heavily muscled torsos. All of the above
A bird or feathered dinosaur is. Neornithes Archaeopteryx Enantiornithes Paleognathae
The similarities between the bone structure of a human hand and a cats paw suggest what? a. a common evolutionary ancestor b. Humans are actually kitty cats c. nothing d. similar biological function
Helping tags: Biology, Vertebrate AnatomyBased on David Attenborough's "Rise of Animals", do new anatomical structures arise de novo? Why or why not? Support your answer by citing at least one example or reference.Pls help me answer the question. WILL UPVOTE, just pls show full explanation and cite at least one example or reference to support your answer. Thanks.
95.The stratigraphic range of cephalopods as a whole is Ordovician to Recent T F
71.The stratigraphic range of brachiopods is ordovician to recent T F
Humans do not exhibit a lot of physical variation in their skeletons. A. True B. False
calculate aspect rather ratio if the caudal fins use formula AR = h2 / SA of the Finn
109.Nautilus is a coiled cephalopod. It is unusual because most nautiloids were straight cones. T F
Whale skeletons contain nonfunctional pelvic bonesa. as a result of convergent evolution.b. due to catastrophism.c. because whales evolved from ancestors that had hind legs.d. because the bones might be needed for a future adaptation.
multiple choice: The peculiar beveled wear (inward from the lips) that tends to characterize the incisors of older Neanderthals may reflect: a the great power of their temporalis and masseter muscles. b their congenital lack of premolars. c their tendency to grind their teeth in their sleep. d intentional alteration of the face to increase sexual attractiveness. e the use of the front teeth as tools, e.g. holding animal skins while scraping them Mitochondrial DNA shows that all humans living today share a common maternal ancestor who lived somewhere in: a in Eurasia about 200,000 years ago. b in Africa about 200,000 years ago. c in Africa and had only male children. d in Eurasia about 2 million years ago. e in Eurasia and gave rise to both Homo sapiens and Homo ergaster. Ancient DNA specialists often focus on mitochondrial (mt) DNA, as opposed to nuclear DNA, because: a it preserves especially well in female…
The Evolution of the Stickleback Fish. Watch the ~15 minute video, Making of the Fittest: Evolution of the Stickleback Fish (https://youtu.be/Pv4Ca-f4W9Q) and the 1 minute video “Stickleback Fish Environment” (https://youtu.be/IRqLy3Oz-oM), both from the Howard Hughes Medical Institute. Answer the questions that follow: True or False? Having pelvic spines is always advantageous to a stickleback. In one sentence, explain your answer. True or False? Dramatic changes in traits, such as the loss of limbs, can occur through mutations affecting a single gene. Provide evidence for your answer. Below is a simplified schematic representation of some of the genetic elements involved in the regulation of Pitx1 gene expression (from HHMI BioInteractive). The large grey rectangle represents the protein-coding region of the Pitx1 The smaller rectangles to the left (b and c) are regulatory switches (networks of regulatory genes); each one allows a specific binding protein to interact with it and…