Study sets, textbooks, questions
Upgrade to remove ads
BIO Final Exam
Terms in this set (50)
The ancestral mollusc __________.
was soft bodied with a cap-shaped shell
The three phyla of segmented animals are
annelids,arthropods, and chordates
A land snail, a clam, and an octopus all have
You find what you believe is a new species of animal. Which of the following characteristics would enable you to argue that it is more closely related to a flatworm than it is to an roundworm?
an incomplete gut
The presence of which of the following structures would best allow you to distinguish a gastropod from a bivalve?
For an annelid to be able to move, what does the muscles of annelids push against?
What is one characteristic that has allowed parasites to be be successful?
they produce a lot of offspring
Ecdysis is found in insects _____.
need to shed their exoskeleton to grow
The heartworms that can accumulate within the hearts of dogs and other mammals have a coelom, a complete gut, and an outer covering that is occasionally shed. To which phylum does the heartworm belong?
An animal that has a polyp body form and forms a mutualistic relationship with zooxanthellae is in the phylum?
Which of these organisms are most closely related to fish?
Support in porifera (sponges) and chordates involves ______ and ______, respectively.
According to Garstang's hypothesis for the evolution of chordates, the presumptive ancestor is
a larval tunicate
If you happen to find an organism and are not sure if it is an amphibian or a snake, which characteristic will help you determine which it is?
jelly and hydra
bobcat, turtle, snake, and octopus
Animal tissues develop from embryonic germ layers. Triploblastic animals have three germ layers (ectoderm, mesoderm, and endoderm) and three basic body plans related to body cavities (acoelomate, pseudocoelomate, and coelomate).
Select the three statements that are true. To review the germ layers and the terminology associated with body cavities, see the Hints.
a pseudocoelom has the same functions as a true coelom, in a coelomate the tissue lining the inner side of the body cavity arises from the same germ layer as the tissue lining the outer side of the body cavity, and a diploblast has no mesoderm
mouth from blastopore, spiral determinate cleavage, coelom from solid masses of mesoderm
anus from blastopore, radial indeterminate cleavage, coelom from folds of archenteron
both protostome and deuterostome
neither protostome and deuterostome
Ex: molluscs and annelids
Ex: echinoderms and chordates
An important trend in animal evolution was cephalization, or development of a "head". An animal is said to show cephalization when it __________.
has an aggregation of sensory structures at one end of the body
Which of the following animals does NOT have a body cavity?
During embryological development, the anus forms before the mouth in __________.
The distinction between sponges and other animal phyla is based mainly on the absence versus the presence of
If an organism exhibits a head with sensory structures, which of the following characteristics would it likely also exhibit?
it is bilaterally symmetrical
What is the key difference between a coelom and a pseudocoelom?
Only a coelom is fully lined with mesoderm tissue.
A coelom is formed from _________.
psudocoelm is formed from ______ and _____.
mesoderm and endoderm
Which of the following statements is correct?
all animals share a common ancestor
Which of the following groups of organisms has flagella associated with its method of feeding?
Which of the following is a characteristic of cnidarians
Which of the following statements describes how healthy corals appear brightly colored?
they host symbionts with colorful photosynthetic pigments
Which of the following characteristics is shared by both cnidarians and flatworms?
a digestive system with a single opening
Which of the following statements correctly describes a characteristic of the phylum Platyhelminthes?
they are dorsoventrally flattened
a structure of tiny teeth used for scraping food particles off a surface and drawing them into the mouth
a phylum of aquatic invertebrate animals that comprises the coelenterates
a segmented worm of the phylum annelida, such as an earthworm or leech
an invertebrate animal of the large phylum arthropoda, such as an insect, spider, or crustacean
an animal of the large phylum chordata, comprising the vertebrates together with the sea squirts and lancelets
the middle layer of an embryo in early development, between the endoderm and ectoderm
the innermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the lining of the gut and associated structures
are a major group of only marine animals
a skeleton formed by a fluid-filled compartment within the body, called the coelom
the body cavity in metazoans, located between the intestinal canal and the body wall
having a body derived from three embryonic cell layers, as in all multicellular animals except sponges and coelenterates
having two germ layers, the ectoderm and endoderm, as the embryos of sponges and coelenterates
Recommended textbook explanations
Miller and Levine Biology
Joseph S. Levine, Kenneth R. Miller
Campbell Biology (AP Edition)
Cain, Jackson, Minorsky, Reece, Urry, Wasserman
Biocalculus: Calculus for the Life Sciences
Lehninger Principles of Biochemistry
David L Nelson, Michael M. Cox
Sets found in the same folder
BSC2011 Unit 1: Clicker Questions
Biodiversity Final Exam Review
Sets with similar terms
MASTERING BIOLOGY FUNGI AND ANIMALS
Chapter 32 Biology II
Chapter 32 Biology II
Ch 32 Homework
Other sets by this creator
Bio203 Final Study Guide
Bio Lab midterm
Italian Numbers 1-100
Other Quizlet sets
Final Exam HSAD 305
Microeconomics - Chapter 11 and 12 Review (12/2020)