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WorksheetsAnimal Diversity- ch. 27 BSC 2011
Total questions: 20
Worksheet time: 10mins
Most animals exhibit the following structures or functions EXCEPT
Nervous and muscle tissues
Unique types of intercellular junctions such as tight junctions
Autotrophic nutrition
Sexual reproduction
Multicellularity
What is the correct sequence of the following four events during animal development?
(1) gastrulation (2) metamorphosis (3) fertilization (4) cleavage
4,3,2,1
4,3,1,2
3,2,4,1
3,4,1,2
The number of legs an insect has, or the number of joints in a digit and location of limbs are influenced by ___________ genes
Haploid
Introns within
Heterotic
Hox
What should animals as diverse as corals and monkeys all have in common?
A body cavity between wall and digestive system
Number of embryonic tissue layers
Type of body symmetry
Presence of Hox genes
Almost all of the major animal body plans seen today appeared in the fossil record over 500 mya at the beginning of the
Cambrian period
Jurassic period
Permian period
Carboniferous period
The major branches of Eumetazoa are the Radiata and Bilateria. These names refer to what characteristic of these animals?
Size
Body symmetry
Embryonic cleavage
Types of appendages
Cephalization is generally associated with all of the following EXCEPT
Bilateral symmetry
Concentration of sensory structures at the anterior end
A brain
A longitudinal nerve cord
A sessile existence
You are trying to identify an organism. It is an animal, but it does not have nerve or muscle tissue. It is neither diploblastic or triploblastic. It is probably a
Flatworm
comb jelly
Sea star
Sponge
Nematode
Which of the following functions is an advantage of having a coelom?
Internal organs are cushioned and protected from injury.
Organs can grow and move independently of the outer body wall
The cavity does NOT allow for the diffusion of gases.
Some of the choices are correct.
All of the choices are correct.
The type of metamorphosis where the eggs hatch and the young resemble the adults is
Incomplete
complete
asymptomatic
zygosymptomatic
homeobox
This animal has _______________ symmetry.
biradial
radial
asymmetrical
symmetrical
bilateral
The blastopore is a structure that is evident in the
Zygote
Blastula
Eight-cell embryo
Gastrula
Egg and sperm
An example of an ecdysozoan animal is a
sponge
crab
shark
jelly fish
squid
What is the significance of homeobox genes?
There are the same 39 genes present in almost all animals.
They control the development of animals from head to tail.
Their presence indicates all animals share a common ancestor.
Some of the choices are correct
all choices are correct.
The layer of tissue that develops into specific tissues during embryonic development is the
Germ layer
Diploblast layer
Triploblast layer
Epithelial layer
The type of animal where the mouth develops from the first opening; includes arthropods, mollusks, and annelids is
Protostome
Deuterostome
Blastopores
Blastocoels
Animals without differentiated tissues (sponges) are called
metazoans
eumetazoans
parazoans
azoans
Deuterostomes
Animals that have two structural features such as a larval stage and feeding stage
chordates
Lophotrochozoa
Protozoans
Amoebozoans
Most rapid evolution of new animal phyla and animal diversity in Earth’s history occurred in the ___________ period.
Cambrian
Jurassic
Hadean
Ediacaran
Early animal life evolved from protists living in this time 635 mya
Cambrian
Ediacaran
Hadean
Jurassic
