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Biology 114 Exam Three Study Questions and Correct Answers-University of Idaho £7.17   Add to cart

Exam (elaborations)

Biology 114 Exam Three Study Questions and Correct Answers-University of Idaho

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  • Module
  • BIO 114
  • Institution
  • BIO 114

**Among the characteristics unique to animals is: a. gastrulation b. multicellularity c. sexual reproduction d. flagellated sperm e. heterotrophic nutrition What synapomorphy distinguishes animals as a monophyletic group, distinct form choanoflagellates? a. multicellularity b. coloniality c. hete...

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  • August 9, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIO 114
  • BIO 114
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Biology 114 Exam Three Study
Questions and Correct Answers-
University of Idaho

**Among the characteristics unique to animals is:
a. gastrulation
b. multicellularity
c. sexual reproduction
d. flagellated sperm
e. heterotrophic nutrition ✅

What synapomorphy distinguishes animals as a monophyletic group, distinct form
choanoflagellates?
a. multicellularity
b. coloniality
c. heterotrophy
d. no cell walls ✅a. multicellularity

Based on morphological and molecular data, which living protist group is most closely
related to animals?
a. poriferans
b. nucleariids
c. chytrids
d. choanoflagellates
e. dinoflagellates ✅b. nucleariids

This type of body symmetry gives an animal a dorsal and ventral side, a left and right
side, and an anterior and posterior end:
a. asymmetry
b. bilateral symmetry
c. radial symmetry
d. planar symmetry ✅b. bilateral symmetry

The digestive system of most animals is lined with cells through which nutrients are
absorbed. What is the embryonic origin of these cells?
a. endoderm
b. ectoderm
c. mesoderm ✅a. endoderm

, The most ancient branching point in animal phylogeny is the characteristic of having
____.
a. radial or bilateral symmetry
b. diploblastic or triploblastic embryos
c. true tissues or no tissues
d. a body cavity or no body cavity ✅c. true tissues or no tissues

**Which type of development is characterized by a blastopore that becomes the anus?
a. deuterostome
b. protostome
c. triploblastic
d. diploblastic
e. blastulation ✅a. deuterostome

The evolution of animal species has been prolific (the estimates go into the millions and
tens of millions). Much of this diversity is a result of the evolution of novel ways to
_____.
a. reproduce
b. arrange cells into tissues
c. sense, feed, and move
d. form an embryo and establish a basic body plan ✅c. sense, feed, and move

The primary ecological role of animals is:
a. producer
b. decomposer
c. consumer
d. detritivore
e. saprophage ✅c. consumer

An adult animal that possesses bilateral symmetry would most likely be ___.
a. triploblastic
b. a deuterostome
c. coelomates
d. diploblastic ✅a. triploblastic

Diploblastic animals have which of the following germ layers?
a. endoderm
b. ectoderm
c. mesoderm
d. a and b only
e. all of the above ✅d. a and b only

What was an early selective advandage of a coelom in animals? A coelom ____.
a. contributed to a hydrostatic skeleton, allowing greater range of motion
b. was a more efficient digestive system
c. allowed cephalization and the formation of a cerebral ganglion

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