Intro to Animal Diversity
Supplemental Instruction
Iowa State University / Leader: / Chelsea
Course: / Bio 211(4)
Instructor: / Boury
Date: / 9/29/11
1.What is not a common characteristic to all animals?
a. They are all multi cellularb. They all have cell walls
c. They are all heterotrophicd. They all have muscle and nervous systems
2.What is not one of the four main morphological and developmental features in animal body plans?
a. Type of body symmetryb. Presence/absence of different tissue types
c. Specific mating habitsd. Presence/absence of a body cavity
3.What are animals collectively known as?
a. Metazoab. Parazoa
c. Eumetazoad. Cretazoa
4.Localization of sensory structures is at the anterior end of the body is termed?
a. Gastrulationb.Cephalization
c. Radiationd.Segmentation
5.Term for animals with a body cavity completely lined with mesoderm?
a. acoelomatesb. pseudocoelomates
c. coelomatesd. none of the above
6.When the blastopore becomes the anus, this animal is classified as what?
a. Deuterostomesb. Protostomes
c. Bothd. Neither
7.Hox genes:
a. Are present in all animalsb. involved in pattern formation in early embryos
c. account for large variations in appendage typesd. all of the above
8.Lophotrochozoa includes:
a. spongesb. nematods
c. vertebraesd. mollusks
9.The anterior of an animal is where?
a. tailb. head
c. front d. back
10.Cephalization occurs in which phylum?
a. Porifera (sponges)b.Cnidaria (jellyfish)
c. Platyhelminthes (flatworms)d. Echinodermata (Star fish)
11.Pseudocoelomates:
a. Lack a fluid filled cavityb. have fluid filled cavity completely lined with mesoderm.
c. have fluid filled cavity partially lined with mesoderm.
d. have an air filled cavity that is partially lined with mesoderm.
12.Naturally occurring identical twins are possible only in animals that:
a. have spiral cleavageb. have determined cleavage
c. are protostomesd. have indeterminate cleavage
13.Parazoa have:
a. no tissue typesb. two tissue types
c. three tissue typesd. Both b and c
14.Animals most likely developed from:
a. cyanobacteriab. choanoflagellates
c. fungid. all of the above
15.Cambrian explosion:
a. showed major diversifications in animal phylab. occurred 530 million years ago
c. happened rapidlyd. all of the above
16. Humans are examples of which type of symmetry:
a. bilateralb. radial
c. neitherd. both
17.Small subunit RNA:
a. Universal in all organismsb. Show more similarities=more closely related
c. Contains a lot of informationd. all of the above
18.True or false: A snail is a deuterostome.
19.True or false: Nematods exhibit ecdysis.
20.Which of the follow exhibits segmentation?
a. Porifera (sponges)b. Chordata (vertebraes)
c. Cnidarians (Jellyfish)d. None of the above