ZOO 103: General Practical Zoology I

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What is the meaning of the term 'protozoa'?

Simplest animals

Primitive organisms

First animals (correct)

Lower invertebrates

What is the characteristic of the shelled Foraminiferans?

Multi-cellular

Not microscopic (correct)

Microscopic

Unicellular

What is the level of organization of protozoa?

Organ level

Protoplasmic level (correct)

Cellular level

Tissue level

What is the approximate number of species of protozoa that are parasitic?

10,000 Signup and view all the answers

What is the total number of species of protozoa?

65,000 Signup and view all the answers

What is the characteristic of protozoa in terms of germ layers?

They have no germ layers Signup and view all the answers

What is the characteristic feature of the Phylum Porifera?

Being pore-bearing animals Signup and view all the answers

Which of the following is NOT a diagnostic feature of the Mastigophorans?

Presence of a cell wall Signup and view all the answers

Which of the following Protozoa is classified under the sub-class Apicomplexans?

All of the above Signup and view all the answers

What is the main difference between Opalina and Paramecium?

Number of flagella Signup and view all the answers

What is the characteristic feature of the Phytomastigophorans?

Presence of chloroplasts Signup and view all the answers

What is the main characteristic of the Ciliates?

Presence of cilia Signup and view all the answers

What is the main characteristic of the Sub-kingdom Protozoa?

They are all eukaryotic cells Signup and view all the answers

Which of the following organisms does not have flagella as its locomotory organelle?

Plasmodium Signup and view all the answers

How many Sub-classes are found among the ciliates?

5 Signup and view all the answers

Which of the following organisms is a member of the class Phytomastigophora?

Euglena Signup and view all the answers

What is the name of the locomotory organelle found in Entamoeba?

Pseudopodia Signup and view all the answers

How many Sub-phyla are found in the sarcomastigophoran?

3 Signup and view all the answers

What is the level of organization of the cells in Phylum Porifera?

Cellular level Signup and view all the answers

How many species of Phylum Porifera are known?

Approximately 10,000 Signup and view all the answers

Why are Phylum Porifera considered an ancient group?

Because they have an abundant fossil record Signup and view all the answers

What is the characteristic of the body structure of Phylum Porifera?

Diploblastic Signup and view all the answers

Why are Phylum Porifera not considered part of the evolution from protozoa to metazoa?

Because they seem to be outside the line of evolution Signup and view all the answers

What is the term used to describe Phylum Porifera due to their evolutionary history?

Protozoa Signup and view all the answers

What is the term used to describe the type of organization found in Cnidarians?

Tissue level Signup and view all the answers

What is the main function of cnidocytes?

To capture prey Signup and view all the answers

What is the approximate number of species found in the phylum Cnidaria?

10,000 Signup and view all the answers

What is the characteristic of the body shape of Cnidarians?

Radial symmetry Signup and view all the answers

What is the name of the group of animals that includes hydroids, jellyfishes, and corals?

Cnidarians Signup and view all the answers

What is the term used to describe the first metazoans (eumetazoans)?