Question

General Biology 1 lab report Kingdom Animalia

Please make sure to answer those questions cause they are connected to each other and I cannot separate them. Please I paid extra for those questions make sure please answer all of those. Please use well handwritten to understand.

Phylum Nematoda

1. What kind of body symmetry do they have?

2. What are the unique structures? (Why are they in this phylum and not another?)

3. How do they get their food?

4. How do they reproduce?

5. Where are they found?

6. Common examples:

Phylum Mollusca

1. What kind of body symmetry do they have?

2. What are the unique structures? (Why are they in this phylum and not another?)

3. How do they get their food?

4. How do they reproduce?

5. Where are they found?

6. Common examples:

Phylum Annelida

1. What kind of body symmetry do they have?

2. What are the unique structures? (Why are they in this phylum and not another?)

3. How do they get their food?

4. How do they reproduce?

5. Where are they found?

6. Common examples:

Phylum Arthropoda

1. What kind of body symmetry do they have?

2. What are the unique structures? (Why are they in this phylum and not another?)

3. How do they get their food?

4. How do they reproduce?

5. Where are they found?

6. Common examples:

170 EXERCISE 12 Kingdom Animalia

Phylum Echinodermata

1. What kind of body symmetry do they have?

2. What are the unique structures? (Why are they in this phylum and not another?)

3. How do they get their food?

4. How do they reproduce?

5. Where are they found?

6. Common examples:

Phylum Chordata

1. What are the four characteristics of chordates?

Answer 1

Nematoda --

They are bilaterally symmetrical ie, when divided longitudinal they have two similar sides on each side.

They are round and elongated in shape. Posses complete alimentary canal. Triploblastic ie, formed from three germ layers and psuedocoelomate.

They are parasitic in nature usually obtain food by feeding and inhabiting in host cell

Reproduction is sexual. They have separate sexes (dioecious)

They are found in fresh water, marine and terrestial environment

Examples include Ascaris, Wuchereria, Ancyclostoma

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Phylum Mollusca

Their body is bilaterally symmetrical.

This is the second largest phyllum. Posses true coelom and are triploblastic. Their body is not segmented and is covered by a hard calcareous shell. They have head, foot made of muscle and a hump in their body. They are the first to have gills for respiration and also carry circulation. They solely posses structure like radula. Also posses stinging cells in anterior region of their body.

They obtain their food by use of stinging cells and radula like organs.

They are aquatic such as marine or in fresh water. Also found terrestial

They lay egg for giving birth to young one. Fertilization is external

Example include octopus, sepia , pila, pinctada

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Phylum Annelida

Bilateral symmetry

Unique features-- Segmented body, Posses closed circulatory system, triploblastic, true coelom, contain nephridia as excretory organ. Posses longitudinal and circular muscles which help in movement. They posses ganglion cells are nervous system.

They may be aquatic, terrestial, parasitic or free living

They feed on dead and live organic matter of soil.

Sexual mode of reproduction

Example include-- Nereis, Earthworm and Blood sucking leech.

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Phylum Arthropoda

Bilaterally symmetrical

Have joined appendages, body divided into three head, thorax and abdomen. Open circulatory system. Posses gills, lungs or tracheal system as respiratory organ, posses malphigian tubule for excretion. Largest phyllum. Have Chitinious exoskeleton

Present terrestially

Sexual reproduction, internal fertilization, mostly egg laying.

Feed on food debris or other insects by capturing with mouth

Examples include scorpion, Grasshopper, locust, butterfly

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Echinodermata

Radially symmetrical ie, they are divided from centre into equal/similar parts.

Unique features-- presence of water vascular system which helps conduct food and water. Also helps in respiration. No excretory system is present.

Water vacular system helps obtaining food

They are all marine

Sexual reproduction with external fertilization

Example include -- star fish , Sea urchin and Antedon

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Chordates

1. Posses notochord

2. Dorsal hollow nerve cord

3. Paired pharyngeal gill slits are present

4. Closed circulatory system and heart is ventral.