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Worms!

Worms!

Worms!. Parasitic Worms. Kingdom Animalia : eukaryotic , no cell walls, heterotrophic nutrition, specialized tissues. A. Platyhelminthes. Flatworms e.g. planarians . Platyhelminthes. Trematoda = flukes leaf-shaped parasitic complex life cycles with several larval forms

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892 views • 68 slides
Viruses

Viruses

Viruses . Intro to viruses. http://www.brainpop.com/health/diseasesinjuriesandconditions/viruses /. What is a Virus?. Very small Non-living particle Made up of nucleic acid and proteins Can only reproduce by infecting living cells Do not carry out respiration, grow or develop.

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577 views • 41 slides
Chapter 16

Chapter 16

Chapter 16. Nonspecific Defenses of the Host. Nonspecific Defenses of the Host. Susceptibility Lack of resistance to a disease Resistance Ability to ward off disease Nonspecific resistance Defenses against any pathogen

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427 views • 27 slides
Nonspecific Defenses of the Host

Nonspecific Defenses of the Host

Nonspecific Defenses of the Host. Susceptibility Lack of resistance to a disease Resistance Ability to ward off disease Nonspecific resistance Defenses against any pathogen Specific resistance Immunity, resistance to a specific pathogen. Host Defenses. Figure 16.1.

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503 views • 26 slides
3C3

3C3

3C3. Viral replication results in genetic variation in virus and host. Viral replication is different from other types. Reproductive cycles. Attachment or adsorption Target part of bacterial outer surface Penetration or injection T4 pierces cell wall to inject viral genome Synthesis

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298 views • 15 slides
Introduction to Lab Ex. 21: Bacteriophages

Introduction to Lab Ex. 21: Bacteriophages

Introduction to Lab Ex. 21: Bacteriophages. Viruses are characterized from all other organisms by specific features. They are not considered as truly living organisms due to their inability to reproduce outside of a living cell. Characteristics of all viruses include :

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221 views • 9 slides

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