A large group that includes Apicomplexa , Ciliophora , Dinoflagellata are called Alveolata . Apicomplexa is otherwise called as Apicomplexia. It is unicellular and endospore-forming. All the apicomplexans are either inter or intracellular parasites of animals. Most of the apicomplexan have a unique form of organelle that includes a type of plastid is known as apicoplast.

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 24, Problem 3AL

Summary Introduction

A large group that includes Apicomplexa, Ciliophora, Dinoflagellata are called Alveolata. Apicomplexa is otherwise called as Apicomplexia. It is unicellular and endospore-forming. All the apicomplexans are either inter or intracellular parasites of animals. Most of the apicomplexan have a unique form of organelle that includes a type of plastid is known as apicoplast.

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50) Some protists, formerly united as the ʺamitochondriateʺ clade, have recently been shown to be rather diverse. Some of them possess neither mitochondria nor mitochondrial genes (and have been classified as fungi). Others possess no mitochondria, but do have mitochondrial genes in their nuclear genome. Still others have modified mitochondria (viz. mitosomes or hydrogenosomes). Which statement(s) represent(s) consequences of these recent findings? 1. The amitochondriates do not comprise a true clade. 2. The ʺamitochondriate hypothesisʺ concerning the root of the eukaryotic tree has been strengthened. 3. Just as there is a diversity of cyanobacterial descendants among eukaryotes, so too is there a diversity of alpha-proteobacterial descendants among the eukaryotes. 4. If the amitochondriate organisms continued to be recognized as a taxon, this taxon would be polyphyletic. 5. Horizontal gene transfer involving mitochondrial genes has occurred in some amitochondriate organisms. A) 1 only…

In the early 1930s, G. F. Gause carried out a series of experiments using two species of ciliated protists (Paramecium), which are single-celled eukaryotic protozoans. The protists were cultured together and separately, with the bacteria being the single food source. The results are shown in the figure below. (a) Based on figure, identify and explain the interaction that is taking place between P. caudatum and P. aurelia. (b) Clam shrimp, a natural predator to P. caudatum, is introduced to the culture containing both P. caudatum and P. aurelia after 24 days. Predict the impact that the clam shrimp will have on the culture and the populations. Justify your prediction.

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 24, Problem 3AL

Summary Introduction

A large group that includes Apicomplexa, Ciliophora, Dinoflagellata are called Alveolata. Apicomplexa is otherwise called as Apicomplexia. It is unicellular and endospore-forming. All the apicomplexans are either inter or intracellular parasites of animals. Most of the apicomplexan have a unique form of organelle that includes a type of plastid is known as apicoplast.

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Answer 3

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 24, Problem 3AL

Summary Introduction

A large group that includes Apicomplexa, Ciliophora, Dinoflagellata are called Alveolata. Apicomplexa is otherwise called as Apicomplexia. It is unicellular and endospore-forming. All the apicomplexans are either inter or intracellular parasites of animals. Most of the apicomplexan have a unique form of organelle that includes a type of plastid is known as apicoplast.

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Answer 4

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 24, Problem 3AL

Summary Introduction