Whether the hypothesis that Mesomycetozoa is the sister group of animals is correct or not. Concept introduction : The sponges possess flagellated cells called choanocytes. These choanocytes show similarity with the cells of choanoflagellates suggesting that the animals evolved from a choanoflagellate as their ancestor. Choanoflagellates are a group of single celled protists. They are found in both marine and freshwater. They have flagella that help them in locomotion and feeding as in sponges. They are filter feeders. They filter out bacteria and food particle from surrounding water.

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Answer 1

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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 33.1, Problem 2CC

Summary Introduction

To determine: Whether the hypothesis that Mesomycetozoa is the sister group of animals is correct or not.

Concept introduction: The sponges possess flagellated cells called choanocytes. These choanocytes show similarity with the cells of choanoflagellates suggesting that the animals evolved from a choanoflagellate as their ancestor.

Choanoflagellates are a group of single celled protists. They are found in both marine and freshwater. They have flagella that help them in locomotion and feeding as in sponges. They are filter feeders. They filter out bacteria and food particle from surrounding water.

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Alleles at the P locus control seed color. Plants which are pp have white seeds, white flowers and no pigment in vegetative parts. Plants which are P_ have black seeds, purple flowers and may have varying degrees of pigment on stems and leaves. Seed color can be assessed, visually, based on if the seed is white or not white A gene for mold resistance has been reported and we want to determine its inheritance and whether it is linked to P. For the purposes of this exercise, we will assume that resistance is controlled by a single locus M, and M_ plants are resistant and mm plants are susceptible. Resistance can be measured, under greenhouse conditions, 2 weeks after planting, by injecting each seedling with a spore suspension. After two weeks, the seedlings can be rated as resistant or susceptible, based on whether or not tissue is actively sporulating. For this exercise we will use seed and data from the F10 generation of a recombinant inbred population produced using single seed…

Answer 2

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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 33.1, Problem 2CC

Summary Introduction

To determine: Whether the hypothesis that Mesomycetozoa is the sister group of animals is correct or not.

Concept introduction: The sponges possess flagellated cells called choanocytes. These choanocytes show similarity with the cells of choanoflagellates suggesting that the animals evolved from a choanoflagellate as their ancestor.

Choanoflagellates are a group of single celled protists. They are found in both marine and freshwater. They have flagella that help them in locomotion and feeding as in sponges. They are filter feeders. They filter out bacteria and food particle from surrounding water.

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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 33.1, Problem 2CC

Summary Introduction

To determine: Whether the hypothesis that Mesomycetozoa is the sister group of animals is correct or not.

Concept introduction: The sponges possess flagellated cells called choanocytes. These choanocytes show similarity with the cells of choanoflagellates suggesting that the animals evolved from a choanoflagellate as their ancestor.

Choanoflagellates are a group of single celled protists. They are found in both marine and freshwater. They have flagella that help them in locomotion and feeding as in sponges. They are filter feeders. They filter out bacteria and food particle from surrounding water.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

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 33.1, Problem 2CC

Summary Introduction