Biology: Concepts and Applications (MindTap Course List)
10th Edition
ISBN: 9781305967335
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 22, Problem 3CT
Summary Introduction
To determine:
The reason that sexual reproduction is more advantageous to molds than asexual reproduction in the presence of a low amount of food.
Introduction:
All the organisms are classified into two types. These are prokaryotes and eukaryotes. Prokaryotes are the organisms that do not contain a well-defined nucleus. However, eukaryotes have a well-defined nucleus properly enclosed in a nuclear membrane. The
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Molds usually reproduce sexually when food is running low. Why might sexual reproduction be more advantageous at this time than when food is plentiful
After plasmogamy has occurred, many molds (Mucoromycetes) exist in a heterokaryotic stage for up to centuries at a time. What occurs at the immediate end of this stage?
The nuclei fuse in a process called karyogamy.
The hyphae fuse in a process called karyogamy.
Diploid spores are produced in various spore-producing structures.
A haploid zygote is formed that becomes multicellular through repeated rounds of mitosis.
Which of the following is false of the bread molds/zygomycetes?
The bread molds reproduce by using spores
The bread molds are a coenocytic fungus
The sexually reproductive structure of the bread molds is the zygosporangium
Bread molds cannot reproduce asexually
Chapter 22 Solutions
Biology: Concepts and Applications (MindTap Course List)
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- Species belonging to the kingdom fungi can reproduce both sexually and asexually. In this respect, they are similar to what ?arrow_forwardIn secondary endosymbiosis, the plastid organelle is derived from engulfing Prokaryotic algal cell. an True Falsearrow_forwardSome fungi exhibit dimorphism, i.e. they can exist in both yeast and mold form. Why is this so? What advantage does this provide for these organisms?arrow_forward
- How do protists carry out sexual reproduction? Discuss by giving an example.arrow_forwardWhich parasitic protist evades the host immune system by altering its surface proteins with each generation? a. Paramecium caudatum b. Trypanosoma brucci c. Plasmodium falciparum d. Phytophthora infrstansarrow_forwardHow does killing Anopheles mosquitoes affect the Plasmadium protists?arrow_forward
- The presence of a contractile vacuole indicates that a single-celled protist _______. a. is marine c. is photosynthetic b. lives in fresh water d. secretes a toxinarrow_forwardThe Zygomycetes (bread molds) are a coenocytic fungus. This means that; Their hyphae lack crosswalls They only reproduce sexually They reproduce using conidia They have heterokaryotic hyphaearrow_forwardRhizopus (bread mold) reproduces both sexually and asexually. Rhizopus' sexual reproductive structure is called? Conidia The zygosporagium The ascusarrow_forward
- Give three reasons why tilapia does not stay in the seaarrow_forwardTrue or False? A protist that was well adapted to its current environment and was not resource limited would most likely reproduce via asexual reproduction.arrow_forwardSimplest form of reproduction occurs in which of the following organisms?Gracilaria sp.Volvox sp.Spirogyra sp.Chlamydomaonas sp.Sargassum sp.Ulva sp.arrow_forward
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