40. The 2nd flagella serve no apparent function in the activities of the cell but it does tell us something about Euglena's ancestry. What is the reason for the 2nd flagella? Short Essays. 1. Conjugation is considered to be sexual reproduction Explain how 2 Paramecia come together and transfer the hereditary material. List the stages. 2. How does conjugation occur in Spirogyra. List the stages and explain what happens to them during unfavorable conditions to become dormant.
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Conjugation in Paramecia: Conjugation in Paramecia is a sexual reproduction process that involves the exchange of genetic material between two compatible cells. The stages of conjugation in Paramecia are as follows: i. **Recognition and pairing**: Two compatible Show more…
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Eukaryotic Cells: Kingdom Protista 1. Name a characteristic shared by both plants and algae. 2. Give two reasons why algae are beneficial to the environment. 3. Besides cell wall structures and energy storage products, what other characteristics are used to classify algae? 4. Sexual reproduction of Spirogyra is accomplished by producing a zygospore. 5. What structure does Euglena use to make its own food? 6. Name two types of algae that have flagella.
1. Prokaryotes are capable of lateral transmission of genetic elements such as plasmids. Lateral transmission is the ability to share genetic material without reproduction; that is, to simply pass genetic material to another organism. How does this characteristic make it more difficult for scientists to place various prokaryotic organisms into classification groups? 2. What nutritional advantage does Euglena have over other protists? 3. What is the likely explanation for how Euglena gained the ability to photosynthesize? 4. How does the size of the eukaryotes you observed compare to the sizes of the prokaryotic cells? 5. Describe the major difference between the internal organization of eukaryotes versus that of prokaryotes?
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