Corresponding Questions- 1- Euglena live in freshwater aquatic habitat.docx

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Corresponding Questions: 1. Euglena live in freshwater aquatic habitats. What adaptations allows them to be successful in this environment? Be specific and reference your observations. 2. Diatoms, for a long time, were placed in their own phylum until recently with genetics, we were able to see that they share close ties with Golden and Brown Algae. Some specific traits that are shared between those in Stramenophile are: (1) chlorophylls a and c and fucoxanthin are the major light-harvesting pigments for photosynthesis and (2) the mitochondrial inner membrane developed into tubular invaginations. What are the unique characteristics that help to distinguish diatoms and brown algae from one another? Be sure to reference your observations. 3. How do individuals in the Ciliates move through their environment and obtain energy? Be specific and reference your observations. 4. Radiolarians and Forams are both marine plankton and have hardened morphological structures. Why would these groups have these hard structures? And how do these structures differ between these two closely related groups? Be sure to reference your observations. 5. Why are Rhodophytas a different color than green algae (Chlorophytes and Charophytes)? Why do you think this trait evolved? 6. Compare and Contrast the two green algae you look at with the blue-green algae. Be sure to reference your observations. 7. Which one of the green algae that you looked at is more closely related to land plants? Why? Describe and explain how Amoebas move and obtain energy in their environment? Be sure to reference your observations. .

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How does differ from evolution systematic? Only cladistics traces evolution relationship and construct classifies that reflects these relationship. Only evolution systematic recognizes that organisms must be compared using specific characters. Only cladistics rigorously defines the kinds of homologies that yields the most useful information. Only clasdictics uses homologous traits to trace to apply evolution relationship Why is the paleospcc.es concept more difficult to apply to organisms than the biological and the ecological species concepts? Because reproductive isolation cannot be studied directly Because ecological distinction are difficult to impossible be past environments Because neither exclusive mating nor ecological separators are usually accessible us fossil specimens. Because homologous Waits are rarely expressed In fossil specimens Parapatric specification is characterized by? Complete reproductive isolation of two populations Partial reproductive isolation of two populations. No reproductive isolation of two populations. Complete ecologic niche separation of two species What is the age of the oldest known fossil found on Earth 3.8 billion years. 3.5 billion years. 2 billion years. 520 million years. Taphonomy is the study of: What happens to organic matter after death. How bones mineralize during fossilization. The rules of classification. Ancestral traits In closely related species. When general and specialized traits of organisms are considered in evolution it is important to recognize that only a generalized ancestor can profit from the flexible evolutionary basis for rapid diversification Which of the following animals is an appropriate example for a highly specialized placental mammal that is structurally to a narrow, rodent/woodpecker-like econiche: The duck-billed platypus. The wallaby. The white-tailed deer. The aye-aye of Madagascar. Solution 41. B. Partial reproductive isolation of two populations. Parapatric speciation occurs when populations are separated not by a geographical barrier, such as a body of water, but by an extreme change in habitat. While populations in these areas may interbreed, they often develop distinct characteristics and lifestyles. Reproductive isolation in these cases is not geographic but rather temporal or behavioral. 42. B. 3.5 billion years. The oldest known fossils, are cyanobacteria from Archaean rocks of western Australia, dated 3.5 billion years old. 43. B. How bones mineralize during fossilization. Taphonomy is the branch of palaeontology that deals with the processes of fossilization. 44. C. The aye aye of Madagascar. From an ecological point of view the aye-aye fills the niche of a woodpecker, as it is capable of penetrating wood to extract the invertebrates within..

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