Put the following items in order from when they were first predicted to be on Earth until the mos recent . Multicellular eukaryotes, prokaryotes , photosynthetic cells , unicellular eukaryotes
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- Which of the following organisms is a prokaryote? fungus algae protozoa archaea both archaea and protozoaAfter the glacial retreat at the end of the last ice age, some three-spine stickleback fish (Gasterosteus aculeatus) were isolated in small lakes. A mutation occurred in these fish that resulted in the loss of pelvic spines. Today, all freshwater sticklebacks lack pelvic spines, but are still classified as members of the same species as marine sticklebacks. Scientists collected sticklebacks from both marine and freshwater environments and placed them together in a controlled environment. Which of the following statements describes the effect of the mutation on their ability to interbreed? They should be able to interbreed and produce fertile offspring. They will not be able to interbreed and produce offspring because of hybrid breakdown. They will not be able to interbreed and produce offspring because of mechanical isolation. They should be able to interbreed and produce offspring, but the offspring may experience reduced hybrid fertility.Which of the following pieces of evidence could support the endosymbiotic theory if found to be true? Traces of peptidoglycan in the cytoplasm in eukaryotes Presence of rRNA in eukaryotes Presence of 80S ribosomes in eukaryotes The discovery of a unicellular eukaryote
- Which of the following statements concerning prokaryotes is TRUE? They have no nucleus and hence no DNA They have no Golgi apparatus They include bacteria, yeast, and protozoans They are all able to live on inorganic energy sources Both (b) and (c) are correctwhich of the following sentences are NOT correct about mitochondria: is found in all eukaryotic and prokaryotic cells is not found in some cells such as liver cells is generate most the cell's supply ATP O is a double membrane-bound organelle which of the following are NOT correct about prokaryotic organisms is reproduction by binary fission is have linear DNA is have flagella made of tubulin is have nuclear bodyAccording to the endosymbiotic theory, which of the following is NOT true about the evolution of life on earth? Eukaryotes and prokaryotes appeared at about the same time and evolved independently from each other. O None of the other four answers (all are true statements) Eukaryotes evolved from symbiotic prokaryotes living inside other prokaryotes Mitochondria and chloroplasts are in some ways similar to prokaryotes The first life on earth was simple organisms, similar to today's prokaryotes
- Archaea are so named because option1-their cell structure is thought to be more primitive than the cell structure of bacteria option2-they arose from the joining of members from the Archaea and Bacteria Domains. option3-many survive in extreme conditions thought to be similar to ancient earth option4-they are thought to be the first group of prokaryotes to evolve on earthIn the domain system of classification, prokaryotes are divided into two domains: Bacteria and Archaea. The two domains differ in all BUT one feature. Which feature do they have in common? Question options: They both have identical cell walls. They both have prokaryotic cells. They both thrive in extreme environments. They both are able to live only under anaerobic conditions.Paramecia live mostly in freshwater and move with the use of structures called cilia. They utilize contractile vacuoles to expel water that enters the cell by osmosis. Euglena are unicellular organisms that use flagella for movement and chloroplasts for photosynthesis. They are found in freshwater and saltwater. Scientists have determined that Paramecia and Euglena are eukaryotes and not prokaryotes because they have
- Which of the following statements about the two domains of prokaryotes is NOT true? Group of answer choices the lipid composition of the plasma membrane in archaebacteria is different from eubacteria of the two groups, eubacteria are more closely related to domain eukarya eubacteria includes the proteobacteria, chlamydia and cyanobacteria both archaebacteria and eubacteria has cell wall but archaebacteria lack peptidoglycanA major difference between prokaryotes and eukaryotes is that prokaryotes Group of answer choices do not have a nucleus in their cells while eukaryotes do. have a nucleus in their cells while eukaryotes do not. have cell walls while eukaryotes do not. are not living organisms, while eukaryotes are. are autotrophs while eukaryotes are notArchaea are different from Eubacteria are different types of prokaryotes because... Archaea lack a nucleus Archaea are unicellular Archaea lack peptidoglycan in their cell wall Archaea do not have ribosomes