Which statement best explains why a third domain, Archaea, was added to the original two domains of Bacteria and Eukarya? Question 10 options: Scientists discovered that eukaryotes are unicellular. Scientists discovered that some prokaryotes live in extreme environments. Scientists discovered that eukaryotes have cell walls. Scientists discovered that some prokaryotes have cell walls.

Which statement best explains why a third domain, Archaea, was added to the original two domains of Bacteria and Eukarya? Question 10 options: Scientists discovered that eukaryotes are unicellular. Scientists discovered that some prokaryotes live in extreme environments. Scientists discovered that eukaryotes have cell walls. Scientists discovered that some prokaryotes have cell walls.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter1: The Science Of Biology

Section: Chapter Questions

Problem 6SA: Bacteria, Archaea and Eukarya are three _____________ .

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Choose one prokaryote (bacteria or archaea) AND one protest. You can choose a species or more general taxonomic group of interest. Then address the following questions for each. 1. What does the organism look like? Describe or include an image. 2. How does it obtain energy? 3. How does it reproduce? 4. What are its close relatives in the tree of life? 5. Why is it important from a human perspective?
They have no nucleus and are the most numerous organisms on Earth (2pts) Question 48 - They have no nucleus and are the most numerous organisms on Earth Select bacteria as your answer bacteria Select fungi as your answer fungi Select archaea as your answer archaea Select animals as your answer animals
In 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.
Read this passage from the lesson and answer the questions that follow. Domains The six-kingdom system didn't show that all four eukaryote kingdoms are more closely related to each other than to the two bacteria kingdoms. It also didn't show that the two bacteria kingdoms are as different from each other as they are from the eukaryote kingdoms. To show these similarities and differences, a new taxon, called the domain, was introduced. It was defined as a taxon higher than the kingdom. The Three-Domain System In 1990, a new classification system was introduced that contained three domains: Bacteria, Archaea, and Eukarya. The Bacteria domain was formerly the Eubacteria kingdom, and the Archaea domain was formerly the Archaebacteria kingdom. The Eukarya domain includes all four eukaryote kingdoms: plants, animals, protists, and fungi. The three-domain system emphasizes the similarities among eukaryotes and the differences among eukaryotes, bacteria, and archaea. By using domains, these…
Which is NOT true of bacteria? Question 33 options: Some can photosynthesize. They are prokaryotes. Some lack cell walls. They are nucleated.
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 earth
The two answer choices are: 1. Eukarya 2. Bacteria
Bacteria, Archaea and Eukarya are three _____________ .
Which domain of life has the most types of DNA polymerases? Question 13 options: Eukarya Eminent Bacteria Archaea
Scientists have discovered a new, unknown single-celled organism. They decide to compare the DNA sequence of the ubiquitin gene of the unknown organism with classified organisms. The ubiquitin gene is a gene found in some variation in all cells. Which organism shares the MOST recent common ancestor with the unknown organism? Question options: Yeast Green Algae Halophile Streptococcus
Which of the following correctly describes the theory of endosymbiosis. Question 9 options: Mitochondria evolved from a genetic mutation within an ancestral prokaryote. An ancestral prokaryote engulfed another prokaryote that eventually evolved into the organelles we recognize as mitochondria and chloroplasts. Some species of prokaryotes can pick up plasmids left behind by other prokaryotes.
Which of the following is a major cause of the size limits for certain types of cells? Question 38 options: the evolution of larger cells after the evolution of smaller cells the difference in plasma membranes between prokaryotes and eukaryotes the evolution of eukaryotes after the evolution of prokaryotes the need for a surface area of sufficient area to allow the cell's function

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	Scientists discovered that eukaryotes are unicellular.
	Scientists discovered that some prokaryotes live in extreme environments.
	Scientists discovered that eukaryotes have cell walls.
	Scientists discovered that some prokaryotes have cell walls.