The oldest unquestioned fossil cells (Choose any/all that apply/are correct.) Group of answer choices were prokaryotes (cells without a discrete nucleus) were found in the 3.2 byo Apex Chert were found in the 1.9 byo Gun Flint Chert were eukaryotes (cells with a discrete nucleus) were intertwined filaments of cells

The oldest unquestioned fossil cells (Choose any/all that apply/are correct.) Group of answer choices were prokaryotes (cells without a discrete nucleus) were found in the 3.2 byo Apex Chert were found in the 1.9 byo Gun Flint Chert were eukaryotes (cells with a discrete nucleus) were intertwined filaments of cells

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter16: Evidence Of Evolution

Section: Chapter Questions

Problem 6SQ: Which of the following is a fossil? a. an insect encased in 10-millon-year-old tree sap b. a woolly...

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The transition of a prokaryotic cell to eukaryotic cell is no doubt a " major evolutionary transition". Light up the statement.
DRAW IT Recent evidence indicates that the root ofthe eukaryotic tree may lie between a clade that includesunikonts and excavates, and all other eukaryotes. Drawthe tree suggested by this result.
The endosymbiotic theory argues that prokaryotes become some of the organelles of early eukaryotic cells. All of the following support this hypothesis Except: A. The mitochondria and chloroplasts have their own DNA and are nearly idential to some free-living prokaryotes b. Mitochondria and chloroplasts are nearly idential to some free-living prokaryotes. c. Mitochondria and chloroplasts have their own DNA d. The vacuoles can come and go across the plasma membrane
Which bits of evidence would convince you that life originated as early as 3.2 bya? a. You look at a microfossil under a scanning electron microscope and it is the same shape as a cell. b. A high-quality transmission electron micrograph of a fossil cell reveals cellular compartments, including a possible nucleus. c. Potassium dating of a fossil containing a possible cell indicates that the fossil is 3.2 billion years old. d. Using transmission and scanning electron microscopy, you find evidence of a carbon-based material in what appears to be a cell wall of a fossil isotopically dated as 3.2 billion years old.
One piece of supporting evidence for the endosymbiotic theory for the origin of eukaryotic cells is thata. eukaryotic cells have internal membranes.b. mitochondria and chloroplasts have their own DNA.c. Golgi bodies and endoplasmic reticulum were present in ancestral cells.d. the nuclear membrane could only have come from another cell.
Tell whether the statement is true or false. 1. The endosymbiont hypothesis state that prokaryotes evolved into eukaryotic cells 2. Eukaryotes contain organelles such as mitochondria and chloroplast 3. Organisms develop by a process known as spontaneous generation 4. Bacteria is an example of prokaryoric cwll 5. Prokaryote is a type of cell that has no nucleus and no cell membrane but has cytoplasm
One of the simplest definitions of a life-form is anything with the capacity to reproduce and regulate itself. Before life began, the complex organic, or hydrocarbon-bearing, molecules that makeup RNA and DNA, the building blocks of life, must have formed. No one knows exactly how life is formed from these molecules, but many ideas have been put forward. As you enter this area, go toward the large video screen on the right and explore the “Life at the hydrothermal Vents” label deck. Some scientists theorize that life begins at deep-sea vents. Find three lines of evidence to support this claim.
The endosymbiotic theory explains the origins of which of thefollowing components of a eukaryotic cell?a. mitochondriab. chloroplastsc. internal membranesd. All of these are correct
Which of the following statement is not a line of evidence supporting the endosymbiotic theory for the evolution of eukaryotes? Question 8 options: Mitochondria and plastids have their own circular DNA which is similar to bacterial DNA. Mitochondria and plastids can both live and reproduce outside of a cell. Mitochondria and plastids are separated from the rest of the cell by a membrane. Mitochondria and plastids reproduce independently of the rest of the cell.
Question: If the multicellular organism arise from the unicellular organisms , can you tell that all species/organisms are related to one another? -Kindly expound your answer please, thank you so much!
This chapter shows a phylogenetic tree for the three domains of life, which is based on DNA sequence data for rRNA and other genes. Which of the following answers concerning the phylogenetic relationships found within this tree is incorrect? View Available Hint(s)for Part A Euryarcheotes are found in the Archaea Diatoms, Tubulinids, and Euglenozoans belong to the domain Eukarya Forams, Fungi, and Chlamydias belong to the domain Eukarya. Spirochetes belong to the domain Bacteria Ciliates, Red Algae, and Plants belong to the domain Eukarya.
Here is the question: What was the likely source of the raw material incorporated into the first life forms? I believe it is carbon, but I don't know why it is carbon. What I mean is, why is carbon considered the thing that makes something alive? Why are eukaryotes and prokaryotes simply considered alive just because they have carbon. Would that mean that carbon is alive because carbon has carbon? I would appreciate an anwser because I'm really trying to understand everything I run across. I love educating myself and I'm on a quest for knowledge. Thanks guys!