BIOLOGY
12th Edition
ISBN: 9781264839698
Author: Raven
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 25, Problem 3A
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Choose the best below ?
Which of these steps probably occurred first in the chemical andbiological evolution of life?
a. The cell membrane of a protobiont formed.b. Formation of the first organic moleculesc. The genetic material was RNA.d. Simple organic monomers formed from inorganic materials.
Which phylogenetic model proposes that all three domains of life evolved from a pool of primitive prokaryotes? a. tree of life b. web of life c. ring of life d. network model
In which type of rock are you most likely to find a fossil? a. basalt, a dark, fine-grained volcanic rock b. limestone, composed of sedimented calcium carbonate c. slate, a volcanically melted and cooled shale d. granite, which forms by crystallization of magma cooling below Earth’s surface
Chapter 25 Solutions
BIOLOGY
Ch. 25.1 - Describe the history of the Earth.Ch. 25.1 - Understand the relationship between geological...Ch. 25.2 - Contrast todays atmosphere with the likely...Ch. 25.2 - Prob. 2LOCh. 25.3 - Prob. 1LOCh. 25.4 - Prob. 1LOCh. 25.4 - Prob. 2LOCh. 25.5 - Compare and contrast the evolution of the...Ch. 25.5 - Discuss the types of cell specialization necessary...Ch. 25 - The Miller-Urey experiment demonstrated that a....
Ch. 25 - Plate tectonics can contribute to a. volcanoes and...Ch. 25 - Identify which of the following statements is...Ch. 25 - Which of the following events occurred first in...Ch. 25 - Fossil data indicate that a. life originated 4...Ch. 25 - A global glaciation would be unlikely to occur if...Ch. 25 - Although we do not know how early life arose, the...Ch. 25 - Which bits of evidence would convince you that...Ch. 25 - During which tunes would you expect that...Ch. 25 - The chloroplasts of brown algae a. have a...Ch. 25 - Vascular plants sequestered large amounts of CO2...Ch. 25 - Synthesizing what you have learned in this...Ch. 25 - Prob. 3S
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which is a piece of evidence that supports the endosymbiotic theory? Select all that apply. (Group of answer choices) A. many bacteria are resistant to antibiotics B. eukaryotic cells have cell membranes C. mitochondria have their own DNA D. chloroplast DNA is more similar to cyanobacteria DNA than eukaryotic DNA E. ribosomes are present in eukaryotic cells F. mitochondria must divide to multiply, cells can't build themarrow_forwardWhat is the term for bits of rock and dirt? O A. Mesozoic O B. Half-life O c. Sediment O D. Radiometricarrow_forwardWhich of these steps probably occurred first in the chemical andbiological evolution of life?a. The cell membrane of a protobiont formed.b. The first organic molecules formed.c. The original genetic material was RNA.d. Simple organic monomers formed from inorganic materials.arrow_forward
- On a phylogenetic tree, which term refers to lineages that diverged from the same place? a. sister taxa b. basal taxa c. rooted taxa d. dichotomous taxaarrow_forwardWhich of the following is an accurate point that supports the idea that the earliest protocells relied first on RNA (not DNA) as inherited information? A. RNA is composed of lipids, and lipids were present on early Earth before the nucleotides that compose DNA were B. RNA is a monomer (unlike DNA), so it is simpler and more likely to have been used by these simple protocells C. DNA would have been too large to fit into the small protocells, but RNA was small enough to fit D. RNA can serve dual roles as both genetic information storage and an enzyme (but DNA cannot do both) ..arrow_forwardA unicellular organism has a cell wall, a nucleus, chloroplasts, and several flagella. Which classification best matches this organism? O A. prokaryotic eubacteria O B. eukaryotic protist C. prokaryotic archaebacteria O D. eukaryotic plantarrow_forward
- what is a mold? A. the imprints from an organism can be a shell or the skin of an animal B. Molds fill in with sediment that hardens into rock. C. naturally preserved remains D. Organisms preserved in materials such as amberarrow_forwardCan you answer all the parts of this question about this picture A: What order do these organisms belong to? B:What is the structure denoted by the green arrow? (Hint: It is the oldest part of the shell)arrow_forwardSince 1735, the Linnaean classification system has been the basic system for all taxonomy in biology. Which statement best explains the reason for changing how organisms are classified today? A. Organisms are evolving at a faster rate than in the past B. More diverse and complex organisms are being discovered C.  There are more organisms today than there were in the past D. New information about the genetics of species is being discoveredarrow_forward
- Which best describes a branch point in a phylogenetic tree? a. a hypothesis b. new lineage c. hybridization d. a matingarrow_forwardWhich of the following did Stanley miller place in the experimental system to show that organic monomers could have risen from inorganic molecules on the early Earth? A. Only RNA B. Microspheres C. Purines and pyrimidines D. All of these are correctarrow_forwardScorpions occupy every continent except Antarctica, and all scorpionsfluoresce under ultraviolet light. What do these observations mostlikely suggest about the origin of scorpion fluorescence?a. The common ancestor of scorpions fluoresced.b. Scorpion fluorescence evolved independently on each continent.c. Scorpion fluorescence is a vestigial characteristic.d. Scorpion fluorescence evolved recently.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Fossils & Evidence For Evolution | Evolution | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=iYr3sYS9e0w;License: Standard YouTube License, CC-BY
Dig In To Paleontology; Author: SciShow Kids;https://www.youtube.com/watch?v=1FjyKmpmQzc;License: Standard YouTube License, CC-BY