Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 13, Problem 2RQ
The first forms of life on Earth were thought to be_____.
a. single-celled plants
b. prokaryotes
c. insects
d. large animals such as dinosaurs
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The first forms of life on Earth were thought to be_________. a. single-celled plants b. prokaryotes c. insects d. large animals such as dinosaurs
The first forms of life on Earth were ________. a. plants b. microorganisms c. birds d. dinosaurs
Which 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.
Chapter 13 Solutions
Concepts of Biology
Ch. 13 - Figure 13.6 Which of the following statements is...Ch. 13 - The first forms of life on Earth were thought to...Ch. 13 - The first organisms that oxygenated the atmosphere...Ch. 13 - Which of the following consist of prokaryotic...Ch. 13 - Prokaryotes stain as Gram-positive or...Ch. 13 - Prokaryotes that obtain their energy from chemical...Ch. 13 - Bioremediation includes _____. a. the use of...Ch. 13 - What event is thought to have contributed to the...Ch. 13 - Mitochondria most likely evolved from_______. a. a...Ch. 13 - Protists with the capabilities to absorb nutrients...
Ch. 13 - Which parasitic protist evades the host immune...Ch. 13 - Which polysaccharide is usually found in the cell...Ch. 13 - What term describes the close association of a...Ch. 13 - Explain the reason why the imprudent and excessive...Ch. 13 - Your friend believes that prokaryotes are always...Ch. 13 - Describe the hypothesized steps in the origin of...Ch. 13 - How does killing Anopheles mosquitoes affect the...Ch. 13 - Without treatment, why does African sleeping...Ch. 13 - Why can superficial mycoses in humans lead to...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Two muscles in the back of the leg pull upward on the Achilles tendon, as shown in Figure 4.40 (These muscles a...
College Physics
If someone at the other end of a room smokes a cigarette, you may breathe in some smoke. The movement of smoke ...
Campbell Essential Biology with Physiology (6th Edition)
In Drosophila, Dichaete (D) is a mutation on chromosome III with a dominant effect on wing shape. It is lethal ...
Concepts of Genetics (11th Edition)
What is anatomical position?
Human Anatomy & Physiology (2nd Edition)
Body, Heal Thyself The precision of mitotic cell division is essential for repairing damaged tissues like those...
Biology: Life on Earth with Physiology (11th Edition)
QUANTITATIVE Punnett Squares as Genetic Tools. The genetic characters of seed color (where Y is the allele for ...
Becker's World of the Cell (9th Edition)
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
- What event is thought to have contributed to the evolution of eukaryotes? a. global warming b. glaciation c. volcanic activity d. oxygenation of the atmospherearrow_forwardThe earliest cellular life forms appear to have been_____. A. Bacteria B. One-celled plants C. On-celled animals D. Viruses E. Mammalsarrow_forwardWhat event is thought to have contributed to the evolution of eukaryotes? a. global warming b. glaciation c. volcanic activity d. oxygenation of the atmospherearrow_forward
- Photosynthesis carried out by one group of ________ resulted in Earths first increase in atmospheric oxygen levels. a. archaea c. protists b. bacteria d. algaearrow_forwardA rise in oxygen in Earths air and seas set the stage for the evolution of _______. a. aerobic respiration c. photosynthesis b. fermentation d. sexual reproductionarrow_forwardWhich of the following was likely MOST important for life to begin existing on Earth? A. sunlight B. DNA C. a source of oxygen D. a source of energyarrow_forward
- The endosymbiotic theory explains the:a. origin of the first prokaryotic cells.b. origins of mitochondria and chloroplasts in eukaryotes.c. evolutionary relationship between animals, plants, and fungi.d. method of reproduction in protists.arrow_forwardThe first single-celled organisms on Earth probably evolved (a) 3,700 years ago (b) 3.7 million years ago (c) 3.7 billion years ago (d) We have no idea when the first life on Earth appeared.arrow_forwardThe fossil record shows how ________________ a. dead organisms were buried b. organisms have changed over time and when organisms lived on Earth c. parents of the offsprings d. evolution occurredarrow_forward
- Scientists think that terrestrial life probably originated in Earth's oceans becauseChoose one: A. energy was available there. B. all of the chemical pieces were there. C. All of the possible answers are correct. D. the earliest evidence for life on Earth comes in ocean-dwelling forms.arrow_forwardChloroplasts of green algae evolved from_____ . a. cyanobacteria b. archaea c. red algaearrow_forwardMitochondria likely originated froma. archaea.b. invaginations of the cell membrane.c. bacteria.d. chloroplastsarrow_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