Concept explainers
According to the big bang theory, _______.
- a. the universe expanded out from a single point
- b. Earth and our sun formed simultaneously
- c. carbon and oxygen were the first elements to form
- d. all of the above
Concept introduction: The big bang theory is a cosmological model for how the the universe existed in the earliest known time, through subsequent large scale evolution. It explains the way in which the universe expanded from very high density and high temperature state. It tells about the abundance of light elements, the cosmic microwave background, large scale structure, and Hubble’s law.
Answer to Problem 1SQ
Correct answer: According to the big bang theory, the universe expanded from a single point. Therefore, option a. is the correct answer.
Explanation of Solution
Reason for the correct answer:
According to the big bang theory, the universe began in a single instant. The universe began about 13 to 15 billion years ago. In a single instant, all the existing matter and energy suddenly appeared after an explosion.
Option a. is given as “the universe expanded from a single point”. As the universe expanded from a single point according to the big bang theory, option a. is correct.
Reasons for the incorrect answers:
Option b. is given as “Earth and our sun formed simultaneously”.
According to the big bang theory, the Earth and the sun had not formed simultaneously. Therefore, option b. is an incorrect answer.
Option c. is given as “carbon and oxygen were the first elements to form”.
Simple elements such as hydrogen and helium formed initially, according to the big bang theory. Therefore, option c. is an incorrect answer.
Option d. is given as “all of the above”.
According to the big bang theory, the Earth and sun had not formed instantaneously and carbon and oxygen were not the first elements formed. Therefore, option d. is an incorrect answer.
Hence, options b., c., and d. are incorrect answers.
Want to see more full solutions like this?
Chapter 19 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
- Identify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forwardPlease answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forward
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781337408332Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning