Campbell Biology In Focus
Campbell Biology In Focus
2nd Edition
ISBN: 9780134203072
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
bartleby

Concept explainers

Question
Book Icon
Chapter 42, Problem 1TYU
Summary Introduction

Introduction:

The relationship among living organisms related to energy sources is organized into different trophic levels. Organisms that utilize the sunlight energy to produce their food are known as producers. Organisms that obtain their food from the primary producers are known as primary consumers. Further, organisms that depend on the primary consumers for their food requirements are known as secondary consumers. The detritivores or decomposers are organisms that obtain their food from the dead and decaying matter.

Expert Solution & Answer
Check Mark

Answer to Problem 1TYU

Correct answer:

The zooplankton is incorrectly matched with its tropic level. As the zooplankton is a detritivore, it can be considered as a primary or a secondary consumer. Therefore, option (C) is correct.

Explanation of Solution

Reasons for the correct statement:

Zooplanktons are a group of organisms and are detritivore in nature. They feed on other organisms for the requirement of food. They mainly feed on bacterioplankton and phytoplankton. The primary producers are referred to as organisms, which prepare food on their own.

Option (C) is given as “zooplankton-primary producer”.

“The zooplankton is matched with primary producer”; hence, it the correct answer.

Hence, option (C) is correct.

Reasons for the incorrect statements:

Option (A) is given as “cyanobacterium—primary producer”.

The cyanobacterium is the aquatic bacterium that performs the process of photosynthesis to obtain its energy. The cyanobacterium is included in the category of the primary producer. Hence, it is the wrong answer.

Option (B) is given as “grasshopper—primary consumer”.

The grasshopper is an organism that feeds on plants. It is a primary consumer. Hence, it is the wrong answer.

Option (D) is given as “fungus—detritivore”.

The fungal species fall into the category of decomposers or detritivores. Hence, it is the wrong answer.

Hence, options (A), (B), and (D) are incorrect.

Conclusion

The zooplankton feeds on dead organic matter and small organisms, which perform photosynthesis, like phytoplankton. Hence, the zooplankton is a detritivore, primary, or a secondary consumer.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Molecular Biology Please help with question. thank you You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold 6. Mutations in the promoter that prevent binding of RNA polymerase 7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase
Molecular Biology Please help and there is an attached image. Thank you. A bacteria has a gene whose protein/enzyme product is involved with the synthesis of a lipid necessary for the synthesis of the cell membrane. Expression of this gene requires the binding of a protein (called ACT) to a control sequence (called INC) next to the promoter. A. Is the expression/regulation of this gene an example of induction or repression?Please explain:B. Is this expression/regulation an example of positive or negative control?C. When the lipid is supplied in the media, the expression of the enzyme is turned off.Describe one likely mechanism for how this “turn off” is accomplished.
Molecular Biology Please help. Thank you. Discuss/define the following:(a) poly A polymerase (b) trans-splicing (c) operon
Knowledge Booster
Background pattern image
Biology
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Aquaculture Science
Biology
ISBN:9781133558347
Author:Parker
Publisher:Cengage
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Text book image
Science Of Agriculture Biological Approach
Biology
ISBN:9780357229323
Author:Herren
Publisher:Cengage