Campbell Essential Biology (6th Edition) - standalone book
6th Edition
ISBN: 9780133917789
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece, Kelly A. Hogan
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 5SQ
Why are the top predators in food chains most severely affected by pesticides such as DDT?
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Students have asked these similar questions
“The pyramid of energy is always upright” states that
A)The energy conversion efficiency of herbivores is better than carnivores.
B)The energy conversion efficiency of carnivores is better than herbivores
C)Producers have the lowest energy conversion efficiency
D)Energy conversion efficiency is the same in all trophic levels
Why do the top predators in the food web receive the least amount of energy from the animals they eat?
A Food Web
om
Eage
Pythan
Wolf
Rat
Dragonfly
Thrush
Frog
Butterfly
Fruit Fly
Grasshopper
Mangoes
Corn
A Flowering Plant
Lavenders
Look at the food web above to answer the following questions.
1. Which organisms are the producers in this food web?
2. Which organism is an example of a primary consumer?
3. Which organism is an example of a tertiary consumer?
Chapter 20 Solutions
Campbell Essential Biology (6th Edition) - standalone book
Ch. 20 - Prob. 1SQCh. 20 - According to the concept of competitive exclusion,...Ch. 20 - Prob. 3SQCh. 20 - Prob. 4SQCh. 20 - Why are the top predators in food chains most...Ch. 20 - Over a period of many years, grass grows on a sand...Ch. 20 - According to the energy pyramid, why is eating...Ch. 20 - Local conditions, such as heavy rainfall or the...Ch. 20 - Prob. 9SQCh. 20 - Prob. 10SQ
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- At which point in the trophic pyramid is the greatest arount (not percentage) of energy lost? A) Between the primary producers and the primary consumers B) Between the primary consumers and the secondary consumers C)Between the secondary consumers and the tertiary consumers D) Between the secondary consumers and the primary producersarrow_forwardWho acts as "nature's scavengers"?arrow_forwardWhich of the following represents how nitrogen will move through the food chain? * O secondary consumer-> producers-> primary consumers producers-> primary consumers-> secondary consumers O tertiary consumers--> secondary consumers-> primary consumers-> producers O producers-> secondary consumers-> tertiary consumersarrow_forward
- Name the apex consumers in the food web shown here.arrow_forwardWhich of the following is an example of a secondary consumer? a)A spider that eats herbivorous insects b)A plant that uptakes nutrients from the soil c)A cow that eats grass d)A shark that eats a tuna that eats other fisharrow_forwardWhat are some advantages of being part of a food web rather than a food chain?arrow_forward
- 3) Below is a simple food chain that represents the food chain in Yellowstone National Park in the Western Region of the United States. Use this image to help you answer the questions below a) Why are so few apex predators supported in this food chain compared to the number of producers or primary consumers? b) If someone accidently introduced a poison like DDT into this food chain what type of effects would you expect to see to happen to animals higher in the food chain over animals that are on the lower end of the food chain? c) Wolves although at the top of the food chain, are important in controlling this entire system. What type of species is that called and why are they so important?arrow_forwardWhich organism represents the secondary consumer? Which organism represents the producer? Zooplankton Anchovy Salon Sea lionarrow_forwardIn a simple food chain, a frog eats insects, and a snake eats the frog. The primary role of the frog in the food chain is _____________________. a) to be a source of energy b) to find a space to live c) to start a new species d) to make an ecosystemarrow_forward
- The bluestreak cleaner wrasse is a fish that inhabits coral reefs. These fish eat parasites off of larger fish. The larger fish benefit from increased health. In return, the wrasse receive nutrition and protection from the larger fish. What type of interaction is this? a) Predation b) Mutualism c) Parasitism d) Commensalismarrow_forwardSEAWEED ORCA SQUID MACKEREL HUMAN TUNA RED ALGAE PHYTOPLANKTON MILYFISH Using the food web to the left, complete the following: Name two primary producers: What are the two apex predators? In the space provided, create a food chain that contains 4 organisms:arrow_forwardThis trophic level includes carnivores that eat herbivores Tertiary consumer Primary consumer Primary producer Secondary consumerarrow_forward
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