BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
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Chapter 57.4, Problem 1CC
Summary Introduction
To determine: The type of control after applying fertilizer to a bush, which increases spider density on the bush.
Introduction: Bottom down and top-down controls are two control measures of a food web or chain. These control measures are applied in the food chain to regulate the number of species. If one of them gets affected, then the related ones also have an impact.
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What evidence would convince you that a grassland was experiencing top-down control versus bottom-up control?
There are two pots of honey (2 patches of habitat). In one pot there is 3 pounds of honey, and in the other there is 7 pounds of honey. A total of 20 bees arrive to eat honey. How many should reed from the pot with 7 pounds of honey if the bees select pots to feed from according to an "ideal free distribution"?
You are interested in determining the amount of fertilizer your lavender plants need to increase their growth. You get 5 pots of plain soil. You transplant one lavender plant into each pot and measure the height of the plant. You label each pot with letters A-E. A does not get any fertilizer, pot B gets 2mg of fertilizer, pot B gets 4 mg of fertilizer, pot C gets 6 mg of fertilizer, pot D gets 8 mg of fertilizer, and pot E gets 10 mg of fertilizer. For one month you water the plants the same amount and each plant receives the same amount of light. After one month you measure the plants again. The results of the experiment are below.
A. Write a testable hypothesis for this experiment.
B. Write a prediction based on your hypothesis.
C. What is the dependent variable?
D. What is the independent variable?
E. Do the results support or refute your hypothesis?
Results
Pot Initial Measurement (cm) Final Measurement (cm)
A 5.2…
Chapter 57 Solutions
BIOLOGY
Ch. 57.1 - Prob. 1CCCh. 57.1 - Prob. 2CCCh. 57.1 - Prob. 1EQCh. 57.1 - Prob. 2EQCh. 57.1 - Prob. 3EQCh. 57.2 - Prob. 1CCCh. 57.2 - Prob. 2CCCh. 57.2 - (a) A quahog clam, cless Bavalvia (b) A chlton,...Ch. 57.2 - Prob. 3CCCh. 57.2 - Prob. 2CS
Ch. 57.2 - Core Skill: Connections More than 4,500 species of...Ch. 57.3 - Prob. 1CCCh. 57.3 - Prob. 1CSCh. 57.4 - Prob. 1CCCh. 57.4 - Core Skill: Modeling The goal of this modeling...Ch. 57 - Prob. 1TYCh. 57 - Prob. 2TYCh. 57 - Prob. 3TYCh. 57 - In Lacks study of passerine birds in Britain,...Ch. 57 - Prob. 5TYCh. 57 - Prob. 6TYCh. 57 - Prob. 7TYCh. 57 - Prob. 8TYCh. 57 - Prob. 9TYCh. 57 - Prob. 10TYCh. 57 - Prob. 1CQCh. 57 - Prob. 2CQCh. 57 - Prob. 1COQCh. 57 - Prob. 2COQCh. 57 - Prob. 3COQ
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