BIOLOGY
BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 20, Problem 2DA

Assuming that the values on the x-axis represent the final body size of different animals and that the y-axis represents egg-laying rate and survival once they reach that size, how many eggs would you expect a 12-mm water strider to lay? And a 15-mm strider?

Blurred answer
Students have asked these similar questions
You are studying the effect that the commonly used agricultural pesticide "Pestkill" that has been found in bodies of water has on the survival rate of eggs of dragonflies. How will you label your X and Y axes? Check all that apply. Pestkill concentration (mg)" as Y axis label, "percentage of eggs hatched in two weeks" as X axis label "Pestkill" as X axis label, "number of eggs" on Y axis "Pestkill" as Y axis label, "number of eggs" on X axis   "Pestkill concentration (mg)" as X axis label, "percentage of eggs hatched in two weeks" as Y axis label
Male parental care occurs in only 7% of fishes and amphibianspecies with internal fertilization but in 69% of species with externalfertilization. Propose an explanation for why this is so.
To conduct their experiment, the researchers collected L. peronii eggs from a natural stream.  After the eggs had hatched, tadpoles were raised in artificially constructed 2 L containers in a laboratory.  All containers were filled with 1 L of filtered tap water, and the water was changed every other day.  Thirteen tadpoles were placed in each container, and the tadpoles were exposed to a 12-hour light: 12-hour dark photoperiod.  All tadpoles were fed thawed spinach daily.  The researchers randomly placed the tadpoles into containers exposed to one of four treatments, with nine replicates of each treatment, as follows: Low UVBR (<6.0 kJ/m2), low temperature (15OC) Low UVBR (<6.0 kJ/m2), high temperature (26OC) High UVBR (>70.0 kJ/m2), low temperature (15OC) High UVBR (>70.0 kJ/m2), high temperature (26OC) The researchers recorded the number of tadpoles still alive out of the original 13 in a container (percent survival) at different time periods.  Their results at Week 4,…

Chapter 20 Solutions

BIOLOGY

Ch. 20.5 - Prob. 1LOCh. 20.5 - Prob. 2LOCh. 20.5 - Prob. 3LOCh. 20.6 - Define frequency-dependent selection, oscillating...Ch. 20.6 - Prob. 2LOCh. 20.7 - Define and contrast disruptive, directional, and...Ch. 20.7 - Prob. 2LOCh. 20.8 - Explain how experiments can be used to test...Ch. 20.9 - Prob. 1LOCh. 20.9 - Prob. 2LOCh. 20.10 - Prob. 2LOCh. 20 - If all white cats died, what proportion of the...Ch. 20 - Assuming that the values on the x-axis represent...Ch. 20 - Prob. 3DACh. 20 - Prob. 4DACh. 20 - Examine the index of copper tolerance on nonmine...Ch. 20 - Prob. 6DACh. 20 - Why are rare alleles particularly likely to be...Ch. 20 - Prob. 2IQCh. 20 - Prob. 3IQCh. 20 - Prob. 4IQCh. 20 - Prob. 5IQCh. 20 - Prob. 6IQCh. 20 - Prob. 7IQCh. 20 - Prob. 8IQCh. 20 - Prob. 9IQCh. 20 - Assortative mating a. affects genotype frequencies...Ch. 20 - When the environment changes from year to year and...Ch. 20 - Many factors can limit the ability of natural...Ch. 20 - Stabilizing selection differs from directional...Ch. 20 - Founder effects and bottlenecks are a. expected...Ch. 20 - Relative fitness a. refers to the survival rate of...Ch. 20 - For natural selection to result in evolutionary...Ch. 20 - Prob. 8UCh. 20 - In a population of red (dominant allele) or white...Ch. 20 - Genetic drift and natural selection can both lead...Ch. 20 - Prob. 3ACh. 20 - Prob. 4ACh. 20 - In Trinidadian guppies a combination of elegant...Ch. 20 - On large, black lava flows in the deserts of the...Ch. 20 - Based on a consideration of how strong artificial...
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
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Animal Adaptations for Kids, Learn about physical, life cycle, and behavioral adaptations of animals; Author: Learn Bright;https://www.youtube.com/watch?v=m2MibjJgyjs;License: Standard youtube license