Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 55.7, Problem 1CS
Core Skill: Modeling The goal of this modeling challenge is to draw a set of bar graphs illustrating the relative body sizes of males and females in different mating systems: monogamy, polygyny, and polyandry. You should be able to explain your graphical model.
Modeling Challenge: Draw a bar graph with three sets of two bars each to illustrate what you think are the relative body-size ratios of males:females in monogamous, polygynous, and polyandrous species, and explain your graph. Scale the y-axis from 0 to 2.0, with 1.0 representing equal body sizes for the two sexes.
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Multiple choice
Fewer than 3% of animals engage in direct care of their offspring. When might the benefits of parental care outweigh the costs?
Choose the correct option and Explain why you choose that answer.
a) All of the options.
b) Species that feed on resources with high foraging effort (e.g., smaller insect prey versus larger insect prey).
c) Species with highly immature young, for instance those with large brains that have long learning periods.
d) Species with limited breeding opportunities.
Please solve step by step THANKS!
A researcher when studying insects of the genus Protenor, crossed females with normal wings and short antennae, with males with short wings and long antennae. In the first generation, he found that all insects had normal wings and long antennae; Therefore, when obtaining the second generation of a count of 460 insects, 50 presented short wings and short antennae; 135 with normal wings and short antennae; 165 with short wings and long antennae; and 465 with normal wings and long antennae. According to the information, determine:a) The genotype of the F1 and the parentsb) How many pairs of genes are involved in the crossc) How is the inheritance of these characters,d) Obtain the genotypic and phenotypic relationshipe) If the test cross is made, what genotypic and phenotypic relationship is expected
ACTIVITY 9.2: Essay.
Directions: Read the situation and identify the points of Darwin’s natural selection. There are 2 types of worms: worms that eat at night (nocturnal) and worms that eat during the day (diurnal). The birds eat during the day and seem to be eating ONLY the diurnal worms. The nocturnal worms are in their burrows during this time. Each spring when the worms reproduce, they have about 500 babies but only 100 of tthese 500 ever become old enough to reproduce.A. Describe variations in populations. ____________________________________________B. Describe how offspring inherit surviving parent’s traits. __________________________________________________________________________________________________________C. Describe how more offspring are produced than survive. _________________________________________________________________________________________________________D. Describe how some variations are favorable. ___________________________________E. How will this population…
Chapter 55 Solutions
Biology
Ch. 55.1 - Prob. 1CCCh. 55.1 - Core Skill: Connections Look ahead to Figure...Ch. 55.1 - Prob. 2CSCh. 55.1 - Cuckoos lay their eggs in other birds nests, so...Ch. 55.2 - Prob. 1CCCh. 55.2 - Prob. 1EQCh. 55.2 - Prob. 2EQCh. 55.2 - Prob. 3EQCh. 55.2 - Prob. 2CCCh. 55.5 - Prob. 1CC
Ch. 55.6 - Prob. 1CCCh. 55.7 - Core Skill: ModelingThe goal of this modeling...Ch. 55 - Prob. 1TYCh. 55 - Prob. 2TYCh. 55 - Prob. 3TYCh. 55 - Prob. 4TYCh. 55 - Prob. 5TYCh. 55 - Prob. 6TYCh. 55 - Prob. 7TYCh. 55 - Prob. 8TYCh. 55 - In ants, which employ a haplodiploid mating...Ch. 55 - Prob. 10TYCh. 55 - Prob. 1CQCh. 55 - Prob. 2CQCh. 55 - Prob. 3CQCh. 55 - Prob. 1COQCh. 55 - Prob. 2COQ
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