Essential Environment: The Science Behind the Stories (5th Edition)
5th Edition
ISBN: 9780321984579
Author: Jay H. Withgott, Matthew Laposata
Publisher: PEARSON
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Question
Chapter 3, Problem 1TYC
To determine
The concept of natural selection and also to explain how it follows from a few common observation of nature.
Expert Solution & Answer
Answer to Problem 1TYC
Natural selection is a process that causes population to change over a period of time.
Explanation of Solution
Natural selection is a process of evolution in which organisms that are most adapted to their environment will mate each other to pass on their genes to next generation. Inherent characteristic in the generation makes the survival and reproductive success of organism in the environment.
Evolution involves change in allele frequency that involves gene flow through the exchange of genes among the population through interbreeding. If this gene flow occurs for a long term, it can reduce the genetic variation among the population and slow down the process of evolution.
Natural selection follows the common observation in nature, which are as follows;
1. Different individuals have different characteristics even if they are of same species; In term of fitness, appearance and functioning.
2. Some organisms reproduce a large number of offspring, in which only some of them make the survival to the maturity.
3. Continuous competition for reproduction, and survival among the individuals of a species in environment.
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Students have asked these similar questions
44) In periglacial environments, the layer of ground that thaws every summer and freezes every winter is called
A) frost layer
B) permafrost
C) active layer
D) discontinuous permafrost
Use the attached piezometer map to make your own, clean version of the map, and indicate the elevation of the water table at all piezometer locations.
Draw equipotential lines (lines of equal water table elevation) using regular intervals – creating a contoured map of the water table.
Determine the direction of groundwater flow based on the horizontal gradient. Label the areas of recharge and discharge directly on your map.
Flow lines: Draw flow lines on your water table map. The lines should be at right angles to the equipotential lines and extend from the recharge area to the discharge area.
Hydraulic Gradient, Specific Discharge (Darcy Flux), Average Linear Velocity:
Using your water table map, estimate an average hydraulic gradient between two locations, call them locations A and B, one at the eastern-most and a second at the western-most extent of your dataset (note the north arrow on the map).
Calculate the specific discharge, q, between the two locations. For this calculation…
Calculate all the values of table 1:
Q in (L/day)
Q out (L/day)
Residence time (days)
Please show all steps
Chapter 3 Solutions
Essential Environment: The Science Behind the Stories (5th Edition)
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Similar questions
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