Question

When systematists study morphological or behavioral traits to reconstruct the evolutionary history of a group of animals, they assume that: a. similarities and differences in phenotypic characters reflect underlying genetic similarities and differences. b. the animals use exactly the same traits to identify appropriate mates. c. differences in these traits caused speciation in the past. d. the adaptive value of these traits can be explained. e. variations in these traits are produced by environmental effects during development.

Name: Problem 8, Chapter 24: Biology: The Dynamic Science
Uploaded: 2021-09-15T23:06:45-08:00
Duration: 1 min 47 s
Channel: Joanna Quigley

   When systematists study morphological or behavioral traits to reconstruct the evolutionary history of a group of animals, they assume that:
a. similarities and differences in phenotypic characters reflect underlying genetic similarities and differences.
b. the animals use exactly the same traits to identify appropriate
mates.
c. differences in these traits caused speciation in the past.
d. the adaptive value of these traits can be explained.
e. variations in these traits are produced by environmental effects during development.

Biology: The Dynamic Science

Peter J. Russell,… 4th Edition

Chapter 24, Problem 8

Instant Answer

Solved by Expert Joanna Quigley

09/15/2021

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This means we are looking at the physical characteristics and behaviors of these animals and trying to determine how they are related to each other. Show more…

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When systematists study morphological or behavioral traits to reconstruct the evolutionary history of a group of animals, they assume that: a. similarities and differences in phenotypic characters reflect underlying genetic similarities and differences. b. the animals use exactly the same traits to identify appropriate mates. c. differences in these traits caused speciation in the past. d. the adaptive value of these traits can be explained. e. variations in these traits are produced by environmental effects during development.

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Key Concepts

Phylogenetics

Phylogenetics is the study of the evolutionary relationships among species or groups of organisms, often depicted in a tree-like diagram. It involves using various lines of evidence, including morphological and genetic data, to infer the evolutionary history and connections between different organisms.

Genotype-Phenotype Relationship

The genotype-phenotype relationship is the concept that observable characteristics or traits (phenotypes), such as morphology and behavior, are influenced by the underlying genetic makeup (genotypes) of organisms. This assumption is crucial in evolutionary studies because it allows researchers to infer genetic similarities and differences from observable traits, which in turn helps in reconstructing evolutionary relationships.

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