A goal of modern taxonomy is to a. classify all organisms...

Name: Problem 8, Chapter 25: Biology
Uploaded: 2021-07-12T17:14:47-08:00
Duration: 5 min 24 s
Channel: Norma Kimmel
Description: A goal of modern taxonomy is to a. classify all organisms based on morphological similarities. b. classify all organisms into monophyletic groups. c. classify all organisms based solely on genetic similarities. d. determine the evolutionary relationships only between similar species. e. None of the above is a goal of modern taxonomy.

A goal of modern taxonomy is to a. classify all organisms based on morphological similarities. b. classify all organisms into monophyletic groups. c. classify all organisms based solely on genetic similarities. d. determine the evolutionary relationships only between similar species. e. None of the above is a goal of modern taxonomy.

A goal of modern taxonomy is to
a. classify all organisms based on morphological similarities.
b. classify all organisms into monophyletic groups.
c. classify all organisms based solely on genetic similarities.
d. determine the evolutionary relationships only between similar species.
e. None of the above is a goal of modern taxonomy.

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Modern Taxonomy

Modern taxonomy is the science of classifying organisms in a way that reflects their evolutionary relationships. It integrates evidence from various fields, including genetics, morphology, biochemistry, and ecology, to develop classification systems that mirror the natural history and common ancestry of organisms.

Monophyletic Groups

Monophyletic groups, also known as clades, are groups of organisms that include a common ancestor and all of its descendants. This concept is central to modern taxonomy because it ensures that classifications accurately reflect the evolutionary lineage and natural relationships among organisms.

Phylogenetics

Phylogenetics is the study of evolutionary relationships among organisms. It uses data from genetic, morphological, and other biological sources to construct evolutionary trees that depict how different species are related through common ancestry, which is a core principle in modern taxonomic classification.

Transcript

00:01 All right, so here we're going to address what is the goal of modern taxonomy? and taxonomy is classification.

00:17 Let me address the first thing here, which is classification based on morphological similarities.

00:33 Morphological similarities is based on what something looks like.

00:40 It's morph as its physical appearance.

00:45 So this is based on looks, which actually is not too terrible.

00:49 It sounds worse than it is because it can go a long way.

00:52 Remember, the reason things look the way they look is because of the proteins that make them and genes code for proteins.

01:00 It's a kind of an indirect way to see genetic similarities.

01:04 Linnaeus, who was the one who first classified everything, was basically basing it on the morphological.

01:12 Similarities.

01:14 So morphological similarities is actually the old way, the original way, the old system of classification.

01:27 That's not our goal of modern taxonomy.

01:31 What is the goal of modern taxonomy? the goal of modern taxonomy, it's based on systematics.

01:45 I forgot an s there.

01:46 Systematics.

01:47 What is systematic? well, it's looking at the different biological diversity based on evolution, on evolutionary relationships, on how close things are from one to the other...

Please give Ace some feedback