AP BIOLOGY

EVOLUTION

THE ORIGIN OF LIFE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In which of the domains would it be easiest to determine the phylogenetic relationships among organisms?
A
The Animalia are easiest because they are large enough that their morphological characteristics are clearly visible.
B
The Archaea are easiest because they are the most ancient and have the greatest amount of genetic variation among them.
C
The Bacteria are easiest because they have the smallest amounts of DNA which can be sequenced quickly.
D
The Eukaryotes are easiest because they tend not to share genetic material with each other except when they are reproducing sexually.
Explanation: 

Detailed explanation-1: -In which of the domains would it be easiest to determine the phylogenetic relationships among organisms? A. The Animalia are easiest because they are large enough that their morphological characteristics are clearly visible.

Detailed explanation-2: -Most modern systems of classification are based on evolutionary relationships among organisms – that is, on the organisms’ phylogeny. Classification systems based on phylogeny organize species or other groups in ways that reflect our understanding of how they evolved from their common ancestors.

Detailed explanation-3: -Examples of Kingdom taxonomic classification include Plants, Animals, Protists, Fungi, and Eubacteria. Based on the information, green algae does not come under the kingdom category, as it belongs to the smaller life forms called species.

Detailed explanation-4: -Within the domain Eukarya, there are four kingdoms: Protista, Fungi, Plantae, and Animalia. Organisms with similar characteristics are grouped within these broad kingdoms. Organisms are usually grouped together based on their unique characteristics.

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