Examlex
Why do some minerals have a fixed chemical composition and some have a range of compositions? Give an example of a mineral with a range of compositions.
Natural Selection
Natural selection is a mechanism that can lead to adaptive evolution, whereby differences in the phenotypes of individuals cause some of them to survive and reproduce more effectively than others and therefore outcompete them.
Synapomorphy
A characteristic or trait that is shared by two or more taxonomic groups and is derived from their most recent common ancestor, indicating a phylogenetic relationship.
Molecular Phylogeny
The analysis of the molecular structure of DNA, RNA, or protein sequences to determine genetic relationships and evolutionary histories among different species.
Amino Acids
Organic compounds serving as the building blocks of proteins, crucial for life and involved in various metabolic processes.
Q5: What other geological processes could have resulted
Q27: Texture of the rock is influenced by
Q28: What are pegmatites, and how do they
Q34: Completion <br>The basic building block of silicate
Q35: Most volcanoes are located in:<br>A) the Mediterranean
Q42: If hydraulic action and abrasion undercut headlands,
Q64: Which coal contains the most carbon and
Q79: A(n) _ occurs when the sea advances
Q84: How is the seismic-moment magnitude scale different
Q88: Why are metamorphic rocks difficult to date