Unit 4 List 1 Evolution
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
amino acid sequencing
he process of identifying the arrangement of amino acids in proteins and peptides.
analogous structure
features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature
anatomy
a field in the biological sciences concerned with the identification and description of the body structures of living things.
biochemical evidence
the amino acid sequence of proteins)
biogeography
the branch of biology that deals with the geographical distribution of plants and animals.
cladogram
diagrams which depict the relationships between different groups of taxa called “clades”
common ancestry
having descended from one ancestor. Sharing a recent common ancestor means that two or more species are closely related.
descent with modification
the idea that species change over time, give rise to new species, and share a common ancestor.
DNA sequencing
the general laboratory technique for determining the exact sequence of nucleotides, or bases, in a DNA molecule.
electrophoresis
a laboratory technique used to separate DNA, RNA or protein molecules based on their size and electrical charge.
embryo
Early stage in the development of humans and other animals or plants.
embryology
the study of development of an embryo from the stage of ovum fertilization through to the fetal stage.
evolutionary tree
a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.
fossil record
made up of all the fossils that have been found, along with their relative ages
homologous structure
similar physical features in organisms that share a common ancestor, but the features serve completely different functions.
homology
similarity of the structure, physiology, or development of different species of organisms based upon their descent from a common evolutionary ancestor.
paleontology
the study of the history of life on Earth as based on fossils.
phenotypic similarity
a measure of functional redundancy within homologous gene families.
phylogeny
a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.
phylogenetic tree
a diagram that represents evolutionary relationships among organisms.
vestigial structures
a feature that a species inherited from an ancestor but that is now less elaborate and functional than in the ancestor.
sedimentary layers adaptation
distinct strata of sediment that have accumulated over time, forming the Earth’s crust and providing a record of geological history.
behavior
the way in which one acts or conducts oneself, especially toward others.
competition
the activity or condition of competing.