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All lining organisms have 7 things in common:
1. Nutrition:
Taking in nutrients which are organic substances and mineral ions, containing raw materials and energy for growth and tissue repair, absorbing and assimilating them.
2. Excretion:
Removal from organisms of toxic materials, the waste products of metabolism and substances in excess.
3. Respiration:
Chemical reactions that break down nutrient molecules in living cells to release energy.
4. Sensitivity:
The ability to detect or sense changes in the environment and to make responses.
5. Reproduction:
Progresses that make more of the same kind of organism.
6. Growth:
The permanent increase in size and dry mass by an increase in number of cells, cell size, or both.
7. Movement:
An action by an organism or part of an organism that changes position or place.
The seven characteristics could be memorized by the term "Mrs. Gren":
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What are some common features that scientists use to classify organisms?
Scientists use common features such as body structure, genetic makeup, reproductive methods, and behavioral patterns to classify organisms into different groups or taxa. These features help to understand the relationships among different species and their evolutionary history.
How are evolution and clssifacation related?
Evolution and classification are related because classification systems are used to organize and categorize organisms based on their shared evolutionary history and similarities. Evolutionary relationships help scientists determine how organisms are related and classify them into groups that share common ancestry, reflecting the idea that organisms have evolved over time from common ancestors.
What is phylogenetic line?
An ancestor-descendent line; the sequence of ancestral taxa leading from some point in the ancestry through time to a specific taxon. For example, our complete phylogenetic line would include all taxa that are in the ancestry of both apes and humans as well as all taxa ancestral to modern humans from the time the human line split from the ape line.
How is cytochrome c used biochemical evidence for evolution?
Cytochrome c is a protein present in all aerobic organisms, and its sequence is highly conserved across species. By comparing the amino acid sequences of cytochrome c among different organisms, scientists can infer evolutionary relationships. The similarities and differences in cytochrome c sequences provide evidence for common ancestry and the process of evolution.
What two taxa make up a scientific name?
A scientific name consists of two taxa: the genus and the species.
The greater the number of taxa two organisms have in common the more closely related they are?
true
The groups in which carl linneaus placed organisms?
The answer is: taxa
Which taxa includes the largest amount of genetic diversity among plantlike organisms?
viridiplantae
What is the Simpson Coefficient?
C/N x 100 (where C is the # of taxa in common between two areas and N is the total # of taxa.
What does a chladogram show about evolution?
By showing the evolutionary relationships and emergency of ancestral and derived traits in taxa of organisms. Nested hierarchies of relatedness in organisms.
What is the smaller taxa that makes up an order?
The smaller taxa that makes up an order is called a family. In the biological classification hierarchy, the order is a higher taxonomic rank, and it is composed of one or more families, which in turn consist of genera. Each family groups together related organisms that share common characteristics.
Which of the following are problematic when the goal is to construct phylogenies that accurately reflect evolutionary history A monophyletic taxa B polyphyletic taxa C paraphyletic taxa?
Polyphyletic and paraphyletic taxa are problematic when the goal is to construct phylogenies that accurately reflect evolutionary history. These taxa do not accurately represent the evolutionary relationships between species and can lead to incorrect interpretations. Monophyletic taxa, on the other hand, are ideal for constructing phylogenies as they include all descendants of a common ancestor.
What are some common features that scientists use to classify organisms?
Scientists use common features such as body structure, genetic makeup, reproductive methods, and behavioral patterns to classify organisms into different groups or taxa. These features help to understand the relationships among different species and their evolutionary history.
What criteria are used to place organisms into the different taxa?
Organisms are placed into different taxa based on their shared characteristics, such as physical appearance, genetic makeup, and evolutionary history. Taxonomists consider traits like body structure, behavior, and biochemical processes to determine the relationships between different species and assign them to the appropriate taxonomic groups.
What is the Jaccard Coefficient?
C/(A+B-C) (where C is the number of taxa in common between two samples and A and B are the numbers of unique taxa found in each of the two samples).
What is the biggest taxa?
The biggest taxa in biological classification is the domain, which is the broadest category that encompasses all life forms. The three main domains are Bacteria, Archaea, and Eukarya.
Which level was first in the modern organization of taxa?
In the modern organization of taxa, or scientific classification, the first level is the species. This is the most specific level.
