What is an R organism?
Organisms whose life history is subject to r-selection are often referred to as r-strategists or r-selected. Organisms that exhibit r-selected traits can range from bacteria and diatoms, to insects and grasses, to various semelparous cephalopods and small mammals, particularly rodents.
What are r strategists examples?
Examples of r-strategist species are dogs, cats, insects, and fish.
What is the difference between R and K strategist species?
What are K and r-selected species? K-selected species are those that are larger, have long lifespans, produce few young at a time, and exhibit logistic growth. R-selected species are those that have shorter lifespans, are generally smaller, produce many young, and exhibit exponential growth.
Which organism would be considered an R strategist?
R-selected organisms, those emphasizing a fast growth rate, high number of offspring, include rabbits, bacteria, salmon, plants such as weeds and grasses, etc.
What does R stand for in R selection?
reproduction
r-selection: On one extreme are the species that are highly r-selected. r is for reproduction. Such a species puts only a small investment of resources into each offspring, but produces many such low effort babies. Such species are also generally not very invested in protecting or rearing these young.
What is meant by r-selected species?
r-selection: On one extreme are the species that are highly r-selected. r is for reproduction. Such a species puts only a small investment of resources into each offspring, but produces many such low effort babies. Such species are also generally not very invested in protecting or rearing these young.
What does R mean in biology?
r is for reproduction. Such a species puts only a small investment of resources into each offspring, but produces many such low effort babies. Such species are also generally not very invested in protecting or rearing these young. Often, the eggs are fertilized and then dispersed.
What does R stand for science?
R is an abbreviation for radical, when the term radical applied to a portion of a complete molecule (not necessarily a free radical), such as a methyl group.
What does the R mean in functional groups?
Rest of the
The letter R is used in molecular structures to represent the “Rest of the molecule”. It consists of a group of carbon and hydrogen atoms of any size. It is used as an abbreviation since a group of carbon and hydrogen atoms does not affect the functionality of the compound.
What do R groups determine?
The R group determines the characteristics (size, polarity, and pH) for each type of amino acid. Peptide bonds form between the carboxyl group of one amino acid and the amino group of another through dehydration synthesis. A chain of amino acids is a polypeptide.
What is an R group in proteins?
The “R” groups come from the 20 amino acids which occur in proteins. The peptide chain is known as the backbone, and the “R” groups are known as side chains. Note: In the case where the “R” group comes from the amino acid proline, the pattern is broken.