In what selection individuals with both extreme forms of a trait are at a selective advantage?
Answer and Explanation: Individuals having extreme forms of characteristics generally are more favored than the intermediate forms is described in disruptive selection.
Is a trait shaped by natural selection that increases an organism’s reproductive success?
When a trait shaped by natural selection increases an organism’s reproductive success. A measure of the relative contribution an individual trait makes to the next generation. Species have evolved morphological adaptations that allow them to blend in with their environments.
Is a structural adaptations in which one organism copies the appearance of another for protection?
|a structural adaptation for an organism that provides protection for an organism by copying the appearance of another species
|a structural adaptation that enables an organism to blend with its surroundings
Which of the following is an accurate comparison of derived traits and ancestral traits?
They tend to produce fewer offspring than do others in the same environment. Which of the following is an accurate comparison of derived traits and ancestral traits? a. Derived traits result from artificial selection; ancestral traits result from natural selection.
What is disruptive selection in biology?
disruptive selection: (or diversifying selection) a mode of natural selection in which extreme values for a trait are favored over intermediate values. stabilizing selection: a type of natural selection in which genetic diversity decreases as the population stabilizes on a particular trait value.
Whats is natural selection?
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
What is selection in genetics?
selection, in biology, the preferential survival and reproduction or preferential elimination of individuals with certain genotypes (genetic compositions), by means of natural or artificial controlling factors.
What is structural adaptation?
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations. Adaptations are the result of evolution.
What is a mimicry in science?
Mimicry is the similarity of one organism (the mimic) to another (the model) that enhances the mimic’s fitness through its effect on the behavior of a third party, the operator. From: Trends in Ecology & Evolution, 2013.
What is used to determine phylogeny?
The fossil record is often used to determine the phylogeny of groups containing hard body parts; it is also used to date divergence times of species in phylogenies that have been constructed on the basis of molecular evidence.
What is a natural selection in science?
What are the 3 types of selection in biology?
The 3 Types of Natural Selection
- Stabilizing Selection.
- Directional Selection.
- Disruptive Selection.
What is a type of selection?
The most common of the types of natural selection is stabilizing selection. In stabilizing selection, the median phenotype is the one selected for during natural selection.
What is meant by stabilizing selection?
Stabilizing selection is the opposite of disruptive selection. Instead of favoring individuals with extreme phenotypes, it favors the intermediate variants. Stabilizing selection tends to remove the more severe phenotypes, resulting in the reproductive success of the norm or average phenotypes.
Where is selective breeding used?
Artificial selection has long been used in agriculture to produce animals and crops with desirable traits. The meats sold today are the result of the selective breeding of chickens, cattle, sheep, and pigs. Many fruits and vegetables have been improved or even created through artificial selection.
What is selection in genetics and breeding?
Selection describes the process of choosing animals that meet the requirements of the breeding objective and will, in a breeding enterprise, pass particular traits onto their progeny. Selection should consider both subjectively measured traits (visual assessment) and objectively measured traits (genetic assessment).
How is a trait selected?
Natural selection can act on traits determined by alternative alleles of a single gene, or on polygenic traits (traits determined by many genes). Natural selection on traits determined by multiple genes may take the form of stabilizing selection, directional selection, or disruptive selection.
What is a morphological adaptation?
Morphological adaptation is a structural change which gives an organism a greater chance of survival in its habitat. The Fennec fox lives in the desert. Its structural adaptation is to have large ears. This allows heat to be radiated from the body helping to cool it down.