The hypothesis for what causes a scarlet ibis to have red feathers is that a chemical in the bird's food produces the red coloring.
B. A chemical in the bird's food produces the red coloring. In this case, the hypothesis suggests that the red feathers of the scarlet ibis are caused by a specific chemical component present in the bird's food. This hypothesis can be tested by conducting experiments to analyze the bird's diet and investigating the effects of different foods on the coloration of the feathers.
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higher rates of reproduction
more susceptibility to antibiotics
greater genetic variation
Bacterial genetic recombination is characterized by DNA transfer from one organism called donor to another organism as the recipient and the result is the production of genetic recombinants, individuals. Those recombinant bacteria have a greater genetic variation because they carry, not only the genes they inherited from their parent cells but also the genes introduced to their genomes. There are three types of mechanisms that create genetic variations in bacteria (through recombination):
1. Transformation-that occurs when bacterium takes up a piece of DNA floating in its environment,
2. Transduction-occurs when DNA is accidentally moved from one bacterium to another by a virus (bacteriophage) and
3. Conjugation- when DNA is transferred from one bacteria to another through a tube between cells.
Those mechanisms of genetic recombination together with short generation time and random mutations allow bacteria to evolve very quickly and for example, create resistance to antibiotics.
The circumstance that concludes whether the organism will be able to accommodate and endure in the changed conditions is called selection.
The correct answer is:
Option B. Disruptive selection.
This can be explained by:
Therefore, disruptive selection will lead to increased phenotypic and genetic variation.
To learn more about disruptive selection follow the link:
Answer:
diruptive selection/ diversifying selection
Explanation:
disruptive selection often leads to more variations in species