A
Explanation:
everything else finds or eats food that was made otherwise.
When vinegar and baking soda mix hydrogen ions in the vinegar react with the sodium and bicarbonate ions in the baking soda
Directional selection is a type of natural selection that favors one extreme phenotype over the mean or another extreme. Examples of directional selection include giraffes that have long necks and the darkening of London's peppered moths after the Industrial Revolution.
Stabilizing selection, also known as purifying selection, is a type of natural selection in which genetic diversity decreases as the population stabilizes on a particular trait value. An example of stabilizing selection is birth weigh in humans.
Disruptive selection is a type of natural selection that shows a preference toward the reproduction of genetic material at the extremes within a population.One of the most studied examples of disruptive selection is the case of London's peppered moths.
From Wikipedia
Please don't forget to rate and thank me
It pulls towards it until it gets to a certain point and pushes away and so it stays in a steady orbit
D. It provides information about the subject of an experiment.
Background research is research prior to conducting an experiment.
Explanation:
Background research is important so as to fully understand the variables that are being controlled and tested in an experiment, and their relationships that will give insights into how to design the experiment. The background research is also important in identifying the research problem setting up of a good hypothesis.Background research also reduces the rate of failure of an experiment due to proper preparation.
Learn More:
brainly.com/question/502488
brainly.com/question/1893725
#LearnWithBrainly
