<em>Answer: D.
the insect touching the trigger hairs</em>
<em>I did the test</em>
The claim could become valid scientifically if it is tested in a controlled setting with repeated results. The correct option is the first option.
<h3>Scientific validity</h3>
A statement without any experimental test is considered a hypothesis in science.
In order for tentative statements to become valid scientific claims, they must be tested experimentally in a controlled setting with the resulting data supporting the claims. The data must also be reproducible by independent researchers.
More on scientific validity can be found here: brainly.com/question/507266
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Bloodstain shape is determined by the angle between the flight path of the droplet and the surface that it impacts (Fig.1). When a drop of blood strikes a horizontal surface from the perpendicular (at an angle of 90°, Fig.2), the resulting bloodstain will be round. As the angle between the blood drops’ flight path and the target surface decreases, the length of the resulting bloodstain increases and the width decreases; in other words, the bloodstain becomes longer and narrower as the size of the angle decreases (Fig.3). A blood drop that has impacted a target surface from an angle of 12° will be long and narrow (Fig.4). Also present on these long, narrow stains is a ‘tail’ (Fig. 4). As the drop of blood impacts the target surface, the main body of the droplet will stick to the surface. A small portion of the blood drop will tear off from the top and continue in a forward direction. This secondary spatter has the appearance of a tail.
Answer:
oxygen and hydrogen had equal electronegativity.the covalent bond of water molecules would not be polar,and water molecules would not form hydrogen bonds with each other
Explanation:
explanation was been given in the answer
<span>Irwin Rosenstock developed this model. His research was used to show why so few people undertake preventative measures for diseases and illnesses. This model shows that people tend to think that they are healthier than they might be, so there is no need for them to get screenings or other types of treatment.</span>