<span>because the metal thermally expands and contracts to complete an electrical circuit</span>
I believe its B because bees spread pollen but take honey.
Answer:
Explanation:
Have a good experimental layout or designs will help avoid biases and increase the accuracy of Data to be collected. Hence good experimental layout is very vital in minimizing error
Formulation of problem statement problem statement to be formulated must address the problem to be solved to avoid bias in data generated and results.
Materials and equipment for data collection should be readily available to avoid collection of wrong or inaccurate data.
Expertise should be source to generate data because knowledge about the subject is vital.
B. ventricles
The chordae tendinae, also referred to as heart strings, are tendons that connect the atrioventricular (tricuspid) valves to the muscular wall of the heart. These chords are made predominantly of collagen, while the remaining part is elastin. They play the vital role of maintaining the structure of the valves they connect to. Due to the high pressure generated within the heart, it is entirely possible for the atrioventricular valves to turn inside out. The chordae tendinae prevent this from happening and keep the valves functioning properly.
