Answer:
the differnt dna and rna strucures in the mammals cause differen tlooks they have also evolved from being in the wilf most of their lives
Explanation:
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.
Answer:
Variations are caused by mutation. random mating between organisms.
Explanation:
To compare the average weight of mallards raised on corn to the average weight of mallards raised on rhubarb. Thus option D is correct.
<h3>What is hypothesis testing?</h3>
In statistics, hypothesis testing is a method for determining if survey or experiment results are relevant.
To compare the average weight of mallards raised on corn to the average weight of mallards raised on rhubarb. this experiment is to be done in order to best test this hypothesis.
Learn more about hypothesis testing here:
brainly.com/question/1506480
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