They are formed naturally, not organic, solid with a definite volume and shape, have a unique composition, and the atoms are arranged in a pattern called a crystal structure. They are naturally occurring solid, they are made up of a mixture of minerals, smaller rock fragments, organic matter, or glass.
A constant factor could be the dose of the drugs and the species of the rats used.
<h3>What is a constant factor?</h3>
In an experiment, a constant factor is one that is not allowed to change al through the experiment. This one must be held as the same and not allowed to vary. A constant factor could be the dose of the drugs and the species of the rats used.
The factor that would be different for the experimental group and the control group the administration of the new drug.
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The comparison of species based on common physical characteristics Thus, the correct option is D.
<h3>
What is cladistics?</h3>
Cladistics is a method of biological taxonomy that organizes taxa in a branching hierarchy so that all members of a given taxon share the same ancestors and defines taxa uniquely by shared traits not present in ancestral groupings.
Clades, which are collections of organisms made up of an ancestor species and its offspring, are also identified through cladistics.
A cladogram only displays one probable phylogeny for a collection of organisms. It can shed light on the process of evolution. A cladogram should not be viewed as a representation of genuine evolutionary processes, though. It may or may not depict what actually occurred. It merely illustrates what might have occurred.
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Answer:
The source of blood carried to capillaries in the myocardium would be the coronary arteries - C.
