Answer:
c. Each key is organized as a flowchart.
Explanation:
A dichotomous key is a device that enables users to recognise natural world objects, such as wildflowers, trees, reptiles, mammals, fish and rocks. it used for the Identification whereby groups of species are frequently divided into two categories with increasing sequential division, more information on the basic characteristics of a particular organism is released.
Dichotomous keys are represented in two ways including either as descriptive representation in which a series of paired statements arraged in a numbered sequence or as a branching flowchart (diagrammatic representation)
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Hence, the correct option is c.
Answer:
the answer is C hope this helped.
Explanation:
A reference point is defined as the initial position of an object from which its motion is described.
<h3>What is Reference point?</h3>
This is used as a standard for evaluation or measurement of properties in a body.
Option A was chosen because the motion of the object is described through comparison with the initial position.
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Answer:
Scientists usually use the potassium-argon method to date rocks that are older than about 1 million years. Uranium-238 is also used for radiometric dating. It has a half-life of 4.5 billion years. It decays to produce lead-206.
Species A and B have fewer differences between DNA sequences means that fewer mutations occurred. It is likely due to sequence homo-logy.
<h3>Whta are mutations?</h3>
A mutation is any alteration in the nucleotide (DNA) sequence of the genome of a particular organism.
The linear order of nucleotides and their differences (mutations) can be used to infer homo-logy between two species.
In this case, there are only two different nucleotides in these sequences, thereby sequence homo-logy indicates a likely common origin.
Learn more about sequence hom-ology here:
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