-Medulla in a human is smaller (medullary index of less than one-third); and medulla in animals is very thick (medullary index of one-half or greater).
- Cuticle in humans is imbricated; and the cuticle in animals is coronal or spinous.
- Pigmentation in animal hair is denser than human hair.
- Animal hair can change colors in banded patterns; human hair cannot.
"C. They never have a shell" is the best statement that describes a characteristic of amoeboids. These can take multiple different shapes and forms and must be flexible.
Protects the soft tissues<span> of plants and controls interactions with the plants' surroundings. Hopes this helps!! :)</span>
Trucks, houses and swimming pools are measured using: millimetres. Thus, option "C" is correct.
<h3>How, explain your answer?</h3>
If it is four millimetres wide on the drawing, then you can divide 16 by 4 to find that every four meters in real life are equivalent to one millimetre in the drawing.
Thus, option "C" is correct.
To learn more about millimeters click here:
brainly.com/question/25862563
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