Answer:
Arthropods have a tough, non-living outer shell called exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons, which develops within the deeper skin or body tissues and act as their protective covering.Explanation:
A sample is termed REPRESENTATIVE SAMPLE if it has similar characteristics to the population being studied.
The representativeness of a sample is the extent to which its characteristics accurately reflects the characteristics of the population being studied.
Answer:
can you upload the question again..coz some part are not showing
Answer:
Cells are the basic unit of matter is the correct answer.
Explanation:
The other answers are all a part of the cell theory, but that one is NOT and since the question is asking for the incorrect one, that's the answer. :)
