Answer:
insect
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i think none of the above is primary consumer
primary consumer is one which feed on plants ( means herbivores)
The endocrine system secretes hormones.
The answer above is completely incorrect. The correct answer is an experiment since we are talking about the scientific method and the order of that process is observation, hypothesis, experiment, and theory.
Answer:
Option D, Continents cannot cut through the ocean floor.
Explanation:
It was believed earlier that oceans were the land bridges that used to connect different geologic plates of planet earth earlier, had now sank down and thus there exists no connection between the tectonic plates. Therefore, without any link or connection, continents cannot cut through the ocean floor.
Also as per the Land Bridge Theory , there has been continuous shifting of dry land due to which identical land species on different continents were found.
Hence, option D is correct
