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Explanation:
(in an echinoderm) each of a large number of small flexible hollow appendages protruding through the ambulacra, used either for locomotion or for collecting food and operated by hydraulic pressure within the water-vascular system.
Answer:
The carbon, phosphorous, water and nitrogen cycles are considered to be biogeochemical cycles because all of the cycles are cycles in which chemical and simple substances are transferred between living systems and the environment. Simply put, they all include the biosphere, chemical Please Mark Brainliest If This Helped!
Answer:
the answere is Bilateral symmetery
This statment is false the pen on a seismograph does not swing freely.
it is a producer the bottom of the food chain and it is responsible for feeding the smaller fish through making its energy by photosythesis so yes its a producer
