Answer:
Consumer is organisms or animals that consume on plants or animals. Primary consumer are animals that feeds on plants, mostly are herbivores. Examples are caterpillar and goat. Secondary consumer are eats on small animals and mostly are omnivores. Examples are birds and monkeys. Lastly is the tertier consumer that feeds on animals, of course they were carnivores. Examples are tiger and jaguar.
It makes a longitudinal wave because it stretches and compresses while it slithers forward
