Answer:
They both are taught to you by your teacher.
Explanation:
Hope this helped
Answer:
More detailed explanation please and ill answer in the comments
Explanation:
My best answer would be E<span>ukaryotic</span>
I think the hydra lacks the specialized cells for touch and chemical detection. On the other hand earthworms have touch, light, vibration and chemical receptors along the entire body surface. Both of them are invertebrates (those animals without a backbone), they include insects, worms, jelly fish, spiders among other animals.