Answer:
DNA and RNA
Explanation:
DNA remains inside while RNA transports
<span>The fluid-filled region between the nucleus and the cell membrane is called the CYTOPLASM. ... This is because cytoplasm is packed with organelles that are critical to a cell's survival, including mitochondria, ribosomes, Golgi bodies, and the endoplasmic reticulum.</span>
Fungi lacks the ability to produce their own food because they do not have chloroplast which is needed to obtain energy from the sun and convert it into food. Also fungi lack ability to fix nitrogen which has to be incorporated into their food. They also can not fix carbon and utilize it to produce food. Because of these they have to depend on dead organic matters for food.
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.