Ineed ideas, like what type of robot , and what the energy is called

Some plants rely on the wind to reproduce an example is it’s important for plants to use the forces of nature to reproduce because 1. 1a white tuft of dandelion seeds 2a spiked burrs surrounding seeds 3a hard shell on a walnut? 2. 1b require pollination to reproduce 2b reproduce only asexually 3b cannot move about freely?

Which element provides strength to the exoskeleton of clams and oysters

This is a type pf behavior that animals are born with and them to survive