What would most likely be the result of a malfunctioning liver?

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?

In which situations is the principle of cross-cutting relationship useful in determining relative age?

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?