Imagine that scientists have discovered annelid life on a new planet. Remarkably, these worms are large in size, lack mouths, and appear to form symbioses with certain bacterial species. These worms most resemble on Earth.

These worms most resemble vestimentiferan worms on Earth

Explanation:

The Vestimentiferan worms are a very large marine tube worms. This are very long ones and can get to grow at least three meters and they tend to have a big diameter. They commonly inhabit deep-sea hydrothermal vents. They don't have a digestive system and they are classified as pogonophorans or a separate phylum or polychaetes.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d