A waxy coating along the inside
All of the above
Nectar and pollen
An egg
400
1000
4000
10
They dig at random until they find one
They hear them
They smell them
They memorized a map
To find females to mate with
To make a nest for their young
To find food underground
Even native bees that can sting rarely sting people unless you scare or hurt them.
Be patient and observe them
Do not be afraid of them
Look for them places with many flowers
Most of the native bees in North America have already been studied.
To hide from birds that would eat them
To make a burrow to keep themselves cool in the summer
In honeycombs
On flowers
In the bark of trees
In underground cells