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