200
We classify living things _________ to their characteristics.
The pupils _________ to be animals for the day.
The __________ were working with feverish haste to find a cure.
A thermostat is a device that _____________ regulates temperature.
The ___________ in the desert was over 40 degrees.
________ is the amount of moisture in the air.
_______ is the plural of stimulus.
Can you play any musical instruments?
I'll make an _________ and let you stay up late tonight.
She _______ with the key and finally unlocked the door.
He reached out and _______ her arm as she walked by.
Grip the ______ with both hands.