What is meant by the phrase bite size?

**1). A size suitable for eating in one mouthful - the amount of food taken into the mouth at one time.

* The biscuits were cut bite-size for serving and convenience on the picnic blanket.*

2). A relatively small piece or group of information that can be processed or completed by someone on their own or simultaneously - something manageable but challenging.

* The course breaks down complex science into bite-size steps so they are comprehensible and practical at any pace*.