Name every "thing" On this planet.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

1. mendel observed that pea plants had traits, such as color, that were either “one or the other,” never something in between. discuss the correlation between mendel’s factors, what they might be, and why pea plant traits come in one form or another—e. g., gray or dark red—rather than blended.

Approximately how many times does an average human heart beat in a lifetime?