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1. Describe the 10% rule of a food chain.

1. only about 10 percent of energy stored as biomass in a trophic level is passed from one level to the next.

2. Describe interdependence of nature. Many living things interact with other organisms in their environment. In fact, they may need other organisms in order to survive.

3. Define transpiration.

: the act or process or an instance of transpiring especially : the passage of watery vapor from a living body (as of a plant) through a membrane or pores.

1. Why can’t producers make an unlimited supply of organic material? Why can't many producers in some ecosystems produce an unlimited supply of organic material? Producers often cannot produce an unlimited supply of organic material because 1 or more nutrients are in short supply.

# data[].attributes.body
deoxyribonucleic acid. ...

multicellular. ...

DNA. ...

gene. ...

chromosome. ...

biologist.

x chromosome

y chromosome

organism

protein