Weegy: negative
User: What conditions and/or raw materials are necessary for photosynthesis to occur?
chlorophyll CO2 H2O O3 C2O anaerobic conditions light ammonium triphosphate
Weegy: chlorophyll, CO2, H2O, light are the necessary conditions needed for photosynthesis to occur.
[ ]
User: Most energy in an ecosystem originally comes from _____.
plants
primary consumers
the Sun
the soil
Weegy: Most energy in an ecosystem comes originally from the Sun.
User: About how much energy is transferred from a producer to a primary consumer?
90% of the original energy from the Sun
10% of the original energy from the Sun
10% of the plant's energy
0.9% of the plant's energy
Weegy: Only about 10% of the energy from the producer is passed on to the consumer.
User: Living organisms that are able to make their own food are _____.
producers
primary consumers
secondary consumers
decomposers
(More) 
