The primary producers or the producers are the plants, which can synthesize their own food with the help of sunlight. The consumers are the organism, which depend on other organism for their food requirement they cannot synthesize their own food. The primary consumers are the organism who feed on plant products. The secondary consumers are the organisms who feed on primary consumers. the tertiary consumers are the organism who feed on secondary consumers.
In this case, the mice is primary consumer and the hawk is secondary consumer, as the mice feed on plant product and hawk feed on mice.
Chemical energy, Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat.
The kind of cell division that goes with growth is Mitosis. Mitosis cell division is accompanied by cellular enlargement and differentiation, so there is an increase in size and weight. I hope this helps!