Trace the flow of energy by numbering the following events from start to finish. 1. step 1 the sun emits energy. 2. step 2 a rabbit eats the plants and uses the energy for growth and respiration. 3. step 3 plants absorb energy from the sun and use it for photosynthesis. 4. step 4 a fox eats the rabbit and uses the energy for growth and respiration. 5. step 5 the fox dies and is decomposed.

In an ecosystem, the energy flows from the producer to consumer levels. The plants utilise the energy from the sun and convert it into chemical energy. The chemical energy is stored as a form of energy molecules in the plants. The primary consumers eat the plants and get the chemical energy. The tertiary consumers eat the primary consumers and obtain energy from them. The dead organism is decomposed and the organic nutrients are restored in the soil.

Hence, the correct sequence would be:

1. The Sun emits energy. 

2. Plants absorb energy from the Sun and use it for photosynthesis. 

3. A rabbit eats the plants and uses the energy for growth and respiration. 

4. A fox eats the rabbit and uses the energy for growth and respiration. 

5. The fox dies and is decomposed. 

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?