1. Compare photosynthesis and aerobic respiration by
a. Writing their word equation
b. Writing their balanced formula equation
c. Listing the ways in which they are similar
d. Listing the ways in which they are different.
2. Outline how plants and animals get their glucose.
3. Explain how aerobic respiration releases energy from glucose

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.