Answer:
Photosynthesis and respiration are reactions that complement each other in the environment. They are in reality the same reactions but occurring in reverse. While in photosynthesis carbon dioxide and water yield glucose and oxygen, through the respiration process glucose and oxygen yield carbon dioxide and water.
Explanation:
Photosynthesis makes the glucose that is broken down by cellular respiration. Cellular respiration converts the glucose that is made by photosynthesis to oxygen. Photosynthesis converts the glucose that is made by cellular respiration to carbon dioxide
D. the squirrel's digestive system breaks down food for energy.
Living organisms need DNA because the DNA is the genetic code for living organisms. It determines the characteristics of the organism.
Answer:
4x + 6y = 420
Explanation:
since x is number of child tickets and y is adult tickets, and $4 is the cost of child tickets and $6 is the cost of adult tickets, that eliminates A and D.
The question also states "for one day", so that elimates C, which C is the equation for two days.
This leaves 4x + 6y = 420
