Question

1. how do animals get rid of the carbon dioxide? what body system is involved with removing this waste? also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons. this oxygen is identical to the oxygen gas given off during photosynthesis. 10. (circle one) oxygen is a product or reactant of respiration? (in other words, is it needed or released?) 11. 12. 13. reflection question: explain the relationship between photosynthesis and cellular respiration. be sure to include the main purpose of both and where they occur inside the cell. humans and plants humans need plants. all animals do. humanitys relationship with plants has actually made it possible for us to have a civilization. before we had cities, humans went around in little packs and were hunter - gatherers. we ate rats, birds, berries, and whatever food we could find. it wasnt very efficient. one day someone had the bright idea to plant the plants we like to eat. when humans did that, they were able to stay in one place full time. then came the cities and a huge system of agriculture to support millions of people. big time farming as time has passed, we have taken farming to new levels. we have manipulated species to create big apples and large ears of corn. the plants would never have done it in the wild. it took man to change the plants. we are also moving toward the genetic alteration of plants. were trying to make plants that are resistant to disease and bugs. these stronger plants will allow our crops to give us more food from the same amount of space. 1. genetic alteration probably refers to altering what... (found in the nucleus)

Explanation:

Genetic alteration in plants, as mentioned in the text, likely refers to changing the DNA (deoxyribonucleic acid) which is found in the nucleus of cells. DNA contains the genetic instructions for the development, functioning, growth, and reproduction of all known organisms. By altering the DNA, scientists can change traits such as disease resistance or size of fruits (like making big apples or large ears of corn as stated in the text).

Answer:

DNA