Answer:
Carbon dioxide or nitrogen
hopefully its carbon dioxide u can try
to check if it is. Sorry
At first, it was thought that the Earth's atmosphere consisted of hydrogen compounds—methane, ammonia and water vapour—and that life began under such reducing conditions, which are conducive to the formation of organic molecules
Idk but maybe you can search online or ask a health professional
Answer:
<em>The correct option is D. It is carbon dioxide released by respiration.</em>
Explanation:
The process by which ATP is abundantly formed in organisms is termed as cellular respiration. Cellular respiration can be described as a process in which carbon dioxide and water are produced from glucose and oxygen. ATP molecules are synthesized by this process which are used for cellular activities.
Hence, the substance X in the investigation shows carbon dioxide which was produced when the yeast cells began to respire. Yeast cells can respire either in the presence of oxygen or without oxygen.
The ovaries are a physical structure and the function of the ovary is to produce eggs in the birds.
<h3>Physical structures of birds</h3>
The physical structures are those structure that we can see in an organism but externally and internally. The table is not shown here but we can still make some corrections.
The ovaries are a physical structure and the function of the ovary is to produce eggs in the birds.
Learn more about ovaries: brainly.com/question/22265015
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