Answer:
Option C. products of photosynthesis and reactants of cellular respiration.
Explanation:
Photosynthesis is food producing process. Photosynthesis is a process in which glucose and oxygen are produced by the combination of carbondioxide and water in the presence of sunlight while respiration is energy releasing process. Respiration is a process in which energy is produced in the form of Adenine tri phosphate (ATP) by the combination of glucose and oxygen.
<span>Organisms decompose more quickly when they are in contact with oxygen. ... When an organism is buried quickly, there is less decay and the better the chance for it to be preserved. The hard parts of organisms, such as bones, shells, and teeth have a better chance of becoming fossils than do softer parts. Got the answer from </span>https://www.americangeosciences.org/education/k5geosource/.../fossils/how-fossils-form
Hope it helped
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D.theory.
Hypothesis is an idea or explanation of something that is based on a few know facts but that has not yet been proved to be true or correct.
While a theory is a formal set of ideas that is intended to explain why something happens or exists.
The common passage way for air and food is called the pharynx
Answer:
Stage REM Sleep
Explanation:
According to the AASM (American Association for Sleep Medicine), the sleep has five stages. The first is the stage of wakefulness when you are starting to feel drowsy. Then the stage N1 is the transition into sleep: the breath becomes shallow, and the body doesn't move or just a little. In stage N2 the physiological function of the body start to decrease and is more difficult to wake up than the stage before. The next stage is the N3, which is the stage when is more difficult to wake up from all stages because is the deepest sleep, and in this stage, the movement of the eyes stops. The last stage is REM,(rapid eye movements), in this stage the brain is more active but the body is paralyzed.