Answer:
B. oxygen and carbon dioxide.
Explanation:
During cellular respiration, organisms uses oxygen for breakdown of food molecules such glucose and carbondioxide gas is released in the atmosphere. Respiration is a process in which energy is produced in the form of Adenine tri phosphate (ATP) and releases carbondioxide by the chemical combination of glucose and oxygen molecules. The type of respiration in which oxygen is used is known as aerobic respiration.
Answer:
If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over time, galaxies, then individual stars, will smash into each other more frequently, killing off any life on nearby planets.
Explanation:
The answer is hair follicles
Answer:
a
Explanation:
generally there are four types of cell signaling. this a common mcq which was asked several times.
Answer:
somewhat answered, sorry it has been a bit
Explanation:
plants take in co2-->plant gets eaten-->animal dies, co2 moves to soil, some become fossil fuels
breathing puts co2 in the atmosphere, when fossil fuels are burned they are put into the atmosphere
co2 from the atmosphere dissolves in the surface of the ocean, photosynthesis