Answer:
When oxygen levels in the blood decrease, the respiratory center sends signals to the diaphragm to increase the rate at which it contracts and relaxes.
Explanation:
A sporophyte is what it will develop into :)
Because each part does a unique step in the system. An example would be that the mouth and stomach breakdown the food, but the small and large intestine absorb nutrients and water into the bloodstream.
Answer:
Some rare autotrophs produce food through a process called chemosynthesis, rather than through photosynthesis. ... Instead, they make food using energy from chemical reactions, often combining hydrogen sulfide or methane with oxygen.
Heterotrophs contrast with autotrophs<span>, such as </span>plants<span> and </span>algae<span>, which can use energy from </span>sunlight(photoautotrophs) or inorganic compounds (lithoautotrophs<span>) to produce </span>organic compounds<span> such as </span>carbohydrates<span>, </span>fats<span>, and </span>proteins<span> from inorganic </span>carbon dioxide. These reduced carbon compounds can be used as an energy source by the autotroph and provide the energy in food consumed by heterotrophs. Ninety-five percent or more of all types of living organisms are heterotrophic, including all animals and fungi and most bacteria and protists.<span>[4]</span>
