We depend on those fuels to heat our homes, run our vehicles, power industry and manufacturing, and provide us with electricity.
This is a mesh-like layer found just outside the cell membrane of most bacteria and makes up the cell wall.
Gram negative organisms have very little whereas gram positive organisms have a very thick peptidoglycan layer.
Answer:
B. In fishes, blood passes through the gills, returns to the heart, and then is pumped to the systemic tissues.
Explanation:
In fish, blood does not pass through the gills, returns to the heart and is then pumped into the systemic tissues.
Most fish breathe through gills. Water continually enters the fish's mouth, bathes the gills and exits through the openings on either side of the head. Most fish breathe through gills, also known as gills. Water continually enters the fish's mouth, bathes the gills and exits through the openings on either side of the head.
The heart of the fish has two cavities, an atrium and a ventricle - and through it only unoxygenated blood circulates. After passing through the heart, unoxygenated blood goes to an artery and into the gills where it receives oxygen gas. This now oxygenated blood is distributed to all organs of the animal's body.
The factors that affect an ecosystem such as rainfall, sunlight etc are all factors in this experiment.
<h3>What are factors?</h3>
The term factors in an experiment setting refers to the variables that are being manipulated in the experiment. Usually, factors are altered to determine its effect on the results.
The factors that affect an ecosystem such as rainfall, sunlight etc are all factors in this experiment.
Learn more about experiment factors:brainly.com/question/16171570
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