<span>In the question re-posed as one of the answers the best solution is option D
That is to say Unlike mammals fish ... utilize gills for gas exchangeIn the question re-posed as one of the answers the best solution is option D
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A constant factor could be the dose of the drugs and the species of the rats used.
<h3>What is a constant factor?</h3>
In an experiment, a constant factor is one that is not allowed to change al through the experiment. This one must be held as the same and not allowed to vary. A constant factor could be the dose of the drugs and the species of the rats used.
The factor that would be different for the experimental group and the control group the administration of the new drug.
Learn more about experiment:brainly.com/question/11256472
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There is no such thing as bird years, so your budgie is still 4 years old :)
The factor that would least affect photosynthesis is Nitrates in the soil.
Photosynthesis is the process by which plant make their own food by utilizing energy from sunlight, water and carbon dioxide. The limiting factors that affect photosynthesis are the light intensity, carbon dioxide concentration, temperature and water. Without enough light, a plant cannot photosynthesize very quickly, even if there is plenty of water and carbon dioxide.
the last phosphate bond is broken.
that's called a macroergic bond between the 3rd and 2nd phosphate groups
