Hey!
Hope this helps...
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A user mentioned in the comments of one of the answers deleted: "its B" < The user (<span>lolbae0806) had mentioned this...</span>
So I believe the correct answer is:
B.) More oxygen gas became present in the atmosphere.
Gather all the information that you know about enzymes and and explain in a few sentences how the student probably measured the polyphenol oxidase activity :) hope this helped
Answer: open more frequently to allow water and CO2 into the leaf tissue.
Explanation: Oxygen and C02 enters into the leaves to gives energy and sugar as food,to enable the plant to grow.
It allows the process of photosynthesis. Photosynthesis is the process whereby green plant and other orgasm manufacture light into chemical energy. Plants through the opening of the leaves breath in carbon dioxide and breath out oxygen. While animal in the other hand breath in oxygen and breaths out carbon dioxide.
The continuous opening and closing of stomata is responsible for photosynthesis.
Answer:
(B.) their predictions are almost never accurate
Explanation:
A model is a representation of an idea, process that scientists use in explaining a complex data to a more simple and understable way. Models reflect the natural world e.g. climate models are used by humans to learn and to know about carbon cycles, water cycles and the weather. Model do come with some limitations one of them is an incomplete detail e.g. measuring the distance round the earth, we were made to believe that the model of the Earth is spherical, so in calculating the distance round the earth certain details are missing like the variations in distance caused by valleys and mountains and other topological problems that might be encountered.
