Answer:
C
Explanation:
Keystone species is the sea otter. Sea otters, playing a critical role in containing the urchin populations, prey on urchins and thus control the numbers of kelp grazers to maintain the forest.
Remember, keystone species is most often a top level predator in an ecosystem.
It is important to note that the graph has 0 solar intensity for a long part of the day; around 16 hours. Only from 8 to 16 hours do we have significant sunlight.
This means that the length of day is very short during this time of the year;
The length of the day changes throughout they year; day is equal to night (12 hours each) during the solstices on March 21 and September 23 but during summer day is longer than night in the northern hemisphere; during winter it is smaller. THe smallest daylength is at December 21st (in the northern Hemisphere). This phenomenon is due to the tilt of the axis of the earth.
The correct answer is December 21; (if we talked about a place in the southern hemisphere, the answer would be March 21).
Conclusion is the step of the scientific method explains why the results turned out the way it did.
<h3>What are the steps of scientific method?</h3>
There are seven steps of the scientific method which are the following:
1. Ask a question: The first step in the scientific method is asking a question that you want to answer.
2. Perform a research about the given topic.
3. Make your hypothesis. Hypothesis is a statement which may be true or false.
4. Test your hypothesis by conducting an experiment or a series of experiments.
5. Make an observation.
6. Do analysis about the results and draw a conclusion on the basis of given data.
7. Present the findings to the world.
So we can conclude that Conclusion is the step of the scientific method explains why the results turned out the way it did.
Learn more about scientific method here: brainly.com/question/17216882
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Answer:
respiration,photosynthesis
Explanation:
I'm not so sure the first blank is cellular respiration but I'm posive the second blank is photosynthesis:)
