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Sergeeva-Olga [200]
2 years ago
5

A student is investigating the effect of plants on inbox air quality and states if plants are added to an indoor environment the

air quality will improve this statement is an example of. a. a theory. b. a procedure. c. observations
d. a hypothesis
Biology
2 answers:
iris [78.8K]2 years ago
6 0
Hypothesis!!!!!!!! Is correct.

Bezzdna [24]2 years ago
3 0
So all we know is that the student stated something ("<span>if plants are added to an indoor environment the air quality will improve "). This is only a statement - it's not a test whether this statement is true yet.
 
So the correct answer is: it is a hypothesis.
</span>
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a town has authorized the construction of a large sports complex at the top of a hill that is covered by a forest. How may the r
Tomtit [17]

If the forest on the hill is cleared, than the soil will lose its natural cover and protection from erosion. The soil will become much more exposed to the erosion, and its top layers will be moved away relatively easy and quickly. Those layers will move downwards, and practically will end up into the river that passes beside the hill. With a significant increase of sediments getting into the river, the river will start to deposit much more material. Also, the sediments will make a problem when there's heavy rainfall because the river will be able to get out of its river bad more easily and cause a flood. The water of the river will also became murkier, muddier, which will make it dark yellowish/light brownish in appearance when there will be rainfall.

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2 years ago
In the male reproductive system, the pituitary hormone _____ stimulates Leydig cells to secrete testosterone, and the pituitary
Katena32 [7]

Answer:

<u>Luteinizing hormone </u>(LH) stimulates Leydig cells to secrete testosterone

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Explanation:

Under the influence of gonadotropin-releasing hormone, the anterior pituitary releases luteinizing hormone (LH) and follicle-stimulating hormone (FSH). In males, LH stimulates interstitial cells of testes (Leydig cell) to secrete the hormone testosterone. FSH acts indirectly to stimulate spermatogenesis by causing the release of androgen-binding protein (ABP) from the Sertoli cells. The function of ABP is to maintain the higher concentrations of testosterone to stimulate the final steps of spermatogenesis in the seminiferous tubules.

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Look at the data related to honey bee population losses between 2006 and 2013 (Figure 1). Expand on the data. How would you revi
olga_2 [115]

In order to improve the graph and make it more detailed in order to get a better perception why the honey bee populations are decreasing, there's few things that can be added.

- Number of bee keepers over the period

The number of the honey bee colonies is directly connected as to how many bee keepers there are. If there's a trend of a decline in the bee keepers, than there will be a trend in the decline of the honey bees.

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The honey bees are animals that are very sensitive to changes in the environment, especially when it comes to pollution. If the levels of pollution are increasing in areas where there's honey bees, it will certainly affect their numbers in a negative manner.


4 0
2 years ago
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How do CAM plants differ from C3 and C4
algol13

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