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iren [92.7K]
3 years ago
5

Without doing any further work, comment on what conclusions you could draw if you conducted a test of the null hypothesis that t

he mean number of bacteria is the same at the source and at the outlet, versus the two-sided alternative.
Biology
1 answer:
Natalka [10]3 years ago
5 0

Answer:

The null hypothesis is incorrect.

Explanation:

The null hypothesis is incorrect because the average number of bacteria did not remain the same at the source and at the outlet. We know that bacteria reproduce in a very less time and they use reproduction methods such as binary and multiple fission so with the passage of time, the population of bacteria increases and did not remain the same at the source and at the outlet.

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Dr. Alexander Winemann is a ____ist who specializes in organic chemistry.
Oksi-84 [34.3K]
He's actually a biologist who specializes in organic chemistry. But since that's not in the answer choices, i'd recommend putting Scientist or Dermatologist. 
5 0
4 years ago
The energy released in this process was originally present in
Ira Lisetskai [31]
I think your question is: <span>The energy released during this process was originally present in </span>
<span>(1) sunlight and then transferred to sugar </span>
<span>(2) sunlight and then transferred to oxygen </span>
<span>(3) the oxygen and then transferred to sugar </span>
<span>(4) the sugar and then transferred to oxygen

The right answer is (1)
The sunlight is absorbed by chlorophyll as an energy to catalyse the formation of ATP and 3-phosphoglycerate to form sugar (which is considered as energy supply.</span>
8 0
4 years ago
Read 2 more answers
A major environmental problem caused by using the agricultural practice of tilling is
blondinia [14]

Answer:

Tilling breaks the natural structure of the ground by exposing the organic matter, accelerates mineralization, and pollutes.

Explanation:

Organic matter, together with porosity and humidity directly influence in the recovery of the soil structure and stability when these are exposed to different mechanical treatments or actions. Porosity and soil matrix continuity directly influence in the hydraulic conductivity and interchange water and air processes.

Tilling systems affect the productivity of the crops, and the physic, chemical and hydraulic characteristics of the soil. Tilling modifies the superficial layer of soil, alters the continuity of porosity and reduces the amount of organic matter in the ground.

Intensive use of tilling contributes severely to the carbon emission. Carbon is stored in the soil and when this last one is altered by tilling, carbon is exposed and released out in the open, becoming CO². This gas is one of the gases of the greenhouse effect and one of the causes of global warming.

Intense tilling breaks the natural structure of the ground by exposes the organic matter, it accelerates mineralization,  and it pollutes.

6 0
4 years ago
How does a growing embryo inside a seed obtain food?
fredd [130]
The answer should be 1.
Photosynthesis only occur when leaves are formed,
When is seed is produced, they already have a lot of nutrients inside stored until they grow leave to undergo photosynthesis.
5 0
4 years ago
Read 2 more answers
A single strand of DNA contains the following nine nucleotides in this order: ACT TAT GGA. What sequence of bases will be presen
Harlamova29_29 [7]
The correct answer to your question would be TGA ATA CCT, So letter D) <span>TGA ATA CCT. Hope this helps you out let me know.</span>
5 0
3 years ago
Read 2 more answers
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