1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Savatey [412]
3 years ago
6

Data samples in which you expect no change to occur are_____.

Biology
1 answer:
mina [271]3 years ago
5 0
The answer is negative controls. These are groups where no phenomenon is probable. They ensure that there is no effect when there should be no effect. Where there are only two possible outcomes, e.g. positive or negative, if the treatment group and the negative control both produce a negative result, it can be concluded that the treatment had no effect. If the negative control group and the treatment group both yield a positive result, it can be inferred that a puzzling variable is involved in the occurrence under study, and the positive results are not only due to the treatment. In other examples, outcomes might be measured as lengths, times, percentages, and so forth.
You might be interested in
Which theory says that populations change slowly over time?
tatuchka [14]
The theory of evolution!
3 0
3 years ago
In a certain forest, elephants and deer were feeding on certain types of plants. This plant community was larger than the elepha
Anvisha [2.4K]
The disappearance of the deer from the forest indicates the EXTINCTION OF THE DEER.
The extinction of the deer from the forest will throw the ecosystem out of balance and has negative impacts on the ecosystem. After all the deer has been eliminated, the elephants too will either have to find another source of  food or be wiped out.
3 0
3 years ago
Read 2 more answers
When conducting scientific research or experimentation, researchers carefully analyze and evaluate results to determine a valid
Igoryamba
The answer is actually D. I just took a test 
8 0
3 years ago
Read 2 more answers
2. If 10% of the bases in a molecule of DNA are adenine, what is the ratio of adenine to guanine in the same
sertanlavr [38]

Answer: Option D) 1:4

Explanation:

Recall that the sum of all nitrogenous bases in the DNA nucleotide is equal to 100%. And specific base pairings of Adenine to Thymine (A=T), and Cytosine to Guanine (C=G) must be equal.

So, the percentage of Adenine equal thymine, and that of cytosine equals guanine.

Now, A + T + C + G = 100%

So, if adenine makes up 10% of the DNA nucleotides, then thymine is also 10%.

Then, 10% + 10% + C + G = 100%

20% + C + G = 100%

C + G = 100% - 20% = 80%

Thus, divide 80% by 2 to obtain the individual percentage of cytosine and guanine. Each will take 40%

Ratio Adenine to Guanine is 10% to 40%

or 1:4 in simplest form

7 0
3 years ago
Read 2 more answers
What is the power house of the cell?
ANEK [815]

Answer:

Mitochondria is the powerhouse of the cell

Explanation:

Pls mark as brainliest

8 0
3 years ago
Read 2 more answers
Other questions:
  • Where are Salt Marshes found ?
    10·1 answer
  • adenine,guanine,cytosyne and thymine are the four nitrogenous bases present in the DNA of all organisms.Which scientist discored
    7·1 answer
  • The division of any cell, prokaryotic or eukaryotic, requires that the genetic information in each of the parent cell's chromoso
    8·1 answer
  • Look at the jellyfish in figure 25-6. How many planes of symmetry could you draw through this animal?
    15·1 answer
  • Many countries, including the United States, measure output by calculating the _____.
    9·1 answer
  • La monera tiene aparatos reproductores
    6·2 answers
  • Can someone help me!? Please :)
    8·1 answer
  • 1pt Place the following steps in the correct order:
    14·1 answer
  • How does the structure of DNA correlated with its role as the molecular basis of inheritance
    9·1 answer
  • Explain how a scientist can determine when a particular species of dinosaur lived on Earth.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!