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
Marrrta [24]
3 years ago
5

why did the researchers add filtrate which macerated moss had been removed to control microcosms?(worth 5marks)​

Biology
1 answer:
Mice21 [21]3 years ago
5 0

The researchers in question opted to remove the macerated moss from the control group in order to <u>guarantee that the </u><u>results </u><u>were accurate. </u>

The experiment in question consists of:

  1. Placing volcanic rock samples into two glass containers
  2. Adding to one container the mixture of macerated moss and water
  3. The other container is the control, it receives only water
  4. The goal is to measure the release of minerals from the rocks.

When performing an experiment, the control group is of vital importance. The presence of a control group ensures the <em>accuracy</em> of an experiment.

Given that moss is grown on rocks and will erode the rock over time, the researchers opted to remove it from the control sample. <u>Minerals present in the rock might mistakenly be measured as </u><u>minerals </u><u>released from the volcanic </u><u>sample</u>, thus making the results of the experiment inaccurate.

To learn more visit:

brainly.com/question/1073731?referrer=searchResults

You might be interested in
Biology question 3
mamaluj [8]
The muscle cells divide through Mitosis, a cellular division comprised of several other substeps. 

The final step of the cell division is the cytokinesis by which two new cells are formed from cell with a multiple number of nucleus after the replication process. This steps follow the telophase. 
5 0
3 years ago
Anders is in his mid-fifties. anders can expect that he will experience a gradual decrease in _____.
Vikki [24]
<span>He will experience a gradual drop in his testosterone levels as he ages. This will cause a lowered amount of energy and could cause a slight gain in weight. In addition, he may experience fatigue, a loss of body hair, and a general decrease in his strength.</span>
6 0
3 years ago
Which terrestrial biome has abundant rainfall?
enot [183]

The biome that has over 100 inches of rain each year is the Rainforest. Therefore, the Rainforest has abundant rainfall.


5 0
3 years ago
Identify the factors that seem to affect the buffalo and wildebeest.
Anton [14]

Answer:

lack of resources, and mating

Explanation:

they may go ictenct

7 0
3 years ago
During a conference presentation, a scientist described the materials that she used and how she performed her experiments.
azamat

It tells the audience if the results support or contradict the hypothesis

Explanation:

When a scientist describes the materials that she used and how she performed her experiments, it tells the audience if the results supports or contradicts the hypothesis.

  • A hypothesis formulation helps to test a scientific claims.
  • Experiments are usually hinged on well designed hypothesis.
  • From the hypothesis, one can be sure the experiment is tuned and designed within the scope of the observation desired to be tested.
  • This is why the materials used and procedures followed in an experiment can tell if the results supports or contradicts the hypothesis.

Learn more;

Experiment brainly.com/question/5096428

#learnwithBrainly

8 0
3 years ago
Read 2 more answers
Other questions:
  • Select the correct answer from each drop-down menu.
    12·1 answer
  • What is the cuplike depression of the hip bone into which the head of the femur fits?
    6·1 answer
  • In regard to the kidneys' role in regulating water balance in the body, the term reabsorption means the amount of the substance
    15·1 answer
  • Why does the message go to your brain first when you put your hand on a hot stove?
    7·1 answer
  • Which statement best describes the role of DNA ? It transmits genetic information to the next generation. It speeds up chemical
    14·2 answers
  • 7. The role of an organism in the ecosystem is called its​
    8·1 answer
  • Analyze the graph showing the rate of photosynthesis activity as a function of carbon dioxide levels. Select as many of the choi
    12·2 answers
  • Which of the following statements about elements and atoms is true?
    15·1 answer
  • Please help me now hurry​
    8·2 answers
  • Sometimes a cell is compared to a city. How would the energy needs of a cell be compared to the energy needs of a city?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!