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
Tanya [424]
3 years ago
6

Annie wants to find out if having a substance dissolved in water changes the temperature at which the liquid boils. She prepares

two samples of water with equal volumes. She dissolves 3.0 grams of salt in the first sample, and uses the second sample of pure water for a control group. She then heats each sample until it boils and records the temperature while it is boiling.
Biology
1 answer:
gladu [14]3 years ago
5 0

Answer:

The dependent variable is: the temperature at which liquid boils.

Explanation:

The Dependent variable in a study or research is the variable that is measured after the modification or change in the particular research independent variable.

In this case, the independent variable is the treatment that liquid or water get which is the addition of 3 gm salt, and in the response to this treatment change in the boiling point of the liquid will be the dependent variable.

Thus, the correct answer is -  the temperature at which liquid boils.

You might be interested in
Explain why the amount of rainfall a region receives is a better determination of whether it is a desert than temperature.
Gnoma [55]
<span>As there are many kinds of deserts, some hot, some cold even arid deserts are the classic hot deserts, but there are also cold and coastal deserts where temperatures do not get so high. The element common to all of these types of deserts, however, is their lack of rainfall. In that sense the rainfall is a characteristic that determines if it's a desert.</span>
3 0
3 years ago
Read 2 more answers
What assumptions did Engelmann make in order to conclude that red and violet-blue light were more effective than green light in
iren [92.7K]

Answer:

The distribution of chloroplasts in each algae cell was approximately the same.

The number of bacteria grouped at each wavelength (color) was approximately proportional to the amount of oxygen produced by this part of the algae.

Explanation:

Photosynthetic pigments absorb blue, red and green lights. The wavelength of light that is the most effective in driving photosynthesis is 420 nanometers, which corresponds to blue light.

The wavelength of 475nm and 650nm are most effective in driving photosynthesis.

6 0
3 years ago
Cell division is an example of cellular _______, whereas cell differentiation is an example of cellular ________.
-BARSIC- [3]

Answer:

Growth;  development

8 0
2 years ago
Read 2 more answers
Use the drop-down menus and what you know about index fossils to choose the correct answers.
galina1969 [7]

Answer:

1-short

2-order

3-different

Explanation:

i did it :)

4 0
3 years ago
Read 2 more answers
Which form of natural selection on polygenic traits results in the creation of two distinct phenotypes? A. Directional selection
mojhsa [17]

Answer;

-Disruptive selection

Disruptive selection results in the creation of two distinct phenotypes.

Explanation;

-Disruptive selection is a type of natural selection that selects against the average individual in a population. The make up of this type of population would show phenotypes of both extremes but have very few individuals in the middle.

-The variance of the trait increases and the population is divided into two distinct groups. The disruptive selection will cause organisms with intermediate traits to reproduce less, and will allow those organisms with extreme traits to reproduce more.

5 0
3 years ago
Read 2 more answers
Other questions:
  • An elephant has 56 chromosomes. Which statement about a zygote of an elephant is true?
    14·2 answers
  • How are algae cells different from other cells
    13·2 answers
  • Explain the process of buffering that occurs in oceans.
    5·2 answers
  • Explain why healthcare organizations might use military time for their records
    5·1 answer
  • Which of the following is NOT a biomolecule
    6·1 answer
  • During Mendel's first set of experiments, he allowed true-breeding tall plants
    6·1 answer
  • Segmented animals are ____ symmetrical. Their bodies are divided into repeating parts, or segments. Typically, some of their bod
    6·2 answers
  • Attraction between molecules of the same<br> substance solution
    9·1 answer
  • Which process of genetic recombination involves genes from both parents?
    14·2 answers
  • YOU guys can put A. B. C. or D.<br><br>thank you ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!