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
Julli [10]
3 years ago
15

Onion root tips are often used to study mitosis because they grow very rapidly, which means that many cells are dividing. The ve

ry tip of the onion root ends in a structure called the root cap. The other end of the root attaches to the onion. A scientist is interested in determining whether an onion root tip grows from the base of the root or from the tip near the root cap. She counts the number of cells that are in one of the phases of mitosis at different distances from the root cap. What is the dependent variable in her experiment
Biology
1 answer:
guajiro [1.7K]3 years ago
7 0

Answer:

- Dependent variable: number of cells that are in one of the phases of mitosis

Explanation:

In an experiment, the independent variable is the variable that is not changed by the other variables that are being measured during the experiment (in this case, the independent variable is represented by the distances from the root cap). On the other hand, the dependent variable is the variable that is being measured/tested during the experimental procedure and, therefore, is 'dependent' on the independent variable. In consequence, in an experiment, the dependent variable is expected to change as a result of the manipulation of the independent variable.

You might be interested in
What do complement proteins do?
spayn [35]

Answer:

Heal tissue

Explanation:

The complement system is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promotes inflammation, and attacks the pathogen's cell membrane.

4 0
3 years ago
Read 2 more answers
Explain how the law of conservation of energy is applied to the generation of electricity from fossil fuels.
sweet [91]

Explanation:

The law of conservation in generation of electricity from fossil fuels;

 Fossil fuels are derived from the remains of plants and animals.

These fuels stores and preserves chemical energy which have produced through their activities which originates from the sun as form of solar energy.

The chemical energy is obtained for used as fossil fuels.

As fuels, they combine with oxygen in power generating plant to produce heat energy. The combustion process transforms chemical energy to heat energy.

The heat energy is used to heat boilers of water to produce steam. Heat energy is expressed as thermal kinetic energy which are converted to mechanical energy to drive turbines. The turbine is connected to a generator where electricity is produced.

This totally agrees with the law of conservation of energy.

The law states that "energy is neither created nor destroyed but transformed from one form to another"

Chemical energy - heat energy - mechanical energy - electrical energy

learn more:

law of thermodynamics brainly.com/question/3564634

#learnwithBrainly

4 0
4 years ago
Guard cells:
ehidna [41]

Hey there!


The purpose of guard cells is to control the opening and closing of the Stomata, keeping it the correct width, or size.


Therefore, your correct answer would be Option 3, control the size of the Stomata.


Hope this helps!

5 0
3 years ago
Read 2 more answers
please help ill give brainliest :)) At the equator, the earth spins a distance of 26,120 miles every day. At what speed does the
a_sh-v [17]

Answer:

1088 mph

Explanation:

26120/24 = 1088.333 ≈ 1088

3 0
3 years ago
Read 2 more answers
What are some freshwater systems and what do they all share in common?
Norma-Jean [14]

Answer:

There are three main types of freshwater biomes: ponds and lakes, streams and rivers, and wetlands. We'll go into the details of each below. Ponds and lakes are often called lentic ecosystems. This means that they have still or standing waters, not moving like rivers or streams.

Explanation:

5 0
3 years ago
Other questions:
  • A 70 kg person travels to planet where he weighs 1750 N. what is the value G on the planet
    6·1 answer
  • Will give brainlist, questions
    15·1 answer
  • 29. Which of the following answers are correct?
    9·1 answer
  • Natural disasters such as fires and floods will change the ______ of an ecosystem????
    7·2 answers
  • Wich factor allows earth to hold onto liquid water
    12·1 answer
  • According to the molecular clock, how long ago did modern humans and neanderthals share a common ancestor? 25,000 ya 140,000 ya
    8·1 answer
  • Which three structures are found in both prokaryotic and eukaryotic cells?
    13·2 answers
  • PLEASE HELP FAST
    5·2 answers
  • Which statement best compares these chemicals?
    15·1 answer
  • 8. Which of the following organisms can be heterotrophic and/or autotrophic? a. Volvox b. Euglena c. Oscillatoria d. a, b, and c
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!