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
soldi70 [24.7K]
3 years ago
6

List some variables that can change in an experiment and discuss the importance of a control group

Biology
1 answer:
astraxan [27]3 years ago
7 0
Variables change with each experiment, ie amount of water a plant receives would alter growth rate. A control group however demonstrates reactions with all variables being controlled. Let’s say you’re testing whether certain brands of coffee make plants grow better. Your experiment would have plants receiving the same amount of different brands of coffee, with the control group receiving water. This would show whether the coffee made the plants grow more, and which made it grow less. You would compare the results from the experiment to the results from the control.
You might be interested in
What are the effects of fishing on the reef ecosystem
Lemur [1.5K]

Answer:

Coral reef fish are a significant food source for over a billion people worldwide. Many coastal and island communities depend on coral reef fisheries for their economic, social, and cultural benefits. But too much of a good thing can be bad for coral reefs. Download this infographic | Infographic Text

Coral reef ecosystems support important commercial, recreational, and subsistence fishery resources in the U.S and its territories. Fishing also plays a central social and cultural role in many island and coastal communities, where it is often a critical source of food and income.

The impacts from unsustainable fishing on coral reef areas can lead to the depletion of key reef species in many locations. Such losses often have a ripple effect, not just on the coral reef ecosystems themselves, but also on the local economies that depend on them. Additionally, certain types of fishing gear can inflict serious physical damage to coral reefs, seagrass beds, and other important marine habitats.

Coral reef fisheries, though often relatively small in scale, may have disproportionately large impacts on the ecosystem if conducted unsustainably. Rapid human population growth, increased demand, use of more efficient fishery technologies, and inadequate management and enforcement have led to the depletion of key reef species and habitat damage in many locations.

3 0
3 years ago
How does motion change
seraphim [82]

Answer:

The motion of an object is determined by the sum of the forces acting on it; if the total force on the object is not zero, its motion will change. The greater the mass of the object, the greater the force needed to achieve the same change in motion. For any given object, a larger force causes a larger change in motion.

Explanation:

4 0
3 years ago
Read 2 more answers
Drag each item to indicate whether it describes a water wise city or a city that is wasteful
Sonbull [250]

The given question is incomplete however the complete question is attached in the form of an image.

Answer:

Water-wise cities -

Water management integrated into urban planning.

Full resources and energy used for wastewater treatment.

Local communities promote sustainable decision making.

Wasteful cities -

Local communities lack environmental awareness.

Almost all wastes dumped in landfills (This prevents wastes from getting recycled and also burdens the landfill's capacity.)

The Low percentage of stormwater separation

Explanation:

Water-wise cities are the cities that provide the proper management of the water including water treatment by utilizing full resources and energy. It helps in water management incorporated into urban planning. It is promoted by the local communities by sustainable decision making.

Wasteful cities are cities that have poor waste management. The local communities lack environmental awareness in such cities and dumped most of the wasted in open landfills and prevent recycling it and affect the ecosystem.

7 0
3 years ago
New ocean crust is formed at?
umka2103 [35]
It is formed at Divergent boundaries, two tectonic plates diverge from one another. New oceanic crust is being formed by hot molten rock slowly cooling and solidifying. The crust is very thin.
4 0
3 years ago
Read 2 more answers
Which of the following characteristics distinguishes fungi from other organisms
ryzh [129]
<span>..The following characteristic distinguishes fungi from other organisms: D. Use absorption to obtain nutrients ...</span>
4 0
4 years ago
Read 2 more answers
Other questions:
  • Plant and animal cells release energy stored in the bonds of glucose molecules when they perform
    15·1 answer
  • The number one factor for determining what living things can survive in a body of water is
    7·1 answer
  • A heterotrophic multicellular organism that does not have cell walls is called a(n) _______.
    5·1 answer
  • Systematists have used a wide variety of traits to reconstruct the phylogenies of particular groups of organisms. Which one of t
    7·1 answer
  • Which structure is most similar to an alluvial fan in formation and composition? f watershed g river h lake j delta?
    12·1 answer
  • Are males more likely to have hypophosphatemia than females explain
    5·1 answer
  • PLZ ANYOME HELP? <br> Uh sorry for asking a lot-
    14·2 answers
  • Explain the difference between species richness and species evenness.
    11·2 answers
  • Why are cells described as the "building blocks" of all living things? Plz help me
    9·2 answers
  • Which energy resource is inexpensive, helps with garbage disposal, and reduces the need for landfills, protecting habitat?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!