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
galina1969 [7]
3 years ago
14

A student wants to know what effect temperature will have on the germination rate of radish seeds.  To test this, she obtains 3

petri dishes and 60 radish seeds.  She places 20 seeds in the first petri dish and stores it at room temperature.  She places another 20 seeds in the second dish and places it in the freezer.  She places 20 seeds in the third petri dish and places the dish in an incubator.  Over the next two weeks, she waters the dishes daily and records the number of seeds germinate.  At the end of the experiment she calculates the germination rate for the seeds at each temperature. 
Hypothesis: ____________________________
Experimental Group: ____________________________
Control Group: ____________________________
Manipulated Variable (IV): ____________________________
Responding Variable (DV): ____________________________
Constants: ____________________________
Biology
1 answer:
kondaur [170]3 years ago
8 0

Answer:

Hypothesis: IF the temperature is high, THEN the germination rate of radish seeds will increase.

Experimental Group: 20 Seeds in petri-dishes placed in the freezer and incubator each

Control Group: 20 seeds stored at room temperature

Manipulated Variable (IV): TEMPERATURE

Responding Variable (DV): GERMINATION RATE

Constants: Amount of water, same amount of time (2 weeks)

Explanation:

- The hypothesis is a testable explanation given to an observed problem. A possible hypothesis is IF the temperature is high, THEN the germination rate of radish seeds will increase.

- Independent or manipulated variable is the variable that is changed or manipulated variable in an experiment. The TEMPERATURE is the independent variable in this case.

- Dependent or responding variable is the variable that is measured in an experiment. In this case, the dependent variable is the GERMINATION RATE

- The experimental group is the group that receives the experimental treatment. In this case, the experimental group is the 20 Seeds in petri-dishes placed in the freezer and incubator each.

- The control group is the group that does not receive the experimental group. In this case, the control group is the 20 seeds stored or placed at room temperature.

- Constants are the variables that are kept unchanged throughout the experiment. In this case, the constants are Amount of water, same amount of time (2 weeks)

You might be interested in
*EXTRA PTS* what is the speed at 6 seconds
pogonyaev
12is the speed of 6 seconds cause the bigger the secs the slower
5 0
2 years ago
How many different codons can code for the amino acid tryptophan (Trp)?
Minchanka [31]
The chart very nicely lays out the amino acid each codon corresponds to. You're looking for "trp" in the chart, which only appears once, beside the UGG codon. Therefore, only one codon codes for tryptophan.
7 0
3 years ago
Read 2 more answers
Where was the ring necked pheasant imported from
Firdavs [7]

They were imported from China into the United States in 1881.

The first successful release was in Minnesota in 1916.

Hope this helps! :)

4 0
3 years ago
Which factor is most likely to cause a faster rate of blood flow
Alekssandra [29.7K]

Answer:

Exercising

Explanation:

This happens because, when you exercise, the blood vessels in your muscles dilate (vasodilation) and as a consequence, the rate of blood flow is faster. The increased blood flow delivers more oxygenated blood to the working muscle.

4 0
3 years ago
What is an autonomous vehicle?
Elden [556K]

An autonomous car is a vehicle capable of sensing its environment and operating without human involvement. A human passenger is not required to take control of the vehicle at any time, nor is a human passenger required to be present in the vehicle at all. An autonomous car can go anywhere a traditional car goes and do everything that an experienced human driver does.

8 0
2 years ago
Read 2 more answers
Other questions:
  • Which type of tide is represented by the image below? Image of the sun, moon, and Earth in a straight line. An oval is around Ea
    6·2 answers
  • A student pushes a box with a total mass of 50kg what is the net force on the box if it accelerates 1.5 m/s2
    14·2 answers
  • Where is the majority of the inuit population located?
    15·2 answers
  • Aldosterone acts on the _______________ to cause reabsorption of sodium and water
    9·1 answer
  • Legumes enrich soil by adding nitrogen to it through their?
    11·1 answer
  • Project: Analyzing Genetic Variation WRITE YOUR FOUR PARAGRAPH RESEARCH PAPER in the space provided below. Restate your claim. D
    6·2 answers
  • Other than sunlight for energy, photosynthesis in plants need these two things that we breathe out. What are they ?
    15·2 answers
  • Conduction involves the transfer of electric charge or______.
    8·1 answer
  • Red blood cells usually live for about 120 days before they die and need to be replaced. Sickle cells are fragile — their membra
    11·1 answer
  • Which of the following does NOT describe the plasma membrane?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!