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
docker41 [41]
2 years ago
11

A student wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. To test this hypothesis, the stu

dent put the same amount of grass seed in 3 containers with the same type of soil. The student measured the growth at the end of the week. All plants received equal amounts of water and sunlight.
In the above experiment, what is the independent variable?
Biology
2 answers:
zloy xaker [14]2 years ago
7 0
The independent variable is the grass. <span />
Nikitich [7]2 years ago
3 0

Answer:

Fertilizer

Explanation:

The student wants to measure the affect of fertilizer on the growth rate of grass seeds.

Thus, fertilizer here is an independent variable while growth of grass seeds is a dependent variable

An independent variable is the one whose impact is studied on the dependent variable while a dependent factor is the one which is impacted by the variations in the independent variable.

All other factors such as type of soil , water and sunlight remains the same.

You might be interested in
What are electrons!!!!!
svp [43]

Answer:

Electrons are subatomic particles, whose electric charge is negative one elementary charge. They belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure.

Explanation:

4 0
3 years ago
Please help me answer at least one?<br>​
LenKa [72]

Answer:

1. Explain why predators need to eat more than primary consumers.  

Explanation:

Predators need to eat more than primary consumers because in the trophic pyramid, primary consumers are at the bottom which means they receive the most energy because they eat the plants. As the pyramid goes on upwards, energy is lost each time, so that means by the time it reaches the top of the pyramid their is only about 0.1% of the energy we started with when the primary consumers ate the producers. Meaning, the predators need to eat more than the primary consumers because although the predators eat more than the primary consumers, they still at the end of the day get the same amount of energy just one eats more than another.  

8 0
1 year ago
PLEASE HELP MEE<br>what instruments are used to forecast and measure tornadoes?
tester [92]

Explanation:

a barometer is one of the most common instrument used for weather forecasting and measuring tornadoes.

8 0
3 years ago
What is the primary information that a map shows ?
IceJOKER [234]
Where something is located

5 0
3 years ago
Which prossess is defined as breaking down rocks into smaller pieces without changing the rocks' compositions
soldier1979 [14.2K]

mechanical weathering

Mechanical weathering is the process of breaking big rocks into little ones. This process usually happens near the surface of the planet. Temperature also affects the land. The cool nights and hot days always cause things to expand and contract. That movement can cause rocks to crack and break apart.Mechanical weathering involves mechanical processes that break up a rock: for example, ice freezing and expanding in cracks in the rock.

3 0
3 years ago
Other questions:
  • Which is the duct that carries tears from the eye to the nasal cavity?
    14·1 answer
  • Contours that are spaced evenly represent a ______ slope
    5·2 answers
  • Williamson synthesis 2-propoxypropane from propene
    13·1 answer
  • Genetically-modified organisms (GMOs) have included corn crops engineered to produce a natural pesticide to kill a certain insec
    9·1 answer
  • Which is an accurate description of the processes used to turn the DNA code of a gene into a protein? A) Transfer RNA molecules
    12·2 answers
  • A primary active transport process is one in which __________.?
    7·1 answer
  •  This has been reduced in size, usually, over time and has less important function in some related organisms than in others.
    14·2 answers
  • tarah built a model that shows how the skeletal and muscular systems allow the human arm to bend. she used two wooden planks, a
    15·1 answer
  • Why are some people asymptomatic?
    5·1 answer
  • Which media format is most likely to be used for personal expression?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!