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
Hunter-Best [27]
3 years ago
6

Sarah wants to know which brand of nail polish lasts the longest without chipping. She buys 4 types of nail polish – Essie (whic

h she normally uses,) Butter, OPI, and Sally Hansen. Every Sunday for 4 weeks she paints her nails with a different brand of polish and records how many days she lasts before she gets her first chip. She makes sure to use the same bottom coat and top coat with each type of polish, and she makes sure to do the same weekly routine each week so that her nails aren’t getting treated more roughly different weeks.
Biology
1 answer:
Gwar [14]3 years ago
4 0

Answer:

This is an example of scientific investigation and all the elements that compose it.

Explanation:

Sarah is doing a scientific investigation regarding the nail polishes she uses. We can see this, because Sarah is using the elements that make up this type of investigation to reach a conclusion about the enamels. These elements are:

Independent variable: Element that influences the appearance of a controlled and evaluable result, such as the enamel that Sarah will use on her nails.

Dependent variable: Element that is influenced by the dependent variable and promotes the visualization of a result, such as the length of time that the enamels can remain on the nail without chipping.

Experimental group: Element that allows the study of the interaction of these variables and the result developed through it, such as Sarah's enamel marks.

Control group: Element where only the independent variable is applied. As the action of the dependent variable does not exist, the observed result is the same that would be perceived if the study was not taking place, such as the day when Sarah did not paint her nails.

Constant: Elements that are exactly the same throughout the experiment, such as the person who conducted it, the time the study will be carried out, the nail care routine and the lower and upper layers of the enamels used.

You might be interested in
13. A typical pollen grain of a seed plant might contain
Vesna [10]

Answer:

Male and female gametophytes

4 0
3 years ago
Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrog
posledela

Answer:

algal growth due to eutrophication

Explaination:

Eutrophication is where these nutrient rich compounds mix with nearby water sources and promote the growth of large amounts of algae. Algae go through respiration and take up the dissolved O2 in water which causes these areas to experience low O2 levels. Everything needs O2 to survive thus nearby organisms and plants die out creating dead zones.

7 0
3 years ago
Read 2 more answers
During fertilization, a __________ and __________ combine to form a __________.
sineoko [7]
During fertilization, a _sperm_ and _egg_ combine to form a _zygote_.

Sperm and egg (gametes) are both haploid, and the fertilized zygote is diploid.
6 0
3 years ago
Most of the organisms grouped into which domain are known as extremophiles?
frutty [35]

Answer:

i pretty sure its c but i could be wrong

Explanation:

6 0
3 years ago
Read 2 more answers
What do you think when you hear DNA? 13pts
mrs_skeptik [129]
Genetics, double helix, cells
7 0
3 years ago
Read 2 more answers
Other questions:
  • In 10 or more sentences describe te terms of Indicator, carbohydrates size, osmosis and diffusion
    5·1 answer
  • How was the theory of plate tectonics developed?<br><br> Help faaaaaaaaaaaaaaast!
    8·2 answers
  • Why are Abiotic factors essential (important) for organisms to survive?
    5·1 answer
  • ¿Quienes hicieron posible la formación de la atmósfera?
    6·1 answer
  • Air is a mixture of freely moving molecules of different gases. peeling an onion releases molecules you can smell into the air.
    14·2 answers
  • What is the carbon cycle?
    15·1 answer
  • When the double stranded DNA helix is unwound, two single strands of DNA are formed. These strands have to be stabilized because
    9·1 answer
  • I need help asap Currently, which event having the greatest effect on the entire interconnected ocean ecosystem?
    9·2 answers
  • "Response to stimulus" refers to
    15·2 answers
  • As women age, many experience an increased sense of urgency to void, as well as an increased risk of incontinence. this is usual
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!