Independent variables (action of the disinfecting sprays) affect the dependent variables (Germ survival/growth). The control variables remain constant (temperature, light exposure, time). The hypothesis is a prediction (Clorox is more efficient in desinfecting surfaces than Lysol).
---------------------------------------------------------------
During an experiment, the researcher applies different treatments to the experimental groups to analyze their response. It is also useful to have a control group to observe how it responds when no treatment is applied. In these situations, the researcher compares three groups: a control group and two experimental groups. All the groups are identical in all aspects except for the independent variables.
The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment. The independent variable keeps constant in the control group. The experimental group receives the treatment. The researcher voluntarily changes the values of the independent variable to observe how it affects the dependent variable. There can be several experimental groups.Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is modified to analyze its effects on another variable. The researcher changes on purpose the independent variable to observe the response of the dependent variable. Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. Controlled variables are kept constant in the control groups and the experimental groups. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.⇒ The independent variable → Action of the disinfecting spray Clorox and Lysol
⇒ The dependent variable → Germ survival and growth
⇒ The controlled variables → Environmental temperature, light exposure, time.
To confirm that the experiment is working we just need to compare periodically the three petri dishes to see how microorganisms are growing, if they are.
Hypothesis: Clorox is more efficient in desinfecting surfaces than Lysol.
-----------------------------
Related link: https://brainly.com/question/24468408
The scientific community disagrees about
A.the rate of global climate change
B.the occurrence of global warming
C. The need for action
D. All of the above
Answer:
the scientific community disagrees about ______. a. the rate of global climate change b. the occurrence of global warming c. the need for action d. all of ...
The scientific community disagrees about the rate of global climate change. The correct option is A.
What is scientific community?A wide variety of scientists from many fields interact with the scientific community. Interdisciplinary and cross-institutional activities are also important.
It contains various "sub-communities" focusing on specific scientific subjects and inside certain institutions.
The scientific method depends on the scientific community. The scientific community collaborates, reviews one another's work, fosters innovation, and does many other things.
The rate of global climate change is a topic of debate among scientists. The scientific community as a whole accepts the existence of global warming.
Global temperature variations are referred to as global climate change.
Fossil fuels like oil, coal, and natural gas are to blame for global climate change because they are known to contribute to the atmosphere's rising greenhouse gas concentration.
Thus, the correct option is A.
For more details regarding scientific community, visit:
https://brainly.com/question/13181191
#SPJ2
Which statement reflects a question environmental scientists may try and answer?
How can natural resources be used efficiently?
What is the most effective dishwashing soap brand?
Why does coal burn hotter than wood?
How did the big bang theory affect the formation of the moon?
The statement that reflects a question environmental scientists will most likely answer is : ( option A ) How can natural resources be used efficiently
Environmental scientists collect and analyze data from samples of nature ( i.e. sand, air, water . e.t.c ) in order to study the environment while developing proper scientific methods to prevent any negative impact, on the environment at large.
Hence From the options one of the most important question an environmental scientist is most likely to answer is " How can natural resources be used efficiently"
Learn more : https://brainly.com/question/10881160
What is the most common way sandstone is weathered?
Answer:
Hope desripction Helps! - Akito
Explanation:
Weathering and erosion are most rapid in areas of high relief, such as volcanic arcs, areas of continental rifting, and orogenic belts. Eroded sand is transported by rivers or by the wind from its source areas to depositional environments where tectonics has created accommodation space for sediments to accumulate.
Image result for What is the most common way sandstone is weathered?
Weathering and Transport of Sand
The grains of sand in a sandstone are usually particles of mineral, rock, or organic material that have been reduced to "sand" size by weathering and transported to their depositional site by the action of moving water, wind, or ice.
Answer:
Weathering and Transport of Sand
The grains of sand in a sandstone are usually particles of mineral, rock, or organic material that have been reduced to "sand" size by weathering and transported to their depositional site by the action of moving water, wind, or ice.
Explanation:
What is a trace element found in the human body
Essential trace elements of the human body include Zinc (Zn), Copper (Cu), Selenium (Se), Chromium (Cr), Cobalt (Co), Iodine (I), Manga-nese (Mn), and more.
An outcome of trace elements deficiencies is reduced activity of the concerned enzymes.
If a fruit fly develops legs on its head instead of antenna, what is the most likely reason?
O Chromosomal non-disjunction resulting in extra sets of genes
O Conjugation errors during reproduction
O Frameshift mutation during transcription of mRNA
O Mutation affecting gene expression
Mutation affecting gene expression is the most likely reason for a fruit fly to develop legs on its head instead of antenna.
WHAT IS MUTATION:
Mutation is the process whereby an alteration or change occurs to the sequence of DNA either by mistake during replication or caused by mutagens.WHAT IS GENE EXPRESSION?
Gene expression is the process by which the information encoded by genes are used to synthesize products such as proteins etc. In the organism described in this question, the fruit fly develops legs on its head instead of antenna, it's most likely because the genes encoding the information for the synthesis of antennas on its head have been CHANGED OR MUTATED, hence, causing something else to be formed there.Therefore, mutations affecting gene expression can cause legs to be formed on the head of fruit fly instead of antenna.
Learn more: https://brainly.com/question/15159232
what are three main types of geothermal power plants
Answer:
They are:
Dry steam
Flash steam
Binary cycle
Which of the following describes the next paths for nitrates in the soil?
I. Diffusion from soil to air
II. Denitrification by bacteria
III. Assimilation into plants
-I, II, and III
-II and III
-I and II
-II only
The answer is I and II
Answer:
ll. and lll.
Explanation:
The next paths for nitrates in the soil is : ( B )
II. Denitrification by bacteria
III. Assimilation into plants
Nitrates get into the soil through the decomposition of plant residues and other organic matter. also Nitrates can also be deposited into the soil through Animal dungs , Nitrogen fertilizers and rainfall.
When Nitrates are in the soil they are moved by water and some nitrates in coarse soils are lost through Denitrification ( a process of converting soil nitrates to gaseous nitrogen by anaerobic bacteria). while nitrates that are not lost are assimilated into plants.
Therefore the next paths for nitrates in the soil is Denitrification by bacteria and Assimilation into plants.
learn more : https://brainly.com/question/12301422
give reason why reptiles are called crawling vertebrate
Answer:
Because they crawl on ground to move from one place to another
What kinds of things do the functional domains of proteins interact with
(at molecular level)?
Protein domains are evolutionarily conserved regions of the proteins that play different biological functions. These regions can interact with DNA, RNA, and proteins (protein-protein interactions).
In DNA binding proteins, protein domains interact with DNA in order to regulate transcription, replication, recombination, etc.DNA binding proteins such as transcription factors interact through amino acids localized in specific domains with the atoms exposed in the major groove of DNA. These atoms vary depending on the nucleotide that interacts with the transcription factor.Some of the most common motifs observed in protein domains that interact with DNA include, among others, the basic helix-loop-helix motif, leucine zipper motif, zink finger motif, etc.RNA-binding proteins (RBPs) are proteins having specific domains that interact with RNA to form ribonucleoproteins.In protein interactions, protein domains interact with each other.Learn more in:
https://brainly.com/question/4705252?referrer=searchResults
Students that get more sleep have better grades what is the iv dv control group and hypothesis
Answer:
gold
Explanation:
7'!&-:;;-!5(&6;&-%;-:%&!
the liter is a measurement of what quantity
Answer: Please refer to:
volume
Litre (l), also spelled liter, unit of volume in the metric system, equal to one cubic decimetre (0.001 cubic metre). From 1901 to 1964 the litre was defined as the volume of one kilogram of pure water at 4 °C (39.2 °F) and standard atmospheric pressure; in 1964 the original, present value was reinstated.
Explanation:
I don't know if I answered the question correctly. Not sure but hope it helps.
what is inferior to tibia
Answer:
The bottom (inferior) of the tibia rests on the top and to the medial aspect of the talus. The fibula rests on the lateral portion of the tibia against the fibular notch and extends down over the talus. The three bones make up the largest part of the ankle.
Explanation:
Every organism reproduces, and when it does, what is the molecule used to pass the genetic code down to the offspring?
Question 7 options:
Cells
Water
DNA
Food
pleas help
Answer:
I'm too du6b but I think its DNA.
What Type Of Anesthesia Is Used During Surgery?
Answer:
There are four main categories of anesthesia used during surgery and other procedures: general anesthesia, regional anesthesia, sedation (sometimes called "monitored anesthesia care"), and local anesthesia.
Answer:
general anesthesia, regional anesthesia, sedation anesthesia and local anesthesia are Used During Surgery
What are the impacts and consequences of climate change on the environment, humans and agriculture sector
Answer:
Agriculture is an important sector of the U.S. economy. The crops, livestock, and seafood produced in the United States contribute more than $300 billion to the economy each year.[1] When food-service and other agriculture-related industries are included, the agricultural and food sectors contribute more than $750 billion to the gross domestic product.
Explanation:
Agriculture and fisheries are highly dependent on the climate. Increases in temperature and carbon dioxide (CO2) can increase some crop yields in some places. But to realize these benefits, nutrient levels, soil moisture, water availability, and other conditions must also be met. Changes in the frequency and severity of droughts and floods could pose challenges for farmers and ranchers and threaten food safety.
Are castor seeds dispersed by explosio6n
what is lateral to trunk
Explanation:
Movement of the trunk to the left or right, which involves movement of the shoulder towards the hip on either side. The movement is brought about by the action on one side of the body of the external and internal oblique muscles, and the quadratus lumborum.....
Describe how energy is different from work
Answer:
Energy is the ability to do work. Work refers to any change in the position, shape or size of an object as a result of its contact with another object - like dropping a rock on your foot. The amount of energy that is exchanged between two objects when they come into contact is called mechanical energy. This type of energy transfers all kinds and forces from one part of an object to another and can be transferred in many directions at once (for example, heat). Work and potential energy are related but not identical topics. Potential energy includes work done by gravity pulling things down and using elastic forces squeezing something together like a spring.
Explanation:
Answer:
Energy exists in many forms, but we can group them into three general categories: kinetic energy, potential energy and thermal energy. Work is the transfer of quantities of one form of energy to another (i.e., from a muscle to its surroundings), or vice versa. Kinetic and potential energies are classically called "energy" because they are not dependent on a particular point in space for their existence; indeed, all physical systems contain both kinetic and potential energies.
The tendency to apply force and a change in distance to an object is work, on the other hand, energy is the tendency to create or supply work.
• Energy is the outcome of the work performed, while work is the tendency to supply force and a change in distance to an object.
• Energy is illustrated as the property of a system, while work is an action, which is done on the thing that leads to displacement.
• Energy is the outcome of the work done, while work is the activity performed on the thing, which results in certain kind of displacement.
Thus, there is a significant difference between energy and work.
To know more about:
https://brainly.com/question/17290830
Following animals are also known as ruminant animals:
A) Bovines B) worms C) Humans D) cats
Answer:
The correct choice is option A. Bovines
Explanation:
Ruminant animals chew the cud and that is mostly done by bovines such as cows and as well as buffaloes etc.
Scientific data is often presented in figure or graphical forms. Why are these useful tools for scientists?
Answer:
Since most of the data scientist collect is quantitative, data tables and charts are usually used to organize the information • Graphs are created from data tables • They allow the investigator to get a visual image of the observations, which simplifies interpretation and drawing conclusions
Explanation:
What uses technology to replace one or more genes in an organism?
Answer:
Genetic engineering uses technology to replace one or more genes in an organism.
Which of these is an organism that produces the same traits in
each generation?
a. hybrid
b.pea plant
C. chromosome
D. purebred
2.265 kg is the weight for a small bag of sugar. You are baking cupcakes for a school fund drive. It takes 100 g of sugar to make one batch of cupcakes. How many batches of cupcakes can you make with one small bag of sugar? (Show your work.)
The total batches of cupcakes that you make with one small bag of sugar will be 22 batches
From the question, we are given the following
The t of a small bag of sugar = 2.265kg = 2265grams
Since 100g of sugar to make one batch of cupcakes, then:
100g = 1 batch ... 1
In order to get the number of batches of cupcakes can you make with one small bag of sugar, we can write:
2265g = x ... 2
Divide both expressions;
100/2265 = 1/x
100x = 2265
x = 2265/100
x = 22.65 batches
Hence the batches of cupcakes that you make with one small bag of sugar will be 22 batches
Learn more here: https://brainly.com/question/19914553
If you were in charge of regulating the amount of net fishing %, which would you set the limit to in order to keep biodiversity of fish species above 370 in the coral reef?
(Hint-- look at your Net Fishing level chart on at the end of your gizmo direction sheet)
Question 3 options:
20%
40%
60%
80%
To keep biodiversity of fish species above 370 in the coral reef the amount of net fishing should bet set at: 20%
Although the net fishing level chart related to your question is missing a general answer have been provided within the concept of your question.
The coral reef is a major food source for Billions of people around the world due to the abundance of various aquatic species found there. therefore overfishing in the coral reef is a major threat to the biodiversity of fish species in the coral reef. also overfishing damages the coral habitat.
some of the several methods of fishing that occurs in the coral reef are :
use of non-selective gears ( nets and traps )use of conventional methods use of selective gears ( fishing trawlers ) and so onIn order to accommodate all these methods of fishing without overfishing the use of non-selective gears ( i.e. nets and traps ) should have a limit of 20% of all the fishing methods to keep biodiversity of fish species above 370 and also protect the Coral habitat better.
Learn more : https://brainly.com/question/14916961
Please write in your own words). The Science of Biology: Question 1: Explain how sunlight is the primary source of energy for your own life? Question 2: In terms of energy, what is the difference between glucose and ATP? Question 3: Explain the role of a hypothesis in a scientific investigation? ( Will Mark Brainliest if correct). ( Don't copy down what you find in books or websites).
Answer:
well sunlight is the primary source of anergy for your own life because plants use the sunlight to make food and make oxygen and humans need to breathe oxygen
help me please.......
Answer:
the pictures is blur and not clear
The physical location of an ecosystem in which a given species lives is called a a, habitat c. niche. b. tropical level. d. biotic zone
Answer:
habitat
Explanation:
Hope it helped!!!!!
All of the animals and plants inhabiting a forest form a(n) ________.
All of the animals and plants inhabiting a forest form a community
WHAT IS A COMMUNITY:
A community is an interaction of two or more populations of organisms in the same environment or habitat. Since a population comprises of individuals of the same species of organism, a community is made up of a mixture of different species of organisms. In this case, a collection of the different plant and animal species of a forest makes up the community.Learn more: https://brainly.com/question/23581550?referrer=searchResults
The goal of the scientific method is to provide
systematic observations or experiments.
or data from
The goal of the scientific method is to provide systematic observations, experiments and data from a research.
The scientific method of research provides a visible (systematic) observations, measurement and experiment on data to develop peer-reviewed theories that best explain the known data.
Scientific method of research includes the following steps:
Observation: Here, different questions are asked which must be measurable and answerable through experimentation.Perform a research: A minor research should be conducted based on the questions that are asked. this can be done from previous scientific studies.Establish a hypothesis: Make an educational guess that seeks to answer the question asked.Test with experiment: This is a quantitative test performed to validate the hypothesis made.Make an observation Analyze the dataDraw your conclusionsLearn more here:
https://brainly.com/question/497944
How does ocean pollution relate to conservation?
Answer:
Plastic poses a double danger.
Ocean trash can be broken into smaller pieces — known as microplastic — by sun exposure and wave action, after which it can find its way into the food chain. When it eventually degrades (which takes 400 years for most plastic), the process releases chemicals that further contaminate the sea.
Explanation:
