[Explain why you choose that answer] [For 10 points]
A scientist wants to determine the best light wavelength for growing plants. He grows plants in four test groups as shown in the table below. What, if anything, was wrong with the experiment?
A. He should only grow one plant in each group.
B. He should only change the wavelength of light for each group.
C. He should add a control group with a CO2 level of zero ppm and a light intensity of zero percent.
D. There is nothing wrong with the experiment.
![[Explain Why You Choose That Answer] [For 10 Points] A Scientist Wants To Determine The Best Light Wavelength](https://brainimage.s3.us-east-005.backblazeb2.com/contents/attachments/KuqWPNexQEqG4sRLb1QqVQbm7WpbeqCk.gif)
Answers
Answer:
The correct answer is - option B. he should only change the wavelength of light for each group.
Explanation:
In any experiment or research, there should be only one variable that needs to change to see the effect of that variable on the dependent variable and other variables should be constant so there no other variables could influence the result of the experiment.
In this experiment, there is two variable are manipulated that are the different wavelength of light which is desired variable or independent variable in this experiment but CO2 level also changes in each group which should be constant but now it affects the experiment.
Related Questions
WISU
Miracle Micro-B contains
2.0 g of boron, a
micronutrient that is
vital to reproduction in
plants. We recommend
continuous application
of Miracle Micro-B to
your garden plants or
crops.
Based on this information, the student can conclude that boron is absorbed by plant
roots from soil and then -
F transported to reproductive tissues by the plant's shoot system
G stored in plant stems until the flowers are pollinated
H concentrated in the roots until the plant's reproductive tissues mature
J transported by the phloem to the stomata in leaves, where it attracts pollinators
Answers
Is sharks and crocodiles closely related
Answers
Answer:
More recent phylogenetic analyses, based on mitochondrial DNA, have suggested that the crocodile shark is closely related to either the megamouth shark or the sand sharks (Odontaspididae).
Answer:
yes??
Explanation:
look at the other answer
Define resource partitioning and how does this work?
Answers
Answer:
Resource partitioning is the division of limited resources by species to help avoid competition in an ecological niche. In any environment, organisms compete for limited resources, so organisms and different species have to find ways to coexist with one another.
Explanation:
Answer:
Resource partitioning is the division of limited resources by species to help avoid competition in an ecological niche.
Explanation:
In any environment, organisms compete for limited resources, so organisms and different species have to find ways to coexist with one another.
What causes the "plastic" nature of
the asthenosphere?
A. it is mostly water
B. it only found under the ocean
C. constant earthquake activity
D. heat from below
Answers
The heat from below causes the "plastic" nature of the asthenosphere. The correct option is D.
What is asthenosphere?The asthenosphere is the upper mantle's mechanically sluggish and ductile region.
It is located beneath the lithosphere, somewhere around 80 and 200 kilometers underneath the surface, and can extend up to 700 kilometers. However, the asthenosphere's lower boundary is not well defined.
Semi-plastic rock makes up the Asthenosphere. Because of Lithosphere has a lower density, it resides on top of the Asthenosphere, much like an iceberg or a block of wood does on water.
The lower mantle beneath the Asthenosphere is stiffer and less plastic. The outer core is located beneath the Mantle.
The "plastic" essence of the asthenosphere is caused by heat from below.
Thus, the correct option is D.
For more details regarding asthenosphere, visit:
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HELP ASAP ! QUESTION IS IN PICTURE !
Answers
Answer:
first and third one
Explanation:
animals need the oxygen they make. and animals eat the plants. if an animal doesnt eat plants it eats somthing that does. sorry for the typos.
which enzyme is responsible for creating a primer that allows the DNA replication process to start
Answers
Answer:
Primase
Explanation:
Primase: the enzyme responsible for initiating synthesis of RNA primers on the lagging strand during DNA replication.
Answer:
Primase
Explanation:
How do energy and matter move through an ecosystem?
A)Energy cycle, matter flows
B)Energy flows, matter cycles
C)Both energy and matter cycle
D)Both energy and matter flow
Answers
Answer:
B. Energy flows, matter cycles
A section of a topographic map is shown below.
What is the difference in elevation in meters between Point X and Point Y on the map?
Answers
Answer:
360 m
Explanation:
Answer:
fish
Explanation:
moment
What are causes of ethical issues in business?
no hidden fees
harassment
corruption
unfair treatment of workers
HELPP
Answers
Answer:
Harassment, Corruption, and Unfair treatment of Workers
Explanation:
Business Entrepreneurship EDG 2021
Harassment, Corruption, and Unfair treatment of Workers.
What are ethical issues?When a particular action, scenario, or judgment conflicts with the moral standards of a society, there is an ethical problem. Since any of their actions could be questioned in terms of ethics, both people and companies could be implicated in these disputes.
These problems can arise in a person's interactions with other people or in their interactions with organizations, and the same is true for organizations.
These disputes can occasionally be legally risky since certain potential solutions may go against the letter of the law. In other cases, the problem might not have legal repercussions, but it might cause a backlash from outside parties.
Therefore, Harassment, Corruption, and Unfair treatment of Workers.
To learn more about ethical issues, refer to the link:
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Where do you look in a plant cell to find dividing cells
Answers
Answer:
I believe you would want to look in the meristem of the plant
Explanation:
Between a Black father bear (genotype BB) and a Brown mother bear (genotype bb), they had several baby bears.Black fur allele (B) is dominant overthe brown fur allele (b), what is the probabilityof their offspringhave blackfur?
Answers
Answer:
100% or 1
Explanation:
This question involves a gene coding for fur color in bears. According to the question, black fur allele (B) is dominant over the brown fur allele (b). This means that a bear heterozygous for fur color (Bb) will be phenotypically black.
In this question, a black father bear (genotype BB) and a brown mother bear (genotype bb) were crossed, the baby bears will all have a genotype Bb (see punnet square in the attached image). Since all the offsprings of this cross have genotype Bb, this means that 100% will have black fur.
The hydrophobic effect is related to the fact that water is most stable when it has the most hydrogen bonds and that nonpolar molecules decrease the number of those bonds. True or false
Answers
Answer:
True
Explanation:
When a hydrophobe is dropped in an aqueous medium, hydrogen bonds between water molecules will be broken to make room for the hydrophobe; however, water molecules do not react with hydrophobe. This is considered an endothermic reaction, because when bonds are broken heat is put into the system. The hydrophobic effect is considered to be the major driving force for the folding of globular proteins. It results in the burial of the hydrophobic residues in the core of the protein. It is exemplified by the fact that oil and water do not mix and was described well by G. S. Hartley in 1936. 1 Hydrophobic effect. The hydrophobic effect increases the thermodynamic activity of large hydrophobic molecules of metal complexes formed in the aqueous phase of solvent extraction systems, which promotes their transfer from the aqueous to the organic phase.
What two levels of classification make up a scientific name? out of these: domain, kingdom, phylum, class, order, family, genus, species
Answers
Answer:
genus and species
Explanation:
Species is a class of individuals and genus is the rankings right below species
1. Which of the following are carcinogens (risk factors that are known to cause cancer)? a. harmful chemicals
b. genetic factors
c. excessive exposure to UV rays
d. all of the above
e. none of the above
Answers
Answer:
d. all of the above
Explanation:
which is considered a scientific observation?
Answers
Answer:
Observations are receiving knowledge of the outside world through our senses, or recording information using scientific tools and instruments.
Any data recorded during an experiment can be called an observation.
Answer: Mahir noticed the plants he watered grew taller than those with less water.
Explanation:
What role did the detergent play when added to the strawberry solution?
Answers
Answer:
when added the salt and detergent mixture to the smashed strawberries, the detergent helped lyse (pop open) the strawberry cells, releasing the DNA strands could gather and clump,making it easier for you to see them.
45. If we put ANY type of cell in pure water: a) is pure water considered hypotonic, hypertonic or isotonic? b) would the cell shrivel or swell? c) what would happen to its turgor pressure (water pressure inside cell): increase or decrease?
Answers
Answer:
Explanation:
Pure water is an hypotonic solution that allows for diffusion of water into the cell and the cell will begin to swell.
The movement of water into the cell will make the cell swell but if water is moving outside the cell will collapse and shrink.
The turgor pressure is usually found withing the cell it ensures the movement of solutes when water is taken into the cell, the turgor pressure will increase. When water is taken out of the cell, the pressure will reduce.
When making a Punnett square the alleles of the mother and father are written at the top and side of the four square box. True or False
Answers
It is True that when making a Punnett square the alleles of the mother and father are written at the top and side of the four square box.
Answer:
True
Explanation:
There is one letter per box on the top two, and left two.
Canals such as the one shown in the image are artificial waterways built to allow the
movement of large ships that cannot travel along shallower, natural waterways.
Which of these is an advantage that a system of canals might bring to a city?
Answers
Answer:
b
Explanation:
HELP ASAP
PLEASE !!!!
Why is suburban sprawl tightly linked with environmental problems caused by
transportation?
A. Commuters who live in suburbs are dependent on automobiles that emit air
pollution.
Х
B. Commuters who live in suburbs are more likely to walk and suffer from air
pollution
C. Commuters who live in suburbs are dependent on mass transit systems that
emit air pollution.
D. Commuters who live in suburbs are dependent on mass transit systems that
add to water pollution.
Answers
Commuters drive personal vehicles to their places of work: offices, manufacturing plants etc.
Some may use car pooling or mass transit like buses. But too many want the luxury and convenience of coming and going on their own terms.
IMHO car pooling and mass transit needs to be used more to reduce environmental harm.
Which concept is part of the modern evolutionary theory, but not Darwin’s original theory?
Answers
What is the relationship between a protein, the cell, and DNA?
A. DNA is produced by a protein which is produced in the cell
B. Protein is composed of DNA which is produced in the cell
C. A cell is composed of DNA and protein
D. DNA controls the production of protein in the cell
Answers
Answer:
B. Protein is composed of DNA which is produced in the cell
Explanation:
Answer:
B. Protein is composed of DNA which is produced in the cell
Explanation:
The option (B) is the relationship between a protein, the cell, and DNA.
Why are barriers sometimes placed on trade?
Answers
Answer:
Both tariffs and subsidies raise the price of foreign goods relative to domestic goods, which reduces imports. Barriers to trade are often called “protection” because their stated purpose is to shield or advance particular industries or segments of an economy.
Explanation:
Which verb correctly completes this sentence
The cabins are empty ___ to be renovated.
A. has
B. is
C. have
D. can
E. was
Answers
Answer:
has ?
Explanation:
Answer: The answer is A (has)
Explanation:
3. Which of the following is the reactant of photosynthesis?
Answers
Answer: i dont see a question but The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll,
Explanation:
im not sure if you need this but while the products are glucose (sugar), oxygen and water.
3. If tall eyeballs (T) are dominant to short eyeballs(t),
give the genotypes that are possible for members of Mr.
Krabbs' family.
Tall eyeballs =
1
Answers
Answer:
Tt, TT
Explanation:
Dominant genes are genes that express themselves over recessive genes. This are expressed on such individual and are visible phenotypically. While recessive genes are genes whose effect are masked and not expressed. They may be present in the genome of an individual but are not usually expressed.
For an individual with a dominant tall eye ball(T)over short eye ball(t), Tall eye ball will always be expressed as TT having similar allele or Tt with a different allele but in a dominant form.
which of the following best represents a water molecule
Answers
Reflecting telescopes use mirrors as well as lenses.
Please select the best answer from the choices provided
T
F
Answers
Answer: true
Explanation:
what is the name for the underground layer of permeable rock that contains water
Answers
Answer:
aquifer
Explanation:
Answer:
a tunnel or a sewer
Explanation:
Explain the Importance of water in your body
PLEASE HELP RN ASAP
Answers
Answer:
Your body uses water in all its cells, organs, and tissues to help regulate temperature and maintain other bodily functions. Because your body loses water through breathing, sweating, and digestion, it's important to rehydrate by drinking fluids and eating foods that contain water.
Answer:
Water is needed for your digestive track as it digests foods. As water is also needed for each cell to properly function in your body.
