If conducted accurately identical investigations should produce similar results. Sometimes, errors like measurement errors, can
cause differences in results
Sandra and Jeremy are neighbors who tested different brands of seeds in their gardens for six weeks. They grew identical gardens
in their yards and recorded results. Each of them tried three brands of pea plant seeds and recorded the plants' heights at the end
of each week. They discovered Jeremy's plants were much taller on average than Sandra's plants every week.
Which statement describes a measurement error that may have caused such a significant difference in their results?
Sandra recorded her measurements in centimeters, while Jeremy recorded
his measurements in inches.
They both took measurements on Fridays, but Sandra took hers at 4:00 PM
and Jeremy took his at 5:00 PM
Sandra used a measuring tape to collect data, while Jeremy used a wooden
tuler to take his measurements
mining
D
Sandra measured her plants from the ground while Jeremy measured his
plants from the ends of their roots
Answers
Answer:
D Sandra measured her plants from the ground, while Jeremy measured his plants from the ends of their roots.
Explanation:
The statement that describes a measurement error is Sandra measured her plants from the ground while Jeremy measured his plants from the ends of their roots.
What do you mean by Seeds?Seeds may be defined as the unit of reproduction of a flowering plant, capable of developing into another such plant.
Three brands of pea plants are grown in the field of equal dimension, still, there may be a difference in their height that must be identified. This is surely due to a measurement mistake.
Therefore, it is well described above.
To learn more about Pea seeds, refer to the link:
https://brainly.com/question/10188284
Related Questions
A segment of a DNA molecule has the base sequence ATGAAC. Write a shorthand structure for this segment and for its complementary strand, using the symbols D for deoxyribose and P for phosphate.
Answers
Answer: See attached picture.
Explanation:
DNA or deoxyribonucleic acid is the name for the molecule that contains the genetic information in all living things. This molecule consists of two strands that wind around each other to form a double helix structure.
The basic unit of nucleic acids are called nucleotides, which are organic molecules formed by the covalent bonding of a nucleoside (a pentose which is a type of sugar and a nitrogenous base) and a phosphate group. So each nucleotide is made up of a pentose sugar called deoxyribose, a nitrogenous base which can be adenine (A), thymine (T), cytosine (C) or guanine (G) and a phosphate group.
What distinguishes one polynucleotide from another is the nitrogenous base, and thus the sequence of DNA is specified by naming only the sequence of its bases. The sequential arrangement of these four bases along the chain is what encodes the genetic information, following the following criterion of complementarity: A-T and G-C. So the sequence of these bases along the chain is what encodes the instructions for forming proteins and RNA molecules. In living organisms, DNA occurs as a double strand of nucleotides, in which the two strands are linked together by connections called hydrogen bridges.
The chemical convention of naming the carbon atoms in the pentose nucleotide pentose numerically confers the names 5' end and 3' end ("five prime end" and "three prime end" respectively). The 5'-end designates the end of a DNA strand that coincides with the phosphate group of the fifth carbon of the respective terminal deoxyribose. A phosphate group attached to the 5'-end allows the ligation of two nucleotides; for example, the covalent bonding of the 5'-phosphate group to the 3'-hydroxyl group of another nucleotide, to form a phosphodiester bond.
what material made of protein and dna is in the nucleus?
Answers
Answer:
I think it’s chromatin
Explanation:
Answer:
chromosomes look it up if you want
How fast do trees grow
Answers
Answer:
The rate at which trees grow varies depending on the species, environment, and other factors. Some trees can grow up to several feet per year, while others grow more slowly.
nts
am Proctor
Question 2
Animals have albinism if they are unable to produce the molecule melanin. The protein responsible
for making melanin is tyrosinase.
If this is the normal sequence for a section of the mRNA transcript for tyrosinase:
GCUGAUAGUCCU
And a rat has this version of the sequence:
GUGAUAGUCCU
Is this rat likely to have albinism? How do you know?
Second letter
First letter
U
с
A
UUC.
UUG}Leu
CUU
CUC
CUA
CUG
UCU
Phe
UCC
Leu
AUU
AUC lle
AUA
с
UCA
UCG
CCU
CCC
CCA
CCG
ACU
ACC
ACA
AUG Met ACG
GUU
GCU
Pro
UACJ
Ser
Thr
A
UAU Tyr UGC Cys
UAA Stop UGA Stop
UAG Stop UGG Trp
G
CAUT
CACJ
CGU
His
CGC
CAGGIn CGG
AAU
Asn
Arg
AGC Ser
AAGLYS AGG Arg
GAUR GGU
UCAG
DUA DUA D
10 pts
Third letter
Answers
Albinism is the result of cells that can't produce melanin, the pigment needed to color skin, scales, eyes and hair.
What hormone causes albinism?Albino people can have very little melanin or no melanin at all. Their coloration and vision may be impacted by this. Albinos typically have white or extremely light blonde hair, while some also have brown or ginger hair. How much melanin their body generates determines the specific colour.
Despite producing their own melanin, animals are unable to produce a large number of other colours. Although plants can create a variety of pigments, many animals get their colour from the food they consume. Many birds' striking colours don't come from the birds themselves; rather, it comes from the food they consume.
Melanin is created by melanocytes, specialised cells found in the skin, hair, and eyes. A alteration in one of these genes may result in albinism.
To learn more about albinism refer to :
https://brainly.com/question/14892783
#SPJ1
One of the challenges facing the world today is supplying enough food for the human population. Farming with genetically modified plants is a possible solution to this challenge. What is a concern with using GM plants?
A. Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
B. Farming with GM plants requires less land and energy, which may lead to lower food costs and an economic crisis for farmers.
C. GM plants require more insecticide use, which may increase the chance of chemical residues in the food supply.
D. Scientific studies on GM plants are not available so the effects of GM plants are unknown.
Answers
Answer:
Option A
Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
These organisms are prokaryotic cells, mostly
extremophiles.
Answers
Answer:
A extremeophile is a prokariyite,
Explanation:
what does dimensions mean
Answers
Answer:
you want to know what the dimensions are?
the dimensions are the height (up and down) and the base length (dotted line)
if 15% of the nucleotide in a DNA molecule contains guanine, what percentage of the nucleotides contain each of the other bases? Explain your answer. What scientist discovered this "rule"?
Answers
Meiosis Fill the blancs
1)During Prophase I homologous chromosomes form ___________ consisting of _______ chromatids.
2) _______________ is the process of ___________ chromosomes exchanging segments
3)Homologous chromosomes move to the middle of the cell during __________ of Meiosis
4)_________ _____________ results from the random alignment of chromosomes during Metaphase I of meiosis
Answers
Answer:
1) During Prophase I homologous chromosomes form *tetrads* consisting of *sister* chromatids.
2) *Crossing-over* is the process of *homologous* chromosomes exchanging segments.
3) Homologous chromosomes move to the middle of the cell during *Metaphase* of Meiosis.
4) *Genetic diversity* results from the random alignment of chromosomes during Metaphase I of Meiosis.
Explanation:
Choose a strategy to clone genes known only by a mutant phenotype in organisms with highly efficient transformation procedures and relatively small genomes.
a. cloning by complementation
b. direct sequencing of the mutant genome
c. PCR of the gene and transformation of an organism
d. cloning using a specific cloning vector
Answers
Answer:
Option a (cloning by complementation) `would be the correct choice.
Explanation:
In species containing extremely efficient transforming techniques as well as comparatively small genomes, cloning by rearrangement testing is performed to clone gene products mostly by a mutated gene as the rearrangement test was being used to detect mutations.This strategy for cloning through mechanism begins with identifying another yeast mutant that affects something like a plasmid representing a cloned genetic material.The other options in question aren't relevant to the particular circumstance. Therefore the answer to the above seems to be the right one.
Question 2 of 10What is an outcome of gene regulation?A. Each cell produces only the proteins it needs.O B. Each cell is able to produce only one protein.O C. Each cell contains the genes for only one protein.OD. Every cell produces all types of proteins.SUBM
Answers
Gene regulation is a way of controlling which gene in the DNA of a cell will be expressed. Various cells may express various sets of genes even if they have similar DNA.
Answer - A. Each cell produces only the proteins it needs.
All of the following best describes how does pollution affect a food web except?
A .Air pollution can block sunlight affecting plants.
B. Water pollution can kill plant species found a food chain.
C.Water pollution can eliminate population of first order consumers.
D. Water pollution can make secondary consumers better hunters.
Answers
Both the Dead Sea and the oceans contain salt water. The concentration of salt in freshwater is ------ that in salt water. The concentration of salt in the Dead Sea is ------ the concentration of salt in the oceans.
Answers
Salt in freshwater is less than that in salt water, and the concentration of salt in the Dead Sea is greater than the concentration of salt in the oceans.
What is concentration?The ratio of a constituent's abundance to the total volume of a mixture is called concentration. Mass concentration, molar concentration, number concentration, and volume concentration are four different categories of mathematical description.
The Dead Sea has a salinity of 33.7 percent, and the second-saltiest lake in the world is the Dead Sea.
Learn more about concentration here:
https://brainly.com/question/26255204
#SPJ1
ACCORDING TO MODERN THEORIES, WHICH OF THE FOLLOWING IS A FUNCTION OF HUMAN HAIR? MAINTAIN TEMPERATURE OF TRUNK & LIMBS, TRANSMISSION OF SEXUAL SCENTS, MAINTAIN TEMPERATURE OF THE HEAD, PROTECT FROM DEBRIS, EXPRESS NONVERBAL COMMUNICATION.
Answers
According to the modern theories, the function of human hair is: maintain temperature of trunk and limbs.
Hairs are the filament like structures that emerge out from the body through the skin. The hairs are made up of proteins like the keratin. The hair emerges from the hair root and the region flanking outside the skin is called shaft.
The normal range of body temperature in which all the organs can function appropriately is 36.5–37.5 °C. The hairs of the whole body are also involved in thermoregulation as they lie flat when the temperature is warm and rise up when the body feels cold.
To know more about hairs, here
brainly.com/question/5920967
#SPJ4
Within a toad population, brown spots (B) are dominant to green spots (b).
The table below shows the phenotype distribution of 250 toads in a
population over several generations. Using the data and Hardy-Weinberg
equations (p2 + 2pq +92; p + q =1) determine the allele frequency for band
explain what is happening in the population.
Answers
Answer:
The answer is B: been reduced three fold and the population is experiencing genetic drift
Explanation:
I took the exam.
Answer:
C: The frequency of b has been reduced three-fold. The population is experiencing genetic drift.
Explanation:
I just took the test
What are the levels of life from smallest to largest?
Answers
Answer:
Molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
What happens when continental and oceanic crush collides? Why?
Answers
Answer:
When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser.
Explanation:
This is because oceanic crust is naturally denser. ... This melting leads to heat being transferred upwards and uplifting the crust, eventually developing into a volcano.
There are challenges/limitations in rainwater harvesting in urban areas. List at least two with remedial measures for each. First person to give me a answer will get brainlliest and 30 points
Answers
The challenges/limitations in rainwater harvesting in urban areas include the following:
Unpredictable Rainfall.Regular Maintenance.What is Rainwater harvesting?This involves the collection and storage of rain water from roof tops etc. The water is then used for agricultural activities.
The remedial measures for the challenges mentioned above include the following:
Unpredictable Rainfall- Weather forecasts and efficient storage Regular Maintenance- Use of standard materials and efficient drainage systemRead more about Rainwater harvesting here https://brainly.com/question/1243231
Describe four different types of drugs and their impact on sports performance
Evaluate the impact of four different performance-enhancing drugs on performance in four different types of sport
Discuss, using relevant examples, why some individuals may resort to using performance-enhancing drugs in sport
Answers
Types of Drugs and their Impact on Sports Performance:
Anabolic steroids: Anabolic steroids are synthetic hormones that mimic the effects of testosterone. They are commonly used by athletes to increase muscle mass, strength, and endurance. However, they can also have negative side effects, including liver damage, heart disease, and hormonal imbalances.
Beta blockers: Beta blockers are used by athletes to control anxiety and reduce the effects of stress on the body. They are often used in sports such as archery and shooting, where steady hands and calm nerves are essential. However, they can also cause side effects such as dizziness, fatigue, and depression.
Human growth hormone (HGH): HGH is a hormone produced naturally by the body that stimulates growth and cell reproduction. It is often used by athletes to increase muscle mass and improve endurance. However, it can also have negative side effects, including joint pain, diabetes, and hypertension.
Erythropoietin (EPO): EPO is a hormone that stimulates the production of red blood cells, which carry oxygen to the muscles. It is often used by endurance athletes to improve their stamina and performance. However, it can also increase the risk of blood clots and strokes.
Impact of Four Different Performance Enhancing Drugs on Performance in Four Different Types of Sport:
Anabolic steroids in bodybuilding: Anabolic steroids are commonly used by bodybuilders to increase muscle mass and strength. They can lead to significant gains in muscle size and strength, but can also cause negative side effects, such as acne and hair loss.
Beta blockers in shooting: Beta blockers are commonly used by competitive shooters to reduce the effects of stress on their performance. They can improve accuracy and reduce tremors, but can also cause negative side effects, such as fatigue and dizziness.
Human growth hormone in endurance running: HGH is often used by endurance runners to improve their endurance and speed. It can lead to significant gains in muscle mass and improved performance, but can also cause negative side effects, such as joint pain and diabetes.
Erythropoietin in cycling: EPO is commonly used by cyclists to improve their endurance and stamina. It can lead to significant gains in performance, but can also increase the risk of blood clots and strokes.
Why Some Individuals May Resort to Using Performance Enhancing Drugs in Sport:
To gain a competitive advantage: Athletes may use performance enhancing drugs to improve their performance and gain a competitive advantage over others.
To achieve success and fame: Athletes may use performance enhancing drugs to achieve success and fame in their sport.
Pressure to perform: Athletes may feel pressure to perform at their best, and may resort to performance enhancing drugs to achieve this.
Financial gain: Athletes may use performance enhancing drugs to improve their performance in order to gain financial rewards or sponsorship.
Examples of athletes who have resorted to using performance enhancing drugs include Lance Armstrong, who used EPO and other drugs in cycling, and Barry Bonds, who used steroids in baseball.
Plants sustain continual growth in length by repeated cell division within these types of regions . A. Antheridia B. Archigonia C. Sepals D. Meristems E. Leave
Answers
Answer:
D. Meristems
Explanation:
Like every other living thing, plants also undergo growth in size (length and width). This growth in length is a characteristics of the cellular division that occurs in a region called MERISTEMS. Meristems are those part of a plants that contain tissues whose cells are always young and actively involved in cell division.
The cells in the MERISTEMS called TOTIPOTENT, which are found at the top or apices of root, shoot etc are involved in continual division, hence, the regions they are found visibly undergoes changes in length as cells multiplies in that region.
What kinds of things do the functional domains of proteins interact with
(at molecular level)?
Answers
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
Please help this is environmental science : )
Answers
Concept maps are diagrams that represent information visually.
What are examples of concept map?Concept maps are diagrams that represent information visually. Charts, visual organizers, tables, flowcharts, Venn Diagrams, timelines, and T-charts are a few examples of how they might be presented.Concept maps may provide a graphically explicit way to depict and analyze the complex relationships between the different parties that characterize environmental challenges.Environmental science aims to shed light on how life on Earth is maintained, what causes our numerous environmental issues, and how to address them. The field of environmental science and management studies the relationships and interactions between people and the environment.To learn more about Concept maps refer,
https://brainly.in/question/7618674
#SPJ1
9. The probability that a boy whose mother is heterozygous for a sex-linked trait having the trait is:
10. The probability that the daughter of a mom with a dominant disease-causing allele on the X chromosome and a dad with the disorder will be affected with the disorder is:
11. An unaffected man and an unaffected woman have a son with Lesch-Nyhan syndrome, an X-linked recessive trait. What are the chances that a daughter of this couple will inherit Lesch-Nyhan syndrome?
12. A man has the X-linked dominant condition CGH that produces dense hair on the face and upper body. What is the chance that he will pass it on to his daughters?
Answers
Answer:
Explanation:
The probability that the daughter of a mom with a dominant disease-causing allele on the X chromosome and a dad with the disorder will be affected with the disorder is 100%. This is because the daughter will inherit one X chromosome from the mom, which carries the dominant allele that causes the disorder, and one X chromosome from the dad, which is affected by the disorder.
Since the parents are unaffected, we can infer that they are both heterozygous carriers of the Lesch-Nyhan syndrome allele. If they have a son with the syndrome, we know that the son inherited the recessive allele from both parents. The chance that a daughter of this couple will inherit Lesch-Nyhan syndrome is 25%. This is because the daughter will inherit one X chromosome from the father, which does not carry the recessive allele, and one X chromosome from the mother, which has a 50% chance of carrying the recessive allele.
Since the condition is X-linked dominant, the man will pass on the dominant allele to all of his daughters. Therefore, the chance that he will pass it on to his daughters is 100%.
help asap
Rudolf Virchow's work resulted in the claim that all cells come from preexisting cells. How did this impact the creation of cell theory?
It significantly contradicted earlier claims about cells in cell theory.
It caused scientists to quit researching cells until new microscopes were invented.
It showed that cell theory is very misunderstood in the scientific community.
It added to our understanding of cells, completing the claims in cell theory.
Answers
Rudolf Virchow impact on the cell theory is that It added to our understanding of cells, completing the claims in cell theory.
The correct answer choice is option d
Rudolf Virchow contribution on the cell theory.It happens that Virchow proposed that " all cells comes from pre-existing cells ". This implies that a living cells can only come into existence only from a previously existing cells. This infact, gave more insight on cellular pathology. This works of Rudolf Virchow added more light to the understanding of cellular structures and functions.
Other cellular theories includes:
All living organisms are composed of cells.There is no life apart from the life of cells.All living organisms are either unicellular or multicellular organisms.The study of cell is known as cytology.
The scientist who is regarded as the father of cell is Robert Hooke.
In conclusion, the contribution of Rudolf Von Virchow gave us more understanding about the fundamentals of cells.
Read more on cell theory:
https://brainly.com/question/3142190
#SPJ1
lysogenic cycle reproduction steps
Answers
You are observing Oscillatoria under the 4X objective, and you want to increase magnification. When
you switch to the 10X objective, you cannot see the organism. What has appended and what should
you do?
Answers
A magnification of 4X objective is fairly modest. You should be able to hide a good chunk of the slide. With a 10x magnification, however, we can no longer see the oscillatory clearly because of the narrow depth of field. The oscillatory may now be visualized by gradually bringing the slide into focus using fine-tuning.
This is further explained below.
What is magnification?Generally, The practice of increasing something's perceived size, as opposed to its actual size, is referred to as magnification.
In conclusion, The magnification is quite modest when using a 4X objective. You have the capability of covering the majority of the slide. If we convert to 10x,
the magnification will rise; nevertheless, it will only concentrate across a tiny area, which will cause oscillatory to become blurry. Now, using fine-tuning in a methodical and careful manner, bring the slide into focus so that you can see the oscillatory.
Read more about magnification
https://brainly.com/question/3851549
#SPJ1
HELP THANK YOU
1. A yeast cell is placed into an anaerobic glucose medium. Through which process will the yeast produce ATP?
A. Alcoholic Fermentation
B. Calvin Cycle
C. Citric Acid Cycle
D. Electron Transport Chain
Answers
Answer:
well I think it's option A
When a yeast cell is placed into an anaerobic glucose medium. The process through which this yeast will produce ATP is known as Alcoholic fermentation. Thus, the correct option for this question is A.
What is Alcoholic fermentation?Alcoholic fermentation may be characterized as a complex biochemical process through which yeasts convert sugars to ethanol, and carbon dioxide, along with ATP which is an energy source.
Alcoholic fermentation occurs in yeast and other numerous bacterial species. According to this process, pyruvate gets converted into ethanol along with ATP in a two-step process. Pyruvate is decarboxylated to synthesize acetaldehyde, and finally, this is reduced by the action of NADH in order to form ethanol.
Therefore, the process through which this yeast will produce ATP is known as Alcoholic fermentation. Thus, the correct option for this question is A.
To learn more about Alcoholic fermentation, refer to the link:
https://brainly.com/question/12073833
#SPJ2
What type of molecule is represented by the model below?
Answers
The molecule represented below is that of a cholesterol. Therefore, option (C) is correct answer.
What is cholesterol?Cholesterol is waxy. It's not always "bad." Cells, vitamins, and hormones require it. But too much cholesterol is bad. Cholesterol has two origins. Your liver produces all your cholesterol. Animal meals supply the rest of your cholesterol. Meat, poultry, and dairy contain cholesterol.
Cholesterol can be written as the chemical formula C27H46O. According to this interpretation, it is made up of 27 atoms of carbon, 46 atoms of hydrogen, and one atom of oxygen. The structure of cholesterol has a core sterol nucleus that is surrounded by four hydrocarbon rings. These rings are made up of hydrogen and carbon atoms arranged in a circular pattern.
Learn more about cholesterol, here:
https://brainly.com/question/28330373
#SPJ1
What makes climate change research valid? A. Only a few scientists believe climate change is occurring B. Most climate change studies show variability
C. Most climate change studies are by unknown scientists
D. Many lines of evidence show climate
Answers
Answer:
The correct answer is D. Many lines of evidence show climate change occuring.
Explanation:
Answers A and C are obviously incorrect wich leaves B and D. Between those two, D seems the most logical.
Hope this helps:) Goodluck!
I need help in a test pls 35 points
Answers
Answer:
straight from desmos, make linear positive line with x intercept at 2 and y intercept at -1.
Explanation:
