Answer:
- Accuracy is the degree by which the measures obtained in an experiment and/or observational procedure are associated with true values.
- Precision is the level of reproducibility that these measurements exhibit in the same (constant) conditions.
- Reproducibility indicates the level of agreement of the results when they are obtained by different researchers by applying the same experimental and/or observational procedures.
Explanation:
In a scientific investigation, it is imperative to achieve higher levels of accuracy and precision when realizing measurements because it ensures that the information is correct (without mistakes). Thus, researchers always try to use better equipment and instrument to make their measurements. Reproducibility is important because it is the only condition that scientists can guarantee to other researchers when they arrive at a result.
pls helppppoooopppppoppppp
Answer:
direct observation
Explanation:
What are functions of the roots in seed plants? (Choose all that apply)
stores food for the plant
aids in reproduction of the plant
anchors the plant
absorbs nutrients for the plant
Answer:
stores food for the plant
aids in reproduction of the plant
absorbs nutrients for the plant
Vhat is the correct formula for trisilicon hexafluoride.
Answer:
xenon hexafluoride.
Explanation:
Answer:
Si₃F₆
Explanation:
What is the optimal pH for Enzyme B?
Answer:
6,7.77.0
Please correct Ok ?
IF you see something dark or with a pole like figure then run and hide if you hear what it says it already too late
Answer:
stop being spoopy im scurred (._.)
Explanation:
eh still not scarry
~(￣▽￣)~
Which mutation below would result in the greatest amount of change in the proteins that code for a particular trait?
(Please help I will reward)
A. inserting three nucleotides
B. deleting three nucleotides
C. deleting one codon
D. deleting two nucleotides
Answer:
Mutations are errors in codons caused by changes in nucleotide bases. Some mutations may not have much effect. For example, if the codon GAA becomes the codon GAG, because the genetic code is degenerate, the codon will still code for the amino acid glutamate. Such ineffectual mutations are called silent mutations. Some mutations, however, can have a huge affect on coding for amino acids, which can in turn affect what proteins are produced, which can have a profound effect on cellular and organismal function.
2. Running water can be used as an energy
source to produce _____
power.
running water can be used as an energy source to produce hydroelectric power.
Describe the role of a nebula in the life cycle of a star. Please use your own words
Answer:Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine brightly for many years. The exact lifetime of a star depends very much on its size.
A star can be defined as a giant celestial (astronomical) object that is made up of a luminous sphere of plasma bounded together by its own gravitational force.
Generally, a star consists of two (2) main interstellar hot gas and these are:
I. Hydrogen (H).
II. Helium (He).
Some of the examples of a star are;
Sun (the closest to planet Earth). Antares. Canopus. Vega. Betelgeus.
A nebula simply refers to a low-density cloud of interstellar hot gas (hydrogen and helium) and dust.
Basically, a nebula is needed for the creation or formation of a star.
Hence, the role of a nebula in the life cycle of a star include the following:
Stage 1: The temperature increases in the center of a nebula, thereby, causing the small nuclei of atoms to fuse.
Stage 2: The nebula gets hotter and brighter as the nuclear fusion sets off a chain reaction while providing enough energy to turn the nebula into a star.
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Which statement is evidence that the components of the genetic code are common to all organisms?
A. All animals have the same four nitrogenous bases in common with each other.
B. All eukaryotes have the same four nitrogenous bases in common with each other.
C. All living organisms have the same four nitrogenous bases in common with each other.
D. All prokaryotes have the same four nitrogenous bases in common with each other.
Answer:
C. All living organisms have the same four nitrogenous bases in common with each other.
Explanation:
Because all living organisms have the same 4 nitrogenous bases in common with each other but different sequences.
Conservation of mass the mass of a whole object
Answer:
Explore the Law of Conservation of Mass by demonstrating that the mass of a whole object is always the same as the sum of the masses of its parts. All objects and substances in the world are made of matter. ... Matter has two fundamental properties: matter takes up space and matter has mass.
Explanation:
Difference between "Releasing" and "Inhibiting" hormones?
1.Name one living (biotic) and non- living (abiotic) means of seed dispersal
that is involved in helping plants with seed dispersal.
2. What is the advantage for a plant to produce fruit that are delicious to
animals?
Answer:
1.abiotic- air and biotic-birds
2.producing delicious and good fruits for animals protect and help them to spread. delicious food attract animals like birds and other animals who are feed on them. when they eat the fruits and the seeds pass by unharmed. these way the seed dispersal occur of a plants.
Seed dispersal is a movement transport and spread of the seeds away from the parent plants. As plants have very limited mobility and transportation also includes some of the abiotic factors.
Winds, waves, gravity, and many more abiotic form of seed seed dispersal have been found. The biotic forms of seed dispersal include man, animals and birds. The more delicious is the plant the more is the chance of seed dispersal and hence is an added advantage to the plants. The seeds remain unharmed and many animals like to feed on them.Learn more about the living (biotic) and non-living (abiotic) means of seed dispersal.
brainly.com/question/13128124.
How can we conserve energy and instead of wasting energy?
Answer:
Adjust your day-to-day behaviors.
Replace your light bulbs.
Use smart power strips.
Install a programmable or smart thermostat.
Purchase energy efficient appliances.
can somebody do 4 and 5 for me
Answer:
4. According to what is observed in the diagram, the maltose (substrate) binds to the maltase (enzyme) to obtain glucose molecules (product), in a process of hydrolysis of the maltose.
5. Three factors that can affect intestinal maltose activity - slowing it down or stopping it - are temperature, pH and substrate depletion.
Explanation:
4. Enzymes, such as maltase, have the function of making a reaction faster and decreasing the activation energy. Maltase is responsible for breaking down a maltose molecule, a dimer, into two glucose monomers, which is a hydrolysis reaction of the bonds that hold glucose molecules together.
5. There are several factors that can cause the decrease or cessation of the activity of an enzyme. Enzymes are activated when substrate is available and work best under ideal temperature and pH conditions. When there are alterations of these factors, the enzyme will reduce or stop the reaction in which it intervenes.
pH: when the pH increases or decreases it produces a decrease in the speed of reaction that catalyzes an enzyme. Very high or low pH levels can denature the enzyme and make the expected reaction not occur. Temperature: like pH, changes in temperature can slow or stop maltase activity. Substrate availability: It is a fact that when the specific substrate of an enzyme becomes depleted, the rate of reaction slows down, stopping when no substrate is available.Using the above diagram, what does the body make in response to a vaccine?
Answer:
antibodies
Explanation:
Vaccines are like a training course for the immune system. They prepare the body to fight disease without exposing it to disease symptoms. When foreign invaders such as bacteria or viruses enter the body, immune cells called lymphocytes respond by producing antibodies, which are protein molecules
I've been stuck on this for a while, any help?
Explanation:
wheres the question? haha๑๑
any three importance of measurements
descriptive, diagnostic, and predictive. Descriptive is the most basic form of measurement.
During a discussion of body systems..which one is true?
F. Bone in the skeletal system contain bone marrow that mkaes white blood cells as part of the integumentary system.
G. Bones in the skeletal system work with muscles in the lympathic system to help you run.
H. Bones in the skeletal system help protect the lung organs in the respiratory system to exchange carbon dioxide for oxygen.
J. bones in the skeletal system store calcium that is used by reproductive system for communication.
Answer:
F should be the correct answer because that one say bones have bone marrow which is true and they make white blood cells
how animals in the taiga have adapted to survive the extreme cold of winter.
I
Answer:
Some animals have adapted to life in the taiga by hibernating when temperatures drop. Other animals have adapted to the extreme cold temperatures by producing a layer of insulating feathers or fur to protect them from the cold. In some instances, the adaptation of a seasonal change in color of feathers or fur protects the animal from its predators.
Answer:
Some animals have adapted to life in the taiga by hibernating when temperatures drop. Other animals have adapted to the extreme cold temperatures by producing a layer of insulating feathers or fur to protect them from the cold. In some instances, the adaptation of a seasonal change in color of feathers or fur protects the animal from its predators.
Explanation:
Suggest why it is still useful to keep Linnaeus' specimens.
Answer:
As well as changing the way living things were classified, Linnaeus also changed the way they were named. He introduced a simpler method. ... This is rather like our system of giving people a first name and a surname. Each species has its own unique binomial which is the same throughout the world, thus avoiding confusion.
Explanation:
The sequential series of nucleotide triplets that are positioned in the A site of the ribosome during translation. A. Primary structure B. Exons C. Promoter D. Reading frame
Answer:
The correct answer is D.
Explanation:
Reading frame is a sequence of codons determined by nucleotides that are read in groups of three from a specific translation start codon, that is, it is a linear sequence of codons or triplets in a nucleic acid. It is one of three possible reading alternatives of a nucleotide sequence of a series of triplets, this means that, in a double-stranded DNA molecule, there are 6 possible directions in which reading frames can be opened; three in the forward direction and three in reverse.
PLEASE HELP ME WITH THIS QUESTION
Which statements best describe shared characteristics? Select two options.
A. Shared characteristics always exist in the common ancestor and in the modern organism.
B. Shared characteristics never exist in the common ancestor or in the modern organism.
C. The more characteristics organisms share, the more closely related they are.
D. The fewer characteristics organisms share, the more closely related they are.
E. Shared characteristics can exist among organisms that belong to different species. F. Shared characteristics only exist among organisms that belong to the same species.
Answer:
The more characteristics organisms share, the more closely related they are.
Shared characteristics can exist among organisms that belong to different species
Explanation:
A shared character can be regarded as a character that is shared by two lineages.
The statements that best describe shared characteristics
The more characteristics organisms share, the more closely related they are.Shared characteristics can exist among organisms that belong to different species.The classification of all living entities is based on extremely basic, universal traits.
Each group's organisms are subsequently subdivided into smaller groupings.
Each bigger group is divided into smaller groups based on more detailed similar shared characteristics.
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define asexual reproduction help plz
4. Which part of the plant do we eat:
a. Cucumber:
b. Olive:
C. Broccoli:
d. Lettuce:
please help me with this question:)
Answer:
all cells so the last one
What is exocytosis?
The process by which a cell engulfs a large particle or another cell, eating it
Pressure that a fluid exerts against a structure that contains it
The process by which a cell takes in a small amount of extracellular fluid and its contents by the ballooning inward of the plasma membrane
The process by which a cell expels the contents of an internal vesicle to the extracellular fluid
if a nutrient were in short supply in an ecosystem, how might it effect an organism
Answer:
Its leads to a deficiency
Explanation:
If a nutrient is in short supply in an ecosystem, it will lead to a deficiency of such nutrient in organisms that are in need of the nutrient.
Such a deficiency can lead to diseases in the ecosystem. If organisms that requires the nutrient cannot find an alternative, it will seriously affect their well being. Such deficiency often lead to very dire consequences for the balance of the ecosystem at large.In facilitated diffusion, do molecules move down their concentration gradient? Explain.
Answer:
Molecules move up the concentration gradient in facilitated diffusion, which requires ATP to be used as molecules naturally move from high to low concentration
Explanation:
: )
Molecules move down their concentration gradient in facilitated diffusion through channels of proteins.
For most molecules, movement through the membrane, with a significant rate, is only possible by the presence of transporter proteins (integral membrane proteins, which recognize substances with a high specificity, accelerating their translocation) or channels of proteins.
Transport proteins allow the facilitated diffusion of molecules, moving them along the free energy gradient (concentration gradient, charge gradient, or both), in the direction of thermodynamic equilibrium.
When a carrier protein binds to a solute, the protein changes shape in such a way that it carries the solute to the other side of the membrane.
Facilitated diffusion is similar to simple diffusion, since the molecules move from a region of higher to a lower concentration of solutes.
For example, by facilitated diffusion, chlorine ions move down their concentration gradient into the cell through chlorine channels.
Therefore, we can conclude that many molecules are assisted by transporter proteins for their diffusion through the plasma membrane, a process known as facilitated diffusion, where the molecules descend through their concentration gradient.
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Which fossils provide information as to the mode of formation of an oxygen-rich atmosphere by about 2 billion years ago?
Answer:
The fossils that provide information on the formation of an oxygen-rich atmosphere are the stromatilites from the Precambrian era. These are layered and columnar fossils consisting mainly of cyanobacteria which were the original life form back then. These bacteria took in carbon dioxide and produced oxygen by photosynthesis as early as 2.5 billion years ago (the earth is about 4.5 billion yrs old).
Explanation: