Scanning electron microscope is better than light microscope to study photosynthesis in algae.
The light microscope is an instrument for visualizing great detail of an object. It does this by way of developing a magnified image via the use of a sequence of glass lenses, which first attention a beam of light onto or via an object, and convex lenses to increase the picture fashioned.
Light microscopy is used to make small structures and samples seen by way of supplying a magnified photo of the way they interact with visible light, e.g., their absorption, reflection and scattering.
Lenses form the picture goal lens gathers light from the specimen eyepiece transmits and magnifies the photo from the goal lens for your eye nosepiece rotating mount that holds many objective lenses tube holds the eyepiece on the proper distance from the goal lens and blocks out stray light.
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What does each part of a bomb calorimeter do?
Answer:
The bomb calorimeter is used to determine the calorific values of solid and liquid fuels. It consists of a strong steel shell known as a bomb. It consists of a base which supports the platinum crucible and is screwed to the body of the bomb. The top of the bomb carries an oxygen supply connection and a valve to release the product.
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Thermal Energy, Heat, Temperature Summary
Bro easy points just need a 7th grade version of thermal energy, heat, and temperature just a summary.
Give you 15 points
Answer: 7th graders man I'm in 10th grade, Heat, is thermal energy transferred from a hotter system to a cooling system that is in contact.
Explanation: Temperature is a measure of the average kinetic energy of the atoms or molecules in the system. would this help :P
I need help with this ASAP.
periodic table
Explanation:
No discussion too easy
Pick an environmental factors that impacts enzyme activity (Temperature , pH, or substrate concentration ) and explain how it affects the rate of the enzyme. *
Enzyme- a substance, usually produced by plants and animals, which helps a chemical change to happen more quickly, without being changed itself. All living things have enzymes. Our bodies naturally produce enzymes.
The factors that impacts enzyme activity are:-
Temerature: Raising temperature speeds up a reaction, and lowering temperature slows down a reaction. However, very high temperatures can cause an enzyme to denature(lose its shape).
pH: When the pH value of the reaction medium changes, the shape and structure of the enzyme will change. Enzyme activity is at its maximum value at the optimum pH.
Substrate Concentration: As the substrate concentration increases so does the rate of enzyme activity. An optimum rate is reached at the enzyme's optimum substrate concentration.
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Terms that mean many species die out at the same time
Mass extinctions is the terms that mean many species die out at the same time.
Extinction :A species dying out or disappearing is referred to as extinction. Extinction occurs when a species becomes less numerous due to environmental factors (habitat fragmentation, climate change, natural disasters, overexploitation of species for human use).
Mass extinction :The majority of species that have ever lived on Earth have gone extinct, but the fossil record reveals five particularly large extinctions, known as mass extinction events, that each resulted in the extinction of enormous numbers of species. The majority of extinctions, which happen continuously and are referred to as background extinctions, are distinguished from these glaring declines in diversity by the term "mass extinction."
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Seed blank is when enzymes and other chemicals are activated and energy is produced to start cell division.
photosynthesis
germination
respiration
growth
Seed germination is when enzymes and other chemicals are activated and energy is produced to start cell division.
The correct option is B.
What is the germination explain?A seed, spore, or even other reproductive body sprouts after germination, usually following a period of dormancy. The procedure may be started by the following factors: moisture damage, elapse of period, cooling, warming, availability of oxygen, and light exposure.
What causes germination?When soil temperature and moisture conditions are ideal for their growth, seeds typically "wake up" and germinate. However, not all seeds have the same germination needs, therefore it's essential to know what each variety of seed needs. To germinate, seed require the right combination of temperature, water, air, and light.
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The complete question is-
Seed _____ is when enzymes and other chemicals are activated and energy is produced to start cell division.
A)Photosynthesis
B)Germination
C)Respiration
D)Growth
list three of the types of noncovalent interactions that are important in providing stability to the three-dimensional structures of macromolecules. (b) why is it important that these interactions be noncovalent, rather than covalent, bonds?
a) Noncovalent interactions include
hydrogen bonds van der Waals interactions hydrophobic interactions.(b) Noncovalent interactions can develop, break, and re-form more quickly and with less energy input than covalent bonds because they are weaker. In order to keep macromolecules flexible, this is crucial.
In contrast to a covalent bond, a non-covalent contact involves more scattered types of electromagnetic interactions between molecules or inside a molecule and does not share electrons. Large molecules like proteins and nucleic acids have a three-dimensional structure that must be maintained by non-covalent interactions.
Additionally, they participate in a variety of biological processes in which big molecules briefly yet specifically bond to one another. The design of drugs, crystallinity, materials, notably those for self-assembly, and generally the synthesis of numerous organic molecules are all significantly influenced by these interactions. Large molecules like proteins and nucleic acids are joined by noncovalent bonds. Though weaker than covalent connections, noncovalent bonds are essential for biological processes including the creation of double helices.
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Site staff should report an unexpected serious adverse event (sae) to the sponsor within _______ after becoming aware of the event. a. 5 day b. 2 weeks c. 24 hours d. 30 days e. 72 hours
Answer:
C
Explanation:
they should report it between 24-48 hours
Staff should be aware of whom to contact and how to do so when unfavorable circumstances happen, as well as the timeliness requirements. Thus, option C is correct.
What staff should report an unexpected adverse event?
Any serious adverse event, including those listed in the protocol or investigator brochure, must be reported to the sponsor by an investigator .
(if they are not sponsor-investigators) within 24 hours of learning about them, whether they are thought to be drug-related. The report must also include an evaluation of whether the event was drug-related.
The independent safety monitoring body (i.e., DSMB or Safety Officer) and the NIA must receive an accelerated report of an SAE within 24 hours.
The occurrence being reported to the Investigator or as defined in the DSMP. This report can be sent through phone, fax, or email.
Therefore, they should report it between 24-48 hours.
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Question 2 of 10
Which statement best describes the movement of materials across a cell
membrane using active transport?
OA. They move back and forth to keep both concentrations at zero.
OB. They move from an area of higher concentration to an area of
lower concentration.
OC. They move back and forth randomly between areas of different
concentrations.
OD. They move from an area of lower concentration to an area of
higher concentration.
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7. Why is it impossible for a paper clip to contain the enzyme catalase?
Answer:
Because they have to use for the rate of the reaction rate of the chemical reaction like other temperature affect the reaction of the engine catalysis.
Answer:
Hydrogen peroxide separate to catalase to prevent reaction from starting before the desired temperature
Explanation:
how are polymers broken down?
what is the difference between RNA and DNA?
DNA and RNA counter in two ways (a) RNA incorporates the sugar ribose, whereas DNA includes the slightly additional sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA possesses the nucleobase uracil, whereas DNA controls thymine.
What exactly is in human DNA?Deoxyribonucleic acid is a polymer made up of two polynucleotide chains that coil around each other to form a double helix that contains genetic instructions for the development, functioning, growth, and reproduction of all known organisms and viruses. Nucleic acids have DNA and ribonucleic acid.DNA is made up of nucleotide molecules. Each nucleotide is made up of three parts: a phosphate group (one phosphorus atom bonded to four oxygen atoms), a sugar molecule, and a nitrogen base. DNA is composed of chemical building blocks known as nucleotides. These building blocks are composed of three components: a phosphate group, a sugar group, and one of four different types of nitrogen bases.To learn more about DNA, refer to:
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All living things reproduce. What is the benefit of reproducing sexually?
A. Less energy spent
B. Takes less time
C. Genetic variation
Answer:
Genetic Variation
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where are the instructions that tell the cell everything it needs to survive?
Answer:
In the DNA.
Explanation:
choose the mutation that you think has caused cali a calico fit coloring. form a hypothesis to explain your reasoning
The mutation that I think has caused Calix’s calico fur coloring is Nondisjunction mutation.
Why does Nondisjunction mutation cause the coloring above?"Chromosome segregation fails as a result of the mutation known as nondisjunction during cell division. One daughter cell will consequently contain an extra chromosome, whereas the other will be missing one."
This would make sense for Calix because Nondisjunction would account for the difference in mass and Calix's DNA per cell mass is larger than typical. Due to the fact that "point mutations do not modify the mass of DNA," we also know that it cannot be a point mutation.
However, chromosomal rearrangement is not the explanation since the amount of DNA in each cell of Calix does not match what it would be if Calix had a chromosomal rearrangement.
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the probability of a person having one copy of the allele that causes this phenotype is 1%, or one in one hundred (1/100). is it more likely that this is a dominant pattern or a recessive pattern?
The probability of a person having one copy of the allele that causes this phenotype is 1%, or one in one hundred (1/100). is it more likely that this is a recessive pattern.
According to the most respected textbooks on genetics and evolution, an allele is a different arrangement of the same sequence of nucleotides at the same location on a lengthy DNA molecule A locus is the chromosomal or genomic location of a gene or any other genetic element, and alleles are different DNA sequences at a locus.
The collection of qualities or visible characteristics that may be observed in an organism is known as its phenotype. The phrase refers to an organism's morphology, physical shape and structure, developmental processes, biochemical and physiological characteristics, behavior, and the outcomes of behavior. Because it allows for distinct behavior toward previously unknown creatures, phenotype matching is crucial.
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how do you use the microscope differently when looking at objects under low power versus high power?????
The microscope is used differently when looking at objects under low power versus high power as you boost the magnification and the field of view narrows. On low power, you can make out more of an object.
The depth of focus diminishes each time you choose a greater power. As a result, at higher magnification, less of the material is in focus. The amount of light that penetrates your eye is greatest when the power is low. Resolving power, or the capability to discern two neighboring objects as distinct is diminished as you increase the power. Adjust the light to make up for the loss (sometimes called the iris diaphragm).
The deepest attention is achieved on targets with the lowest power. The depth of focus diminishes each time you choose a greater power. As a result, at higher magnification, less of the material is in focus. Once more, this makes it simpler to focus on an object when using low power before moving to a higher power.
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what is the number one factor when descending to the bottom of the ocean floor ?
What polysaccharides can be found in the cell wall of a plant cell?
Answer:
Cell walls are composed primarily of multiple polysaccharides that can be grouped into three major classes: cellulose, pectins, and hemicelluloses
what is the answer for this question?
Answer:
The answer is B
Explanation:
Hope it helps
multiple alleles explain
Answer:
Multiple alleles of a gene occupy the same locus on the chromosome. Multiple alleles are the alternative forms of the same gene so they influence the same trait. The wild-type allele is mostly dominant over the mutant alleles. The wild type is considered the standard and all other alleles are considered variants.
In horses, black color (B) dominates chestnut color (b). The trotting gait (T) dominates the pacing gait (t). A cross is made between a horse homozygous for black color and the pacing gait, and a horse homozygous for chestnut color and the trotting gait. What is the probability that an offspring will be a black trotter? SHOW WORK FOR CREDIT!
First Horse’s Phenotype: ___________. Second Horse’s Phenotype: ___________
First Horse’s Genotype: ___________. Second Horse’s Genotype: ___________
Gamete: gamete:
Black B is dominant over chestnut color b and trotting gait T is dominant over pacing gait t. The answer is 100%. Since all offspring have at least one dominant black hair allele that overwhelms the brown hair allele, all offspring are expected to have black hair.
Phenotype refers to the physical color of a horse's coat or the way genes are expressed. Phenotype II FMF in Familial Mediterranean Fever is the onset of amyloidosis prior to the onset of his FMF with typical attacks or is an isolated finding in members of the FMF family.
White horses have pink skin. White fur mane tail, and hooves. and dark brown eyes. White is the dominant trait W at the white locus. White horse genotype must be heterozygous dominant We. Homozygous dominant because WW is more likely to cause early embryonic loss. Scientists conclude that horses were first domesticated 6,000 years ago in the western part of the Eurasian steppe, in what is now western Ukraine and Kazakhstan.
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A person with AIDS may take longer than a healthy person to recover from a
Salmonella infection.
Explain why.
PLEASE I NEED IMMIDIATE HELP WITH IT!!
Answer:
a person with AIDS has a weakened immune system
You are asked to perform a fermentation test with your unknown bacteria, using a technique known as stab culturing. What can you conclude if the test came back purple?.
You are asked to perform a fermentation test with your unknown bacteria, using a technique known as stab culturing. If the test came back purple the conclusion will be the culture is basic and your unknown bacteria cannot metabolize arabinose.
Fermentation is specifically described in biochemistry as the process of obtaining energy from carbohydrates without the presence of oxygen. There are a lot of different kinds of fermentation, but the three most common ones used in food preparation are lactic acid, ethanol, and acetic acid.
Stab cultures are made of solid agar in a test tube and are comparable to agar plates. By inserting a pipette tip or an inoculation needle into the center of the agar, bacteria are introduced. The pierced area is where bacteria flourish. The most typical method for shipping or short-term storing cultures is stab culturing.
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The acid hydrogen fluoride can be dissolved in water. Will the pH of the solution change? Explain.
Answer: water has a pH of 6.5-8.5. If an acid is dissolved in the water, the pH will become more acidic, therefore dropping in number.
When the equation for photosynthesis is reversed, it represents a chemical reaction that produces ATP in organisms. This is called what?
When the equation for photosynthesis is reversed, it represents a chemical reaction that produces ATP in organisms. This is called what?
Dentrification
Metabolizing
Photosynthesis
Respiration
The chemical reaction represented by the reversion of equation of photosynthesis is: Respiration.
Photosynthesis is the process of synthesizing one's own food using the inorganic raw material. This process is observed in plants and some algae. The main organelle involved in photosynthesis is chloroplast. Photosynthesis utilizes carbon dioxide. The end product of photosynthesis is glucose.
Respiration is the reverse of photosynthesis. It is the breakdown of glucose to release energy. This energy is utilized by the body to perform several processes. Besides energy, respiration also maintains the carbon balance of the plant cells. Respiration releases carbon dioxide during the process.
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Explain how mutations in DNA change the sequence of amino acids in a polypeptide chain
Answer: Since each codon is translated into a single amino acid in the final polypeptide chain, changing one codon changed the type of amino acid that is placed in the polypeptide at this position. The new polypeptide is different (has a different sequence of amino acids) than the original polypeptide.
Explanation:
what is the difference between mitochondria and chloroplast
Write a paragraph or two below to explain why there is little change in the pH of battery acid when it is diluted with water.
Also include in your answer...
• The water equilibrium expression.
• What could you add to the battery acid to significantly change the pH of the solution?
There is little change in the pH of battery acid when it is diluted with water because adding more water increases the pH of the solution towards 7 thereby making it less acidic.
What is pH?This is referred to as the power of hydrogen and it is the measure of the acidity or alkalinity of a substance. pH of 7 is referred to as being neutral, pH of 1-6.9 is referred to as being acidic while the pH of 7.1 - 14 is referred to as being basic or alkaline.
The water equilibrium expression is Kw = [H₃O⁺][OH⁻].
Water can be added to the battery acid which results in its dilution thereby increasing the pH of the solution towards 7. The acid in most instances become more corrosive when observed. This means that it becomes less acidic and is therefore the correct choice.
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what is the terrain, altitude, and humidity of the great barrier reef in austrailia?
Answer: The terrain of the great barrier reef =
The reef actually consists of some 2,100 individual reefs and some 800 fringing reefs (formed around islands or bordering coastlines). Many are dry at low tide; some have islands of coral sand, or cays; and others fringe high islands or the mainland coast of the reef.
The altitude =
The average sea bed level is approximately 40m. The highest point is 1,121m on Hinchinbrook Island. The Great Barrier Reef Marine Park Act 1975 applies to areas between 1,000m below the sea bed to 915m above sea level.
The humidity =
The temperatures are recorded as average maximums of (Celsius) 30 degrees and average minimums of (Celsius) 21 degrees. The Tropical North has an average rainfall of 2010mm (an average of 168mm per month).
Explanation:
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What do the sand crabs prefer?