Which of the following is a disadvantage of hydrogen fuel?
Answer:
The answer is A. It is expensive to produce and transport
Explanation:
AG CLASS
Which of the following distinguishes the institution most likely to provide the level of education needed to become a research plant geneticist?
Iowa Central Community College
Iowa State University
American Society of Agricultural and Biological Engineers
Organic Farming Research Organization
Answer:
No is wrong
Explanation:
Answer:
Iowa State University
Explanation:
Edge 2022, it's not Organic Farming Research Organization, I picked that one and got it wrong.
Human activities have resulted in changes to the atmosphere. true or false
PLEASE HELP I HAVE AN EXAM !!!
What are the three things that trigger production and secretion of a hormone from an endocrine gland?
Answer:
There are three mechanisms by which endocrine glands are stimulated to synthesize and release hormones: humoral stimuli, hormonal stimuli, and neural stimuli.
the transfer of energy by the movement of fluids or gases with different tempratures is called
Answer: Thermal energy can also be transferred by a method called convection.
Explanation:Convection is the transfer of thermal energy in a fluid by the movement of warmer and cooler fluids from one place to another. A fluid is a substance that can flow. It can be a liquid or a gas
Question 18 (5 points)
During which stage of the cell cycle does the cytoplasm of a cell divide?
interphase
1)
cytokinesis
synthesis
prophase
B
ОООО
0
Answer:
I think brown going in a little while I’m on my way to work now I’m going in a little bit I’m late I can get my car done with you I don’t need you I can do you see you I don’t have any time I will miss it bye thanks bye bye coke bye bye hi bye bye coke bye bye hi hi Johnny for you
Explanation:
Which of the following would make the best index fossil?
a. An insect that only existed in one small forest for abolit 100 million years
b. An aquatic animal that existed all over the world for about 15 million years
C. A single-celled organism that lived in a widespread region for about 25 million years
d. A plant species that lived in a specific geographic region for about 5 million years
Answer: I would go with B. Here’s why: An index fossil is usually easily recognizable, and underwent a wide geographic distribution. What leads me to believe B is the correct answer, is because it’s something that existed “ all over the world”.
Which of the following are mechanical waves?
A sound wave
B earthquake wave
C surface wave
D electromagnetic wave
Answer:
A) sound wave.
Explanation:
A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum
What hypothesis did Miller-Urey test in their experiment?
Answer: The Miller - Urey experiment is an experiment that was conducted by Stanley Miller and Harold Urey last 1950's. The hypothesis that they had tested and demonstrated was that several organic compounds could be formed by simulating the conditions of Earth's atmosphere.The Miller-Urey experiment provided the first evidence that organic molecules needed for life could be formed from inorganic components. Some scientists support the RNA world hypothesis, which suggests that the first life was self-replicating RNA.
Explanation:
How many chromosomes are in each of Chester's body or somatic cells?
Answer mHuman body cells have 46 chromosomes, while human gametes (sperm or eggs) have 23 chromosomes each. A typical body cell, or somatic cell, contains two matched sets of chromosomes, a configuration known as diploid wer:
Explanation:
AG CLASS
Which of the following regions was the focus of the second Morrill Act?
Southwest
Southeast
Pacific Northwest
New England
Answer:
Pacific Northwest
Explanation:
Because u can look it up on the map to see if u are right or wrong
Answer:
Southeast
Explanation:
I picked Pacific Northwest and got it wrong.
dhdjkfjchdhdjfkuc help♀️
Answer:
D
Explanation:
pretty sure!
Cells that line the intestines break down food and absorb nutrients. Which cellular organelle performs a similar function for cells?
Answer: lysosome.
Explanation:
A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes.
What are three functions of lysosomes?A lysosome has three main functions:
The breakdown of macromolecules , Cell membrane restoration, and Responses against ailen substances.Thus, lysomome cellular organelle performs a similar function for cells.
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can you please help me
Answer: 41. primary. 42. temporary storage. 43. secondary. brainliest?
Explanation:
B. Proteins complexed with DNA to form nucleosomes I. Used in chain terminator procedure to stop chain elongation H. Separation of DNA fragments based on polyanionic nature F. Substrates for translation J. A DNA gel for sequencing shows the base sequence of GATCGGA reading from bottom to top. The template sequence can be determined using this information. A. 5' - CTAGCCT B. Histones C. dNTPs D. DNA polymerase E. Restriction Mapping F. aminoacylated tRNAs G. mRNA H. Gel electrophoresis I. ddNTPs J. 5' - TCCGATC
Answer:
B. Proteins complexed with DNA to form nucleosomes- Histones
I. Used in chain terminator procedure to stop chain elongation- ddNTPs
H. Separation of DNA fragments based on polyanionic nature- Gel electrophoresis
F. Substrates for translation- mRNA
J. A DNA gel for sequencing shows the base sequence of GATCGGA reading from bottom to top. The template sequence can be determined using this information 5' - TCCGATC
Explanation:
1. The DNA in the chromatin is packaged and ordered into structural units known as nucleosomes by theirformation of complexes with proteins called Histones. Histones are small basic proteins rich in the amino acids arginine and lysine.
2. In the chain termination procedure of DNA sequencing, chain elongation is terminated at several points whenever the dideoxynucleotides, ddNTPs are added to the growing sequence of the newly synthesized DNA strand. Because the ddNTPs lack an OH group and 3' position, new nucleotides cannot be added.
3. Gel electrophoresis is a separation technique used to separate DNA fragments based on ability to migrate an electric field. The DNA molecules are negatively-charged (polyanionic) and are separated based on their size with smaller molecules migrating fastest than bigger ones.
4. The messenger RNA, is synthesized from the part of the DNA coding for a functional protein. They serve as the template from which the ribosomes read to make proteins. Thus, they serve as the substrates for translation.
5. The reading of the base sequence from an autoradiogram (DNA gel for sequencing) is from top to bottom in the 5' to 3' direction. Since the template is complementary to it, it will read in the 3' to 5' direction CTAGCCT or TCCGATC in the 5' to 3' direction.
Which of the following particles has no charge?
A. Ion
B. Proton
C. Neutron
D. Electron
A fiber reinforced composite contains e-glass fibers in an epoxy matrix. E for the glass is 72 GPa, E for the epoxy is 2.4 GPa. Find the elastic modulus of a composite that contains 5% fibers in the longitudinal direction, Ecl
Answer: hello your question is in complete below is the complete question
A fiber reinforced composite contains e-glass fibers in an epoxy matrix. E for the glass is 72 GPA, E for the epoxy is 2.4 GPa. Find the elastic modulus of a composite that contains 5% fibers in the longitudinal direction, Ecl = ViEi + EmVm? (note Vi + Vm= 1.) O 5.88 GPa O 5.66 GPa O 2.52 GPa O 6.74 GPa
answer : 5.88 GPa
Explanation:
Fiber reinforced composite containing e-glass fibers
E for the glass ( Ei ) = 72 GPa
E for the epoxy ( Em ) = 2.4 GPa
Determine the Elastic modulus of a composite containing 5% fibers
percentage of glass = 5% = Vi = 0.05
∴ percentage of epoxy = 95% ; Vm = 0.95
using the relation included in the question
Ecl = Ei Vi + Em Vm
= ( 72 * 0.05 ) + ( 2.4 * 0.95 )
= 3.6 + 2.28 = 5.88 GPa
what level of classification contains organisms that can mate and make more of the same kind of organism
Answer:
Classification of Living Things. All living organisms are classified into groups based on very basic, shared characteristics. Organisms within each group are then further divided into smaller groups. These smaller groups are based on more detailed similarities within each larger group.
Kingdoms
The much more basic classification of living things is kingdoms. Currently there are five kingdoms. Living things are placed into certain kingdoms based on how they are obtain their food, the types of cells that make up their body, and the number of cells they contain.
Phylum
The phylum is the second level following kingdom in the classification of living things. It is an attempt to find some kind of physical similarities among organisms within a kingdom. These physical similarities suggest that there is a common ancestry among those organisms in a particular phylum.Classes
Classes are way to further divide organisms of a phylum. As you could probably guess, organisms of a class have even more in common than those in an entire phylum. Humans belong to the Mammal Class because we drink milk as a baby.
Explanation:
Which process illustrates a feedback mechanism in plants?*
(1) Chloroplasts take in more nitrogen, which increases the rate of photosynthesis.
O
(2) Chloroplasts release more oxygen in response to a decreased rate of
photosynthesis
(3) Guard cells change the size of leaf openings, regulating the exchange of gases.
(4) Guard cells release oxygen from the leaf at night.
Antibody molecules and receptor molecules
Answer:
The first one is your answer
Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants.
feedback mechanism is a form of system regulation that occur in living organs which help to return or restore the body to it's original normal internal condition for sustainability of living. It is also called homeostasis.
Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants because nitrogen helps to increase the concentration of chlorophyll which is the green pigment house in chloroplast that aid the increase of photosynthesis rate in plants.
Therefore,Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants.
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The thyroid gland produces a substance
containing iodine that helps regulate growth.
Goiter is an enlargement of the thyroid gland
caused by a lack of iodine in the diet. Goiter
is uncommon in coastal areas where people
eat seafood that contains a form of iodine.
It is more common inland, where people
eat food that has been grown in soil
lacking iodine.
Which phrase restates the cause of the
disease goiter, as given in the passage?
(1) eating too much fish
(2) eating too little of foods high in iodine
(3) exposure to a bacterium found in iodine
(4) fertilizing the soil with iodine
(5) inheriting a defective thyroid gene
Answer:
eating too little of foods high in iodine
Explanation:
Iodine deficiency lead to goiter that is why it is necessary to consume food rich in iodine like taking iodized salt or sea foods which prevent this. This lead to goiter because, your thyroid gland need iodine to repair tissues, produce thyroid hormones, aid metabolism and for proper growth,therefore deficiency of it will result in non of the following functions.
PLEASE HELP TO SOLVE IT I HAVE AN EXAM !!!
An organism has 2 chromosomes in its cells (the diploid number is 2). Calculate the number of chromosomes in a cell in the 5th generation if egg and sperm cells were diploid
Answer:
64
Explanation:
Since the cell has two chromosomes and a diploid number of 2, in each generation, the cell doubles. In the first generation, we have two cells, in the second generation, we have 2 × 2 cells ,in the third generation, we have 2 × 2 × 2 cells. It follows that we have 2ⁿ cells in each generation where n represents the generation.
So, in the fifth generation, n = 5, so the number of cells is 2⁵ = 32.
Since we have 2 chromosomes in each cell, the number of chromosomes in the 32 cells in the 5th generation is 2 × 32 = 64 chromosomes.
Which of the following characteristics would you expect to find in a population of birds in which females choose their mates?
Answer:
The males are much larger than the females
In cats, coat color is an X-linked trait with incomplete dominance. Yellow coat is caused by the allele XT and black coat by the allele Xt. A tortoise cost is caused by the heterozygous condition. What is the correct way to represent the genotype of a male cat with a black coat
Answer:
The genotype of a black male is XtY
Explanation:
Available data:
coat color is an X-linked trait with incomplete dominance.Yellow coat is caused by the allele XTBlack coat by the allele Xt.Tortoise coat is caused by the heterozygous conditionSo,
females genotypes females phenotype
XTXT → Yellow coat XtXt → Black coat XTXt → Tortoise coatmales genotype males phenotype
XTY → Yellow coat XtY → Black coatMales only carry one X chromosome, so they can only be either black - XtY- or yellow -XTY-.
Females are the only ones that can express the tortoise coat.
The correct way to represent the genotype of a male cat with a black coat - XtY
We know that,
In cats, coat color is an X-linked trait - it means it is influenced by the X allele onlyIn cats, coat color is shows incomplete dominance - it means if corresponding alleles present together they will show an intermediate coat color.the allele XT - Yellow coatthe allele Xt - black coatXTXt (heterozygous) - tortoise coat (incomplete dominance)In X linked traits heterozygous conditions are not possible in males as they have only one X allele and the other is Y allele.So,
Female cats genotype would be:
XTXT - female cat with yellow coatXTXt - female cat with a black coatXtXt - female cat with tortoise coatMale cats genotype:
1. XtY - black coat male cat
2. XTY - yellow coat male cat.
Thus, The correct way to represent the genotype of a male cat with a black coat - XtY
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How is an agrarian society likely to address the problem of crops spoiling
before they can be brought to market?
A. By cutting down forests to produce more cropland
O B. By switching from coal-burning power plants to solar energy
production
O C. By developing irrigation techniques that conserve water
O D. By creating more efficient methods of food preservation
Answer:
The correct answer is D) By creating more efficient methods of food preservation
Explanation:
By creating more efficient methods of food preservation. Therefore, option (D) is correct.
In an agrarian society, where agriculture is the primary means of livelihood, the problem of crops spoiling before they can be brought to market can have significant economic and social implications. Cutting down forests to produce more cropland or switching from coal-burning power plants to solar energy production would not directly address the problem of crop spoilage.
Developing irrigation techniques that conserve water could help improve crop yields and reduce water wastage, but it would not necessarily address the problem of crop spoilage. On the other hand, creating more efficient methods of food preservation would help prevent crops from spoiling before they can be brought to market, thus reducing food waste and increasing food security. Some examples of food preservation methods that can be used in an agrarian society include canning, drying, and pickling.
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Please select the word from the list that best fits the definition
Grouping items together to keep observations organized
inferring
predicting
classifying
observing
The answer is classifying.
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Definition: Arranging (a group of people or things) in classes or categories according to shared qualities or characteristics.
PLZ HELP ASAP (BRAINLIEST INCLUDED)
Which of the following are seen when the solar winds collide with Earth's atmosphere?
Auroras
Lunar eclipses
Solar eclipses
Tides
Answer:
Auroras
Explanation:
Hope this helped :)
Answer:
Auroras
Explanation:
Auroras often form near Earth's north and south magnetic poles, but sometimes they can also occur near the equator. Their position all depends on solar winds. The stronger the solar wind is, the bigger and brighter the aurora is.
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Which role do ultrafine particles play in dirty air?
They contribute to less than 13,000 premature deaths a year.
They can worsen symptoms for people with breathing difficulties.
They are easily removed from the air when people see them floating.
They are constantly filtered by the nose, which prevents lung absorption
Answer:
B
Explanation:
The role the ultrafine particles play in dirty air is that they can worsen symptoms for people with breathing difficulties. The correct answer is b).
What are ultrafine particles?The term "ultrafine particles" (UFPs) refers to particles with a dimension of less than micrometers and more than 0.1 micrometres (100 nanometers), also known as nanoscale particles. The majority of the ultrafine particles are found on motorways and are mostly produced by vehicle emissions.
It has been demonstrated that ultrafine pollution particles may play a crucial role in igniting extra pathways or inflammation, which worsens asthma disease. The ultrafine particles released by motor vehicles and other sources of combustion are covered with an organic chemical coating that can be inhaled.
By oxidizing cells and tissues, these substances create free oxygen radicals that activate the immune system in the lung. For those who have asthma, oxidation exacerbates the allergic inflammation in their lungs.
Therefore the correct option is b).
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How does the cloning animals affect the environment (3-5 sentences)
Describe at least three large - scale detrimental consequences of rising temperatures
Answer:
En primer lugar hay que decir que en contra de lo que puedan pensar muchas personas, el aumento de las temperaturas es una realidad. De hecho, no hay más que ver algunos datos comparativos para darse cuenta, por ejemplo, de que la temperatura de los polos ha aumentado considerablemente en el último siglo.
En primer lugar y por encima de todo tenemos que tener muy claro que el hábitat está cambiando de una manera abismal por lo que la vida del ser humano en La Tierra cada vez es más complicada. Si a esto le unimos el hecho de que nosotros no somos el único ser vivo cuya vida se complica, podemos concluir que muchas especies no serán capaces de adaptarse a estos cambios por lo que morirán. Un cambio que se puede llevar consigo gran parte de las cosechas que existen a día de hoy.
Una serie de consecuencias que lejos de ser catastróficas son más que plausibles. Es cierto que del mismo modo que esta situación se puede dar, no es menos cierto que todavía hay opciones de revertir la situación. La pregunta, sin embargo, es saber si el ser humano está dispuesto a ello.
Explanation:
Complete the passage to differentiate between longitudinal and transverse waves.
A longitudinal wave is a type of wave that transfers energy
to the direction of wave motion. A transverse wave, on the other hand, is a type of wave that transfers energy
to the direction of wave motion.
Answer:
transverse Waves transfer energy at right angle while longitudinal waves transfers energy parallel