Answers
Answer:
1. Newton's second law states that the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.
2. Answer: why in a single fixed pulley the velocity ratio is always more than the mechanical advantage. ... Thus effort is able to lift less load than actual effort applied and hence mechanical advantage is less than
3. Total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle.
7. Mercury which is a metal but a liquid at room temperature. So it cannot be drawn into wires.
8. Hermaphroditic animals—mostly invertebrates such as worms, bryozoans (moss animals), trematodes (flukes), snails, slugs, and barnacles—are usually parasitic, slow-moving, or permanently attached to another animal or plant.
9. A bacteriophage is a type of virus that infects bacteria. In fact, the word "bacteriophage" literally means "bacteria eater," because bacteriophages destroy their host cells. All bacteriophages are composed of a nucleic acid molecule that is surrounded by a protein structure. A bacteriophage attaches itself to a susceptible bacterium and infects the host cell. Following infection, the bacteriophage hijacks the bacterium's cellular machinery to prevent it from producing bacterial components and instead forces the cell to produce viral components. Eventually, new bacteriophages assemble and burst out of the bacterium in a process called lysis. Bacteriophages occasionally remove a portion of their host cells' bacterial DNA during the infection process and then transfer this DNA into the genome of new host cells. This process is known as transduction.
Explanation:
Related Questions
All atoms of an element have the same number of electrons. Question 12 options: True False
Answers
Answer:
yes
Explanation:
Answer:
True
Explanation: The only atoms to change in an element are neutrons, which make it an Isotope. Both Protons and electrons stay the same
What factors would you consider when locating your drinking water well?
Answers
Answer: Proximity to where people live. Convenience is a very important factor to consider when locating a well. Studies have shown that when a water point is located less than 200 meters from a home, people tend to use more water than when the source is farther away.
Explanation:
Scientific data
All of the above are true.
are always true.
must be collected in laboratories.
are used to support or refute a hypothesis.
cannot be collected in a completely unbiased way.
Answers
what is carbon dioxide??
Answers
Answer:
Carbon dioxide is a natural greenhouse gas, commonly produced by the air we exhale.
Explanation:
Molar mass: 44.01 g/mol
Formula: CO2
Boiling point: -109.2°F (-78.46°C)
Triple point temperature: -69.88°F (-56.6°C)
Soluble in: Water
Molecular geometry shape: linear
Why sometimes, even when we know the danger, we continue to do this matter, for example, you use a sharp tool, You know that it is possible to cut your hand if you continue to use this tool without changing the way you hold it, but sometimes you persist. In the end, you may hurt yourself, and you may be lucky. What makes you persist sometimes?
Answers
Answer:
The fact that you have a task set in mind is something that can make you persist. The urge to satisfy your need to finish that task with the sharp tool is what drives you to persist with using the sharp tool knowing what could be the possible outcome of using it.
Explanation:
Why does a cell need a LOT of surface area compared to their volume?
Answers
Answer:
The surface area to volume ratio (SA:V) limits cell size because the bigger the cell gets, the less surface area it has for its size.
Explanation:
This is important if you are a cell that depends on diffusion through your cell wall to obtain oxygen, water, and food and get rid of carbon dioxide and waste materials.
What do you compare an object to when determining the object's motion?
Answers
An object is in motion if it changes position relative to a reference point.
You assume that the reference point is stationary, or not moving.
Three organisms have four shared characteristics. They all have a backbone and scales, lay eggs, and walk on land. What can be determined based on this information alone? They are members of different species. They are members of the same species. Their common ancestor has the same four shared characteristics. Their common ancestor has none of the shared characteristics.
Answers
Answer:
It is most likely that they are members of the same species and their ancestor had the same four shared characteristics.
Answer:
For people who didn't understand the other person's answer-explanation above me the answer is C. (:
Explanation:
All of the following are correct about alcoholism except:
a) risks of developing alcoholism may be increased by high levels of stress.
b) it tends to run in families, indicating there is a genetic component to the disease.
c) its development is influenced by environmental factors.
d) the older a person is when alcohol consumption begins, the greater the likelihood that a drinking problem will eventually develop.
Answers
Answer: D. the older a person is when alcohol consumption begins, the greater the likelihood that a drinking problem will eventually develop.
Explanation:
Alcoholism is a chronic disease that simply means the uncontrolled drinking of alcohol. When someone is faced with alcoholism, such person cannot control his or her drinking.
When someone is stressed, this may lead to the risk of developing alcoholism. It can also be genetic and can be influenced by environmental factors. Its availability and its acceptance by the society could lead to alcoholism.
The correct option is D as age doesn't really have anything to do with the person having a drinking problem. A young person may have a drinking problem likewise an old person.
PLEASE HELP ASAP!!!
List two things that can increase genetic variation in meiosis and explain how they can impact the next generation of living things.
Please help :(
Answers
Crossing over and random fertilization can increase genetic variation.
What causes genetic variation?There are several causes of genetic variation, including:
Mutations: Changes in the DNA sequence can occur naturally and lead to the creation of new alleles. These mutations can happen spontaneously, or they can be caused by environmental factors such as radiation or certain chemicals.
Crossing-over: During meiosis, chromosomes can swap genetic material with their homologous pairs, leading to the creation of new combinations of alleles.
Independent assortment: During meiosis, the way the chromosomes line up and exchange genetic material can vary, leading to different combinations of alleles being passed on to the next generation.
Random fertilization: In sexually reproducing organisms, the combination of genetic material from sperm and egg cells is random, leading to new combinations of alleles being passed on to the next generation.
Gene flow: The movement of genes from one population to another can lead to the introduction of new alleles into a population.
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Which of the following outcomes will most likely result from the irreversible binding of GDP to the G protein?
Answers
Answer:
The correct answer is - The intracellular concentration of glycogen will increase.
Explanation:
The intracellular concentration of glycogen will increase as the result of the irreversible binding of GDP to the G protein due to the not respond to the binding of norepinephrine to the beta-adrenergic receptor which prevents the separation of the G protein alpha subunit.
This leads to the activation of adenylyl cyclase. PKA will be lesser and glucose 1 phosphate as the dissociation of G protein will not take place and ultimately to glycogen accumulation.
The most likely result from the irreversible binding of GDP to the G protein results in an increase in intracellular concentration of glycogen.
G proteins are a group of proteins that operate as signaling molecules inside cells, conveying signals from various external stimuli to the cell's core. They govern their signaling cycle with the help of GDP.
In an irreversible binding of GDP to the G protein, the G protein is rendered inactive.The GDP is swapped by GTP to initiate the protein, and the G protein then sends out its signal.This results in an increase in the intracellular concentration of glycogen because of the non-response to norepinephrine binding and to the beta-adrenergic receptor, which inhibits the G protein alpha subunit from being separated.
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plz help i need to write an essy about one of the six major biomes i dont care what u choose.
Answers
Name a structure that is on the ventral side of the heart, located more laterally within the axial region?
Answers
Which factor can increase the chances of a species evolving by natural selection?
A. high reproductive rate
B. no related species
C. stable environmental conditions
D. small gene pool
Answers
Answer:
A.
Explanation:
A high reproductive rate means a larger gene pool, and traits which benefit stand above the rest better, and are kept in the population. No related species would allow for only the small gene pool to continue in a slow evolutionary pace. Stable ecosystem does not generally require an organism to adapt.
The factor that can increase the chances of a species evolving by natural selection is genetic variation. Therefore, option "A" is correct.
What is genetic variation?The difference in the gene sequence can be between interspecies and interindividual. The primary force behind the process of natural selection is genetic variation. Gene variation is the result of different forms of alleles.
The variants which result in genetic alternation are single nucleotide polymorphisms or variation, copy number variation, structural variation, translocation, insertion, deletion, and inversion. These result in the formation of different alleles resulting in genetic variation.
Therefore, genetic variation results in different skin colors, and hair colors.
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Mutated gene
DNA sequence: TAC-ATA-ACG-CCC-AGC-G
mRNA:
Codons:
Amino acid sequence:
Answers
Answer:
mRNA: AUG-UAU-UGC-GGG-UCG-C
Codons: AUG, UAU, UGC, GGG, UCG
Amino acid sequence: Methionine- Tyrosine- Cysteine- Glycine- Tryptophan
Explanation:
This question is trying to illustrate the process of gene expression, which includes transcription (DNA - mRNA) and translation (mRNA - protein). According to this question, a mutated DNA sequence was given as follows: TAC-ATA-ACG-CCC-AGC-G
After transcription, which employs the complementary base pairing rule i.e A-U, G-C, the following mRNA sequence will be produced:
mRNA: AUG-UAU-UGC-GGG-UCG-C
After translation, which uses mRNA codons (a group of three nucleotide bases that encode a specific amino acids), the following amino acid sequence will be produced:
Amino acid sequence: Methionine (Met)- Tyrosine (Tyr)- Cysteine (Cys)- Glycine (Gly)- Tryptophan (Try).
Note that:
AUG encodes methionine
UAU encodes tyrosine
UGC encodes Cysteine
GGG encodes Glycine
UCG encodes tryptophan
if the number of birth in a population is the same number of deaths in a population what will happen to the growth of population?
A. It will increase
B. It will decrease
C. It will stay the same
D. It will fluctuate
Answers
Answer:
C. It will stay the same
Explanation:
Let's say the population is 7
Then let's say 4 more are born, and since the number of births and deaths are the same then the number of deaths must be 4.
Since the number of births is positive and the number of deaths are negative then they cancel out and the population number stays the same.
Therefore C is correct.
If the number of birth in a population is the same number of deaths in a population, the growth of the population will stay the same. Thus, the correct option for this question is C.
What is Population?A Population may be defined as a group of individuals belonging to the same species living in the same area at a particular time.
The characteristics of the population like size, birth rate, death rate, population dispersion, age distribution, etc. cannot be applied on the individual level. But these factors can be significantly represented on the graph and hence, they are known as demographic factors.
The growth rate of the population can be measured by two factors such as birth rate and death rate. When the birth rate is greater than the death rate, the growth of the population will increase. But when the birth rate is lower than the death rate, the growth of the population will decrease.
Therefore, if the number of birth in a population is the same number of deaths in a population, the growth of the population will stay the same. Thus, the correct option for this question is C.
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What are the Monomer and Polymer of the 4 Macromolecules?
Answers
Answer:
Monomers are the building blocks of the four basic macromolecules of life- monosaccharides are the monomers of carbohydrates, amino acids are the monomers of proteins, glycerol/fatty acids are the monomers of lipids, and nucleotides are the monomers of DNA.
Explanation:
i hope it will help you
Please answer the picture
Answers
the tiles go into the sequence in that order.
first one is tile 2, second is tile 4, etc.
Which statement best completes the timeline of French history?
France is ruled
by the Roman
Empire
The Franks
conquer much of
western Europe
France becomes France fights in
a powerful World War I and
empire World War II.
?
A. European powers unite to defeat Napoleon Bonaparte.
Ο Ο
B. The French monarchy is overthrown in the French Revolution.
C. France becomes part of the Ottoman Empire.
D. France is invaded and conquered by Nazi Germany.
Answers
Answer: The answer is B!!
Explanation: I just took the quiz and got it correct!
The statement best completes the timeline of French history is overthrown in the French Revolution.
What is meant by French Revolution?It put an end to feudalism, the French monarchy, and the political influence of the Catholic church. It introduced fresh ideas to Europe, such as individual freedom and liberty, the abolition of slavery, and women's rights. Napoleon Bonaparte declared himself France's "first consul" after a coup d'état, dissolving the Directory in the process.
Between 1787 and 1799, there stood a period of intense social upheaval known as the French Revolution. It aimed to redefine the nature of political power and completely alter the relationship between the rulers and those they governed.
Therefore. the correct answer is option B. The French monarchy is overthrown in the French Revolution.
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HELP ME PLEASE ITS URGENT THIS WAS DUE 5 MINUTES AGO
1. The Magnolia champaca is known for fragrant flowers and its timber is used in woodworking Use the information above to write a C.E.R paragraph to explain how this organism should be classified. Be sure to use the characteristics of life to support your claim. C = Make a claim (C) on which kingdom this organism belongs to. E = Use specific evidences (E) from the images above to support your claim. R Give your reasoning (R): Explain how and why your evidence supports the claim you made.
Answers
Answer:
it's C it's C it's C it's C it's c
why are viruses referred to as obligate fuasites?
a. Viral DNA always inserts itself into host DNA,
b. They connot reproduce ouside of a host cell.
c- the must use anzymes ecoded by theviras itself.
d- they invariably kilang cell they infect,
Answers
Answer:
b. They cannot reproduce outside of a host cell.
Explanation:
Viruses are parasitic organisms that need a host in order to thrive and reproduce. This means that they cannot replicate outside of a host cell, but can only do this by parasitizing it. They have to find a host cell in order to continue their life-cycle or else they won't thrive. The word "obligate" means being restricted to a specific mode or function in life. This shows that the virus has a restriction when it comes to reproduction. It cannot reproduce without finding a host cell.
What two cell processes allow multicellular organisms to reproduce?
Answers
Answer:
Mitosis & sexual reproduction
Explanation:
Multicellular organisms depend on mitosis for growth and repair. When an animal, plant or other multicellular organism grows, it makes more cells through mitosis. Organisms can repair some of their tissues, using mitosis to regenerate new cells.
What two ways of dealing with invasive species are more cost effective than trying to control an established population?
A)
government policy and education
B)
government policy and early eradication
C)
early eradication and increased fish farms
D)
early eradication and education
E)
none of the above
Answers
Answer:
D
Explanation:YESSSIR
Answer: D) early eradication and education
Explanation:
Answer on edge
In electron transport chain FADH, donates electrons to select one: O A NADH, O B. complex I O C. ubiquinone O D. iron sulfer within complex II O E. cytochrome C
Answers
Answer:
i think
Explanation:
.
Answer:
D. iron sulfur within complex II
Explanation:
FADH resulted from kreb's cycle donates it's electron(is reduced) to complex II. Where no protons are pumped inside the inter membranous space.
4.Copper is a good choice for wires because of its properties of
a. ductility and reactivity.
b. flammability and conductivity.
C. ductility and electrical conductivity.
d. thermal conductivity and malleability.
Answers
Answer:
Explanation:
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you
you find a litter of cats both parents and fathers cast of black you notice that 2 out of 8 or white how is this possible
Answers
What is the correct term for the production of specialized sex cells
Answers
Answer:
Meiosis
Explanation:
Meiosis is a cell division that takes place in the germ cells. The formation of human gametes is called gametogenesis.
In the process of meiosis, germ cells are formed from diploid, stem cells of spermatogonia and oogonia, ie. male and female gametes containing a haploid number of chromosomes, or half less than somatic ones. The importance of meiosis is reflected in the maintenance of a constant number of chromosomes from generation to generation.
read the question on the image
Answers
Answer:
cures for serious illnesses
Explanation:
3
Circulation to and from the lungs is referred to as
Answers
Answer:
pulmonary circulation
Explanation:
The pulmonary circulation moves the blood between the lungs and heart. Since the blood carries oxygen the heart pumps it to every body part including the lungs so we can maintain homeostasis.
Scientist perform ___ in order to ___ a given ___
Answers
Answer:
experiments, test, hypothesis