Answer:
24J
Explanation:
Given parameters:
Force = 16N
Height = 1.5m
Unknown:
Work done = ?
Solution:
Work done is defined as the force applied on a body to move it through a specific distance.
It is expressed as;
Work done = Force x distance
Now;
Work done = 16 x 1.5 = 24J
Explain the similarities between prokaryotic and eukaryotic cells. Explain the difference between prokaryotic and eukaryotic cells.
Answer:
Prokaryotes do not contain membrane-bound organelles or genetic information within nuclei, while eukaryotes contain membrane-bound organelles and do store their DNA in nuclei. Both types of organisms may be producers and consumers
Explanation:
Cells are the basic microscopic elements of all organisms. There are two cell types: Prokaryotes and Eukaryotes.
Prokaryotic describes single-celled microorganisms that do not have a cell nucleus or other organelles surrounded by membranes. Eukaryotes are either single-celled or form complex multicellular bodies. They contain many membrane bound organelles, and their genetic information is stored within a nucleus.
Both groups may contain structures like cell walls, and carry out heterotrophic or autotrophic nutrition.
Macrophages, cells that scavenge and break down pathogens, would likely contain many of these organelles.
Macrophages, cells that scavenge and break down pathogens, would likely contain many of lysosome organelles.
Macrophages are the cells of the body that are involved in the phagocytosis of foreign particles that invade the body.
Lysosomes are the organelles that are majorly involved in the phagocytosis process hence macrophages will have a large number of lysosomes in it in order for the process of phagocytosis to occur.
Lysosomes are organelles that are enclosed in a membrane and they carry out the process of phagocytosis because they have various digestive enzymes present. Apart from scavenging and breaking down pathogens, lysosomes can also break down and digest cells of the own body that are worn out.
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Why wouldn't you use a steel core as an electromagnet?
Answer:
this is because Steel is more difficult to magnetise and demagnetise but an iron core makes a temporary electromagnet because its lose its magnetism when the switch is open and and steel core is used to make a permanent electromagnet
A soil sample that is more than 60% clay will be called
A. sandy loam
B. loamy sand
C. clay
Answer:
b
Explanation:
Answer:
Clay
Explanation:
During respiration, members if the animal kingdom use___and then release___ as a waste gas.
A. Carbon dioxide; water vapor
B. Oxygen; carbon dioxide
C. Oxygen; hydrogen
D. Carbon dioxide; oxygen
Answer:
b
Explanation:
sketch the bonding of two amino acids, glycine and leucine, by a peptide linkage. now add a third amino acid, alanine, in the position it would have if added within a biological system. what is the directionality of this process?
The amino end of a polymer is always converted to the carboxy end.
What is polymerization?
The process of creating polymers is called polymerization. Following processing, these polymers are used to create a variety of plastic items. Smaller molecules, or monomers, are joined chemically to form larger molecules, or macromolecules, during polymerization.
The carboxyl end of the final amino acid in the sequence combines with the nitrogen group of a new amino acid in accordance with the directionality of polymerization. As a result, leucine and alanine will be connected.
The directionality of this process will be amino end to carboxy end.
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DNA evidence analysis is an imperfect science. Provide two reasons why this may be the case
Answer:
Because DNA analysis requires interpretation which can have errors or mistakes because interpretations are subjective no matter how many people agree with your interpretation even if it is right.
Explanation:
What is the answer for this one?
Answer:
Explanation:lol I n
Factors in the environment that an organisms reacts to, such as light, temperature, sound are known as.
Factors in the environment that an organism reacts to, such as light, temperature, sound are known as stimulus.
In the field of biology, a stimulus can be described as any kind of change in an environment that is perceived by the sensory receptors of an organism. In order to survive a change, the body has to produce a response to the stimulus.
When a change in the environment i.e stimulus is detected by the sensory receptors, a signal is carried to the central nervous system (CNS). The central nervous system (CNS) determines this change and sends a message through the effector motor neurons with a necessary response action.
Any change in the environment, such as a change in temperature, light intensity, or sound intensity is perceived by the sensory receptors and is a stimulus.
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1. asymptomatic avascular necrosis in patients with primary antiphospholipid syndrome in the absence of corticosteroid use: a prospective study by magnetic resonance imaging
Cell death in bone tissue happens as a result of a blood supply interruption in a condition known as avascular necrosis (AVN) of the bone.
Describe asymptomatic avascular necrosis.The most prevalent site of AVN is the femoral head, probably because of restricted circulation. Clinical signs and symptoms of AVN are non-specific, and the patient frequently experiences no symptoms at all. The best way to find AVN is via magnetic resonance imaging (MRI). A portion of the pathogenetic pathways behind AVN has been identified. Intravascular thrombosis or extravascular pressure with subsequent tamponade of the arterial arteries has been implicated. Numerous underlying illnesses can be linked to intravascular thrombosis.Learn more about the avascular necrosis with the help of the given link:
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Bio on edge!!!
Identify the terms using the following picture:
A purple sweet pea is shown.
-Item 1 is purple.
-Item 2 is PP.
Item 1 can be described as the ______ (genotype or phenotype)
Item 2 can be described as the ______ (genotype or phenotype)
The "p" represents _____ from one parent. (an allele or a trait)
Answer: B.) ✔ phenotype
A.) ✔ genotype
A.) ✔ an allele
the next answers are : dominant, recessive, and B.) ✔ recessive
Explanation: i hope this helps :)
Item 1 can be described as the phenotype.
Item 2 can be described as the genotype.
The "p" represents allele from one parent as shown in a purple sweet pea is shown.
What is the sweet pea?The Sweet pea has been known as the plant breed of a pea, and it has been of two types, white flower pea, and purple flower pea. Peas are green-colored, small spherical vegetables.
The Phenotype has the physical characteristics of a plant or animal that are shown in the outer and are used to identify the plant. These are color, shape, etc.
Genotypes are the genetic characteristics of a plant or animal. These characteristics are the internal traits, like growth, production, etc. They are transferred to the next offspring.
Alleles are the variations of the genes. They are of two types, dominant and recessive. These show the two characters of the same gene that are transferred in net generations.
Therefore, Item 1 can be described as the phenotype.
Item 2 can be described as the genotype.
The "p" represents allele from one parent as shown in a purple sweet pea is shown.
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I need help on this question
Answer:
B
Explanation:
Because the turtles are testudines.
The answer to the question is A
Which Sentence is true about cells?
(A) All cells do the same job
(B) All cells are the same inside.
(C) All Living things are made of cells.
(D) All living things have the same number of cells.
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory.
Which of the following scenarios can be classified as a negative feedback loop?
a increase in blood pressure to reduce heart rate
b increase in testosterone to help increase a fight-or-flight response
c increase in oxytocin caused by increased contractions
d increase in platelet production to help increase blood clotting
Answer:
The scenario that can be considered an example of a negative feedback loop is increase in platelet production to help increase blood clotting (option d).
Explanation:
Negative feedback loop is what occurs when a change occurs in the body, producing a response that decreases or stops that change, with the intention of maintaining homeostasis.
When there is a wound that produces bleeding, a series of mechanisms are activated, the coagulation cascade, which promotes the release of factors that allow the formation of clots. The increased release of platelets implies negative feedback because it helps to stop the change that occurs in the body, the loss of blood, through the formation of clots.
One thing that can cause confusion is the fact that this response also involves positive, though limited, feedback that promotes the production of clotting factors and platelets to increase clot formation. What really happens is that the positive feedback promotes the general feedback, which is the negative feedback: clot formation to stop the bleeding, restoring homeostasis.
The other options are not correct because:
a. Increase in blood pressure to reduce heart rate is not possible.
b. In the fight and flight response the hormones involved are cortisol and adrenaline, not testosterone.
c. Increased oxytocin in response to uterine contractions is positive feedback.
Answer:
A is the answer Not D
increase in blood pressure to reduce heart rate
Explanation:
You are writing a report for health class on teenage deaths due to motor vehicle accidents. You have found this pie chart that you intend to use in you report. Your references cited page shows the following entry for the pie chart: Insurance Institute for Highway Safety. 1993. [Unpublished analysis of 1990 data from the U.S. Department of Transportation's National Household Travel Survey, General Estimates System, and Fatality Analysis Reporting System]. Arlington, VA.
Elaborate on why might you reconsider using this pie chart in your report.
Responses
A The research is is not relevant: it is dated 1993, before the use of cell phones by teens.The research is is not relevant: it is dated 1993, before the use of cell phones by teens.
B The research is biased because it is written and presented by a government agency.The research is biased because it is written and presented by a government agency.
C The research is not verifiable; it comes from an unpublished government source.The research is not verifiable; it comes from an unpublished government source.
D The information is taken from survey data. This type of data is always considered to be biased.
Answer:
number
Explanation:
the research is irrelevant, because it was taken in 1993
Which of the following is not a frameshift mutation?
a. a mutation in a DNA chain that occurs when the number of nucleotides inserted or deleted is not a multiple of three.
b. every codon beyond the point of insertion or deletion is read incorrectly during translation
c. a mutation in a DNA chain that occurs when the number of nucleotides inserted or deleted is not a multiple of two.
d. every codon before the point of insertion or deletion is read incorrectly during translation
A frameshift mutation would very likely cause a change in phenotype.
False
True
Answer: a false
Explanation:
Pls help answers this from 1-6
Answer:1Monkey
2:BANNA
3:chimp
4:albino
5:DAB
Explanation:
Brainliest to the correct answer
Mr. Jones has blood type A and Mrs. Jones has blood type AB. What is the probability that they will have a child with blood type A if both of Mr. Jones's parents were AB?
A. 50%
B. 100%
C. 25%
D. 0%
If both of mr jone's parents were AB that means mr jone has both alleles for blood type a
Therefore there is a chance of 50% that they will have a child with blood type A.
The survival of a species depends on its ability to adapt to changes in the environment. A species must be capable of surviving and reproducing despite changes to food sources, climate, or threats from predators. Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment?
Mutations are always passed on to subsequent generations of the species
Mutations lead to genetic variation
Mutations are the cause of disease in the species
Mutations are not harmful when they occur in somatic cells of a species
Answer:
Your answer is B) Mutations lead to genetic variation.
Think of it like this, when rays were first starting to develop, they probably started with only one kind, stingless. Somewhere down the line, the genes of the rays started to mutate and eventually, there were stingrays and stingless rays. Now at this point there are predators that frequently feast upon the rays, so which of the two rays are more likely to defend themselves, and get away to live long enough to reproduce and pass on their genes? The stingrays! The mutation that may have occurred millions of years ago, has determined which organisms were more fit for a changing environment.
The survival of the species depends on the resources available and environmental conditions. The species or organisms capable to adapt to the surrounding have higher chances of reproduction and survival.
The correct answer is:
Option B: Mutations lead to genetic variation
The organisms adapting to the surrounding will undergo an alteration in their genetic sequence, known as mutations. The mutations are heritable and lead to genetic variation.
The mutation leads to genetic variation as:
It leads to the introduction of new alleles in the gene pool.Sexual reproduction and random mating also contribute to genetic variation. The mutations are heritable, and thus can cause an increase in the frequency of the mutated allele in the gene pool.
Thus, the correct answer is that mutation leads to genetic variation.
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Will a paper airplane with longer wings fly farther than shorter wings?
Answer:
yes
Explanation:
because pwede nya liparin hagang 10meters
Answer:
no .the shorter wings fly farther than longer wings
which societal problem can be solved,in part, by scientists identifying areas of high biodiversity
Protecting the environment societal problem can be solved, in part, by scientists identifying areas of high biodiversity.
Biodiversity- Biodiversity is all the different kinds of life which we find in one area—the variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural world. Each of these species and organisms work together in ecosystems, like an intricate web, to maintain balance and support life.
Microorganism- A living thing that can only be observed under a microscope. Protozoa, algae, fungus, and bacteria are all examples of microorganisms. Viruses are occasionally categorized as microbes even though they are not thought of as living things.
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give any two properties of soil
Answer:
Explanation:
The most important properties of soil are there texture and structure
which organelle converts chemical energy stored in food into compounds that are more convenient
lysosomes
membrane
mitochondria
nucleus
I give out brainly!
5. What does phenotype mean?
6. What are some examples of an organism’s phenotype?
Please help
What will most likely occur during a volcanic eruption if the magma that forms the volcano has a high viscosity?
A) The Magma will be ejected slowly, for,ing a volcano with gentle slopes
B) The magma will erupt violently, forming a steep-sided volcano
C) The magma will erupt violently, forming a volcano with gentle slopes
D) The magma will be ejected slowly, forming a steep-sided volcano.
Answer:
A. The amazing will be ejected slowly forming a volcano with gentle slopes.
Answer: B
Explanation:
Do organisms of the same species share the same niche?
silver oxide coatings with high silver-ion elution rates and characterization of bactericidal activity
The manufacture and characterisation of silver oxide films for application as bactericidal coatings are described in the research.
There are reports on the synthesis parameters, dissolution/elution rate, and bactericidal effectiveness. Reactive magnetron sputtering was used to generate the synthetic conditions necessary to produce AgO, Ag2O, or combinations of AgO and Ag2O on surfaces. All of the examined bacterial strains are hampered from growing by the coatings, which exhibit good adherence to numerous substrate materials. Escherichia coli and Staphylococcus aureus can be killed by the coatings, which also show a distinct zone of inhibition against bacteria growing on solid media and the capacity to quickly stop bacterial growth in planktonic culture.Learn more about the bactericidal activity with the help of the given link:
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simultaneous fermentation of cellulose and current production with an enriched mixed culture of thermophilic bacteria in a microbial electrolysis cell
To use cellulose to create electricity in thermophilic microbial electrolysis cells, an enhanced mixed culture of thermophilic (60°C) bacteria was put together (MECs). For the production of the current, cellulose was fermented into sugars and acids by anode-respiring bacteria (ARB).
What is Thermophilic bacteria ?The naturally occurring thermophilic bacteria, which may be found in hot springs and compost piles, are also present in cool soil habitats and can be triggered to break down chemicals when the temperature is raised to 60°C (140°F).
The manufacture of single cell proteins, waste bioconversion, enzyme technology, and chemical feedstock and fuel using thermophilic bacteria.Learn more about Thermophilic bacteria here:
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What are the differences between bacteria and viruses
Answer:
Bacteria are living organisms (They show characteristics of a living organism, they respire, move and reproduce), they can live inside or outside a body.
Viruses however, do not have a cell structure. They are not considered as living organisms. Viruses invade cells and uses the cell's machinery to make replicas of itself, in other words viruses can't live outside of a body
Carbon credits are used to a, rehabilitate tropical rainforests b. reduce the emission of volatile organic compounds (VOC's) C, regulate how much carbon dioxide a country can emit d. coordinate carbon sequestration activities Please select the best answer from the choices provided
Answer:
C - Regulate how much carbon dioxide a country can emit
Answer:
C
Explanation: