The fact that light can exert a pressure on matter suggests that it is made of particles called _____. photons electrons protons neutrons
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Related Questions
A peptide bond in a protein_________.
A. joins the carbon in the carboxyl group of an amino acid to its functional group
B. joins the central carbon of an amino acid to its functional group
C. joins the central carbon of one amino acid to the amino group of another amino acid
D. joins the carbon in the carboxyl group of one amino acid to the nitrogen in the amino group of another amino acid
E. is a specific type of hydrogen bond
Answers
A peptide bond in a protein__ joins the carbon in the carboxyl group of one amino acid to the nitrogen in the amino group of another amino acid._______. The correct option is D
What is Carboxyl group?
Carboxyl group can be defined as a functional group (-COOH) in organic chemistry consisting of a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group (-OH).
Carboxyl groups are found in many organic molecules, including amino acids and fatty acids, and play a crucial role in many biological processes such as cellular respiration and the formation of peptide bonds in proteins.
The correct option is D
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Adenine, Guanine, Cytosine and Uracil are nitrogenous bases that belong to
DNA
RNA
none of the above
Answers
Answer:
RNA
Explanation:
Uracil is for RAN and Thymine is for DNA
What is the condition called where a proximal portion of the stomach pushes through an opening in the diaphragm, allowing stomach acid to pass into the esophagus?
dyspepsia
dysphagia
hiatal hernia
esophageal varices
Answers
Answer:
hiatal hernia
Explanation:
Where is the carbon taken in by plants during photosynthesis stored?a. the groundb. plant structuresC. the aird. all of the above
Answers
The carbon is taken from the air and is used in photosynthesis to produce glucose (from carbon dioxide and water reacting with the sunlight). This carbon enter the leaves through the stoma and is incorporated into organic compounds within the plant structure (being stored there).
Therefore, the correct answer is b. plant structures.
what type of skills might be important in the field?
Answers
Answer:
good leadership, good copanisonship, and good working skills
Explanation:
Describe the environmental advantages and disadvantages of using hydroelectric power to generate electricity in the UK.
(6 marker)
Answers
Answer: Hydropower is generally available as needed; engineers can control the flow of water through the turbines to produce electricity on demand.
Explanation:
Answer:
Impact on Fish. To create a hydro plant, a running water source must be dammed.
Limited Plant Locations. While hydropower is renewable, there are limited places in the world that are suitable for plant construction.
Higher initial Costs.
Carbon and Methane Emissions.
Susceptible to Droughts.
Flood Risk.
explanation:
Hydroelectric power is energy created using the power and movement of flowing or falling water. It currently makes up only around 2.2% of Britain's total electricity supply, but has a long history in the country, having first been harnessed in 1878 to power the lights of Cragside country house in Northumberland. Globally, hydropower accounts for around 17% of all energy production, so should the UK rethink its approach to going green.
consider two closely related species of tropical frogs. one lives in central america, and the other lives in tropical africa. which is a reasonable hypothesis for this pattern of biogeography?
Answers
The two frog species once shared a range, but the Atlantic Ocean's creation has divided their present ranges into two distinct tropical regions.
What is biogeography?
The study of species distribution on Earth, both historically and currently, and how abiotic factors like habitat, climate, and topography affect that distribution, is known as biogeography. The three biogeographic disciplines of historical, ecological, and conservation make up the field.
Historical biogeography, also known as paleobiogeography, examines how the distribution of organisms today compares to that of the past. The distribution of species in response to biotic and abiotic environmental conditions is examined through ecological biogeography.
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Cichlid fish in the great lakes of Africa have undergone an explosive adaptive radiation of species in the last three hundred thousand years. What kind of speciation would this be
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The explosive adaptive radiation of species observed in cichlid fish in the great lakes of Africa would be an example of sympatric speciation.
Sympatric speciation occurs when new species evolve from a common ancestor within the same geographical area, without the physical separation of populations.
In the case of cichlid fish, the great lakes provide diverse ecological niches and habitats, creating opportunities for the fish to adapt and specialize in different ways.
The availability of various resources, such as food sources and breeding sites, can drive natural selection and promote the development of distinct traits and behaviors in different populations.
This process of adaptive radiation leads to the rapid diversification of species, as the fish exploit different ecological niches and evolve adaptations that allow them to occupy unique ecological roles within their shared environment.
Over time, this can result in the formation of numerous species with distinct characteristics, behaviors, and ecological interactions.
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A region experiences frequent landslides for m heavy rains. How can the local residents lower the frequency of landslides in the region?
Answers
To lower the frequency of landslides in a region experiencing frequent landslides due to heavy rains, local residents can implement the following measures:
Implement proper drainage systems: Constructing effective drainage systems can help divert excess water away from slopes and hillsides. This reduces the saturation of soil, minimizing the risk of landslides. The drainage systems can include channels, ditches, and underground pipes to efficiently manage the flow of water.
Plant vegetation and trees: Vegetation and trees play a crucial role in stabilizing soil and preventing erosion. Their roots bind the soil together, reducing the likelihood of landslides. Local residents can engage in afforestation and reforestation efforts, planting trees and vegetation on vulnerable slopes and hillsides. This helps enhance the stability of the soil and increases its ability to absorb water.
Terracing and contouring: Implementing terracing and contouring techniques can help control the flow of water down slopes. These practices involve creating steps or platforms on the slopes to slow down the movement of water and prevent erosion. Terracing and contouring also help in retaining moisture in the soil, reducing the risk of landslides.
By implementing these measures, the local residents can effectively lower the frequency of landslides in the region. Proper drainage systems, vegetation planting, and terracing techniques work together to manage water flow, stabilize soil, and minimize erosion, reducing the conditions that lead to landslides. These preventive measures can contribute to the overall safety and resilience of the area against landslides caused by heavy rains.
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an experimental treatment for parkinsons involves gene replacement therapy where a part of the brain is turned from excitatory to inhibitory. what center of the brain is targeted in this treatment?
Answers
In experimental treatment for Parkinson's disease involving gene replacement therapy, the specific brain region targeted is the subthalamic nucleus (STN). The treatment aims to modify the activity of the STN by turning it from an excitatory center to an inhibitory one.
Parkinson's disease is a neurodegenerative disorder that affects the central nervous system, particularly the dopamine-producing neurons in a region of the brain called the substantia nigra.
In Parkinson's disease, the gradual loss of dopamine leads to motor symptoms such as tremors, rigidity, and bradykinesia (slowness of movement).
The subthalamic nucleus is a small region located deep within the brain, specifically within a larger structure called the basal ganglia.
It is part of a complex network involved in regulating movement.
In the experimental treatment, the goal is to convert the subthalamic nucleus from an excitatory to an inhibitory state.
By doing so, the excessive neural activity that characterizes Parkinson's disease can be reduced.
This alteration in the subthalamic nucleus's activity can help restore the balance of signals within the basal ganglia, leading to improved motor function.
The gene replacement therapy involves introducing specific genetic material into the subthalamic nucleus to modify the activity of the neurons there.
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What is the probability of having fish with red scales shown on a table
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“Some viruses are programmed to reproduce by identifying bacteria, killing them, and assembling new viruses.viruses do not eat the bacteria and do not grow after they are made. Viruses are not alive. Explain two reasons why.”
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1. Viruses cannot reproduce on their own: Unlike living organisms, viruses cannot reproduce on their own. They need to infect a host cell and hijack the host cell's machinery in order to replicate themselves. Once they have infected a host cell, they use the cell's energy and resources to create new copies of themselves. However, they do not have the ability to reproduce outside of a host cell.
2. Viruses do not have the ability to carry out metabolic processes: Living organisms carry out metabolic processes, such as respiration and digestion, in order to obtain energy and nutrients. Viruses do not have the ability to carry out these processes on their own. They rely entirely on the host cell to provide them with energy and nutrients. In fact, viruses do not even have the necessary machinery to carry out these processes. They lack the organelles, such as mitochondria, that are responsible for energy production in living cells.
Select the part that fills most of the space inside a plant cell
A) Cell Wall
B) Cytoplasm
C) Mitochondria
D) Chromosomes
Answers
B) Cytoplasm. Additionally, the cytoplasm of plant cells contains huge, fluid-filled vesicles known as vacuoles.
The pectin polysaccharide matrix, which is highly cross-linked, contains a matrix of cellulose microfibrils, vesicles and cross-linking glycans that make up the cell wall. The cytoplasm of plant cells serves a variety of crucial purposes. It keeps the cell in its proper shape, offers vital support to the internal structures, and serves as the organelles' suspension medium. The gel-like substance that fills a cell is called cytoplasm. It serves as a catalyst for chemical reactions. It offers a foundation for other organelles to function within the cell.
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In chicken, black (BB) and white (WW) are codominant. If two black chickens
were crossed, what would be the possible resulting phenotypes of their
offspring?
A. 100% white
B. 100% black
C. 50% black 50% white
D. 75% black 25% white
Answers
Answer:
100% black
Explanation:
Since there are the presence of only the black color trait, there would be no white color trait.
Co-dominancy would only show if a black chicken and white chicken were crossed.
The science disaster at mission middle school… I need the answers the answer should be a score
Answers
The Science Disaster at Mission Middle School is a written assignment designed to emphasize science lab safety standards and regulations. This exercise focuses on any and all safety restrictions/ precautions that you may implement in your scientific lab.
What are basic lab safety protocols?The Environment, health and safety practices that must be employed to ensure a save laboratory environment are:
With respect to Food and Drink:
First and foremost, eating or drinking in the lab increases your chance of exposure to harmful compounds.Food and drink can make a mess, raising the risk of infection and perhaps attracting pests.Eating or drinking in the lab can potentially be a source of distraction, resulting in a spill or a more serious incident.With respect to Personal Protective Equipment:
When working in the lab, long trousers and shoes that completely cover the top of the foot should be worn at all times.Lab coats protect your clothes and skin and should be worn at all times.Eye protection is provided by safety glasses or goggles, which must be worn at all times.Gloves shield your skin from potentially harmful substances. When you're finished with them, make sure to properly dispose of them.Other practices to abide by are:
Maintain good personal hygieneUse recommended storage containersEnsure that your work space and work tools are labelledRemain at alert about your environment and never work aloneUse and put away batteries properly.Learn more about laboratory protocols:
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Some people think hydropower should be used to supply all of the electricity
for the United States. Which of the following statements describes a flaw in
this plan?
A. Hydropower contributes to the greenhouse effect.
L
B. Hydropower can be used only in the desert.
C. Hydropower is used only as transportation fuel.
D. Hydropower can harm native aquatic populations.
Answers
Answer:
D. Hydropower can harm native aquatic populations.
Explanation:
Hydropower is the power of water or hydrosphere and is the cheapest and simplest form of energy. The hydrosphere is a renewable source of energy and is thus non-polluting but most of the hydropower that is converted into electricity is harmful to the marine and aquatic life forms. As it disturbs their habitats and created chemical and physical change in the body of water. Such as depletion of oxygen and enrichment of nutrients.1. What is the Celsius Temperature Scale of K=303?
2. What is Celsius Temperature Scale if degree Fahrenheit is 392
3. What is Fahrenheit Temperature Scale if degree Celcius is 70?
Answers
The difference between the Celsius (C) and Kelvin (K) scales is simply the 0 point. So to do the conversion, just add 273
1. What is the Celsius Temperature Scale of K=303?29,85 ºC
2. What is Celsius Temperature Scale if degree Fahrenheit is 392?200ºc
3. What is Fahrenheit Temperature Scale if degree Celcius is 70?158ºF
What is Celsius Scale?Water is the most important element for life on earth. The Celsius scale has zero point at the temperature at which water freezes and 100 at the temperature at which water boils. Measurements are then made in degrees Celsius (°C).
What is Fahrenheit Scale?Daniel Gabriel Fahrenheit chose as the zero point the freezing temperature of a mixture of water and salt and the maximum point (96) the temperature of a healthy man. So pure water freezes at 32° Fahrenheit (F) and boiling at 212°F.
What is Kelvin Scale?William Tomson (known as Lord Kelvin) studying the behavior of gases, discovered the lowest temperature that a body could reach, which would be equivalent to -273°C. From there he determined the zero point of his scale. He thus created what we call the absolute scale, as it uses a universal phenomenon as a reference. In it, water freezes at 273 Kelvin (K) and boils at 373 K - note that we do not use degrees, as this is the absolute scale and not a comparison between phenomena like the other scales.
With this information, we can conclude that To convert temperatures in degrees Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.
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pls help biology edge
Which statement BEST compares how matter and energy move among organisms in the food chain?
A
Matter cycles among organisms and energy flows among organisms in the system, and both matter and energy are conserved.
B
Matter flows among organisms and energy cycles among organisms in the system, but only matter is conserved.
C
Matter and energy both cycle among all organisms in the system, and both matter and energy are conserved.
D
Matter and energy both flow among all organisms in the system, but only energy is conserved.
Answers
The best statement that compares how matter and energy move among organisms in the food chain is that Matter and energy both flow among all organisms in the system, but only energy is conserved. That is option D.
What is Matter?Matter is defined as anything that has weight or mass and has the ability to occupy space.
Food chain is defined as the cycle that shows the feeding relationship between organisms and how they depend on each other.
The number of organisms decreases from producer(plants) to consumers (animals).
Therefore, Matter and energy both flow among all organisms in the system, but only energy is conserved.
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.What advantage would using a compound light microscope have over using a dissecting microscope?
Answers
The dissecting microscope is configured to allow low magnification of three-dimensional objects- objects larger or thicker than the compound microscope can accommodate. Furthermore, the two separate lenses of the binocular dissecting microscope allow one to see objects in three dimensions, i.e., in stereo
Water, fuel, food, and raw materials are examples of what?
1. natural resources
2. cultural services
3. regulating services
4. cycling of matter and energy
Answers
In a certain kind of plant, yellow leaves (Y) are dominant and red leaves (y) are recessive. What percentage of the offspring from a cross between a Yy
plant and a yy plant are predicted to have red leaves?
(Hint: Draw a Punnett
square to help you determine the answer.)
A. 50%
B. 0%
C. 25%
D. 75%
Think is A but not sure prove me wrong
Answers
Answer:
Its A 50%
Explanation:
How does the shape of red blood cells best represent the relationship between structure and function?
Answers
A purple blood mobileular has what's referred to as a biconcave form. Both facets of the mobileular's floor curve inward just like the indoors of a sphere. The shape is known as biconcave disk.
This form aids in a purple blood mobileular's cappotential to move via tiny blood vessels to supply oxygen to organs and tissues.The round erythrocyte is synthesized with inside the bone marrow with inside the mammals that's biconcave in shape.
After synthesis, the nucleus is eliminated through the manner known as nucleation. The absence of a nucleus lets in the crimson blood cells to incorporate greater hemoglobin and as a result convey greater oxygen.
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If Tami's red blood cells have both A and B antigens, which blood type does she have?
Answers
Answer:
c. AB
Explanation:
Which statement is true regarding cystic fibrosis? It is autosomal-dominant. It affects endocrine glands. It is common in African Americans. It is the most common genetic disease in the United States.
Answers
Answer:
The correct answer is - It is the most common genetic disease in the United States.
Explanation:
Cystic fibrosis is the genetic disease that affects the several body system and organ such as lungs and digestive system. This hereditary disease is autosomal recessive.
It is not common in ethnic populations such as African Americans and Asian Americans while in white population of US it is a very common genetic disease as it occurs in one individual in every 2500 to 3500 white infants.
Thus, the correct answer is - It is the most common genetic disease in the United States.
IM GIVING U A WHOLE 50 POINTS PLS SOS ILL REPORT OTHER ANSWERS
1.The immune response requires a team effort. How do the specific and non-specific defenses work together? EXPLAIN YOUR ANSWER. They help each other defeat the antigen.
2.Human Immunodeficiency Virus (HIV) is a virus that infects (and destroys) Helper T Cells. As a result, people who are HIV+ generally have a low number of these T Cells. How would a dramatic decrease in Helper T Cells affect a person’s immune response? Be specific using details from what you learned about the immune response.
3.If a doctor wanted to run a blood test to determine whether or not a person was immune to the measles virus, would they need to look for measles antigens or measles antibodies? EXPLAIN YOUR ANSWER.
Answers
Answer:
Examples of RNA viruses include the AIDS virus HIV, the influenza viruses, ... For example, nearly 80% of all cervical cancers are caused by specific ... Antibodies can also tag viruses so that they can be recognized and destroyed by immune system ... Some viruses cause infected cells to produce another type of cytokines
Explanation:
2) HIV decreases the body’s immune system dramatically and is the cause of Helper T Cells that decrease.
3) they would test for the antibodies since those are what are in vaccines, they keep the virus away!!!
Hope this helps!
Good luck!
Animals eating plants or other animals is an example of phosphorus going from
A.abiotic to biotic
B. abiotic to abiotic
C. biotic to biotic
D. biotic to abiotic
Answers
Answer:
C
Explanation:
They're both alive. It's biotic to biotic.
Alex was brought into the clinic by his
football coach that stated that Alex is
delirious, has intense cramps and has been
vomiting since he drank over 1000 mL of
water in under 45 minutes at football
practice.
Normally, the sodium concentration inside
the cells is equal to the sodium
concentration outside of the cell. However,
drinking this much water in a short amount
of time will cause the inside
of the cell to become diluted.
To compensate, water from
the outside of the cell will
rush into the cell, causing
water intoxication.
Which cell
organelle
allows this to
happen?
Answers
Answer:blood
Explanation:
The cell membrane allows water to rush into the cell when it becomes diluted due to excessive water intake.
The cell organelle that allows water to rush into the cell when it becomes diluted due to excessive water intake is the cell membrane. The cell membrane is selectively permeable, meaning it controls what substances can enter and leave the cell.
In this case, the dilution of the cell causes the concentration of solutes inside the cell to be lower than the concentration outside, leading to osmosis, where water molecules move from an area of higher concentration to an area of lower concentration through the cell membrane.
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Which of the following is organized from smallest to largest?
A Chromosome, gene, nucleic acid
B Nucleic acid, chromosome, gene
C Nucleic acid, gene, chromosome
D Gene, chromosome, nucleic acid
Answers
The nuclues, ribosomes, ER, Golgi appartus, and vesicles are all involved in what process?
Answers
Answer: Protein synthesis
Explanation: The nucleus, ribosomes, ER, Golgi apparatus, and vesicles are all involved in protein synthesis.
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sequence read 3 was synthesized by sequencing which strand of dna? neither 5' --> 3' and 3' --> 5' strands 3' --> 5' strand both 5' --> 3' and 3' --> 5' strands 5' --> 3' strand
Answers
Sequence read 3 was synthesized by sequencing 5' --> 3' strand of DNA (Option D).
What is DNA sequencing?DNA sequencing is a technique used to find out the precise order of nucleotides (Adenine, Guanine, Cytosine, Thymine) in a DNA molecule. In other words, it is the method of decoding the DNA sequence. The determination of DNA sequence has numerous applications in various fields such as molecular biology, genetics, evolutionary biology, forensic science, medical diagnosis, and drug discovery.
In the case of DNA sequencing, the DNA molecule is synthesized in the 5' --> 3' direction. So, the DNA sequence is also written in the 5' --> 3' direction. Sequence read 3 (SR3) is one of the several DNA sequence reads obtained by the sequencing method. Sequence read 3 was synthesized by sequencing the 5' --> 3' strand of DNA.
Therefore, the correct option is 5' --> 3' strand (Option D).
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