true or false: inhibiting nmda receptor function during the retention interval can prevent forgetting.
Answers
It is true that inhibiting NMDA function during the retention interval can prevent forgetting.
What are NMDA receptors?The drugs that enhance NMDA receptor function accelerates forgetting but drugs that interfere with NMDA function prevents forgetting.
It has been shown that NMDA-receptor blockade after learning a task has no effect on memory performance in humans. Whereas blockade of receptors before learning results in memory impairment receptor function during the retention interval can prevent forgetting.
NMDA receptors have to undergo a ligand-induced conformational change to get activated. Glutamate is released from the presynaptic terminal into the synaptic cleft at a very high concentration that binds to the postsynaptic NMDA receptors for inducing channel pore opening. NMDA receptors perform regulation of the development of neuronal intrinsic excitability through cell-autonomous mechanisms. Maturing of neuronal and synaptic functions during early life is essential for the development of neuronal circuits and behaviors.
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Related Questions
(Score for Question 3:
of [3] points)
3. Explain the role of a hypothesis in a scientific investigation.
Answer:
Short answer please
Answers
Answer:
When a scientific problem is posed and clearly defined, in the search for its final solution, one starts from a hypothesis.
Explanation:
A hypothesis is a solution to a scientific problem that is:
thoughtfully clearly formulated in the statement trial significant (non-trivial) logically and experientially permissible theoretically well explained by available scientific knowledge experientially verifiablein the early 1800s, light-colored moths could be found resting on light-colored trees in england. at the beginning of the industrial revolution, the trees began to turn dark because of black soot from factories. by 1898, most of the moths found in england were dark in color. which most likely enabled the dark-colored moths to survive and reproduce more than the light-colored moths?
Answers
The dark-colored moths most likely had an advantage in surviving and reproducing over the light-colored moths due to natural selection favoring their camouflage against the darkened trees.
As the industrial revolution caused trees in England to become covered in black soot, the light-colored moths that were once well-camouflaged on the light-colored trees became more visible to predators against the darkened background. In contrast, the dark-colored moths had a higher chance of blending in with the new environment, industrial melanism making them less likely to be detected and eaten by predators.
This change in the environment exerted selective pressure on the moth population. Predators selectively targeted the more visible light-colored moths, resulting in a higher predation rate for that variant. Meanwhile, the dark-colored moths, with their better camouflage, had a higher survival rate and increased reproductive success. Over time, this led to an increase in the frequency of the dark-colored allele in the moth population.
The phenomenon, known as industrial melanism, is a classic example of natural selection and demonstrates how environmental changes can influence the survival and reproductive success of different phenotypes within a population.
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The diameter of the sun is 432,690 miles. The earth and Venus are 93,000,000 miles 67,000,000 miles from the sun. When the sun expands to a red giant, what will its radius be? Will it vaporize Venus and the Earth? Show your math.
Answers
Answer:radius is 5,672
it will not vaporize venus and eart.
Explanation:
if 108 out of 300 individuals in a population expresses the recessive phenotype what percent of the population are heterozygous
Answers
Answer: q = 0.2 and p+q then p=0.8 (80%)
Explanation:
2+2??
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Melanie is using the spinner to play a card game. The spinner has six sections of equal size. A spinner.Short description, A spinner.,Long description,A spinner is divided into 6 equal sections.One section is labeled, play a card.Two sections are labeled, take 3 cards.Two sections are labeled, take 2 cards.One section is labeled, lose a turn.QuestionWhat is the probability that Melanie will have to ,begin emphasis,take cards,end emphasis, when she spins the spinner?Answer options with 5 options
A.one-sixth
D.two-thirds
B.one-fourth
E.three-fourths
C.one-third
Answers
Answer:
two-thirds
Explanation:
You are a scientist on the soloman islands. You are assigned with making recommendations
Answers
Biodiversity Conservation: The Solomon Islands are home to rich biodiversity, containing singular environments and endangered class.
What is the recommendations?It is important to plan out biodiversity preservation through system which controls organization and administration of protected fields, in the way that nationwide parks and sea reserves
Climate Change Adaptation: The Solomon Islands are vulnerable to the impacts of temperature change, containing climbing ocean levels, raised frequency of extreme weather occurrences, and sea acidification. It is main to expand and implement agreement actions that focus on marshy care, tenable land use preparation, and trend-resilient foundation
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Help me please...
The image below shows three bones in the leg: the femur, the fibula, and the tibia.
What is the structural category of the tibia?
long
short
flat
irregular
Answers
Tibia is categorized as a long bone. (you can see how long it is in the diagram)
Answer:
long bone
Explanation:
edg 2021
why is Valparaiso Chile hotter than Sydney Australia if they are at the same latitude?
Answers
Answer:
Places at the same latitude may have very different climates if one is on a coast and one is inland. On the coast, the climate is influenced by warm moist air from the ocean. ... Farther inland, the climate is influenced by cold or hot air from the land. This air may be dry, because it comes from over land
hope it helps
7. Which type of mass movement occurs rapidly
when a single mass of soil and rock suddenly
slips downhill?
A. creep
B. landslide
C.mudslide
D. slump
Answers
Answer:
The most destructive type of mass movement is a landslide, which occurs when rock and soil slide quickly down a steep slope. Some landslides may contain huge masses of rock, while others may contain only a small amount of rock and soil. A mudflow is the rapid movement of a mixture of water, rock, and soil.
••••••••••••••••
What is the science method used in mixing
Answers
Mixing methods are thought to generate ternary, quaternary, and multi-element systems, resulting in the formation of nanocomposite hard coatings.
Compound targets are used in the deposition of hard coatings to accomplish this. A typical mixer concurrently produces two sorts of patterns: radial mixing and flow division.
Rotational circulations of a treated substance around its own create radial mixing in the first scenario. To diminish or eliminate radial gradients in temperature, velocity, and material composition, processed material is intermixed.
A processed material separates at the leading edge of each mixer element and follows the channels defined by the element shape in the case of flow division.
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A collision between which two types of crust will most likely produce a mountain range?
Answers
Answer:
Be more specific
Explanation:
Answer:
A convergent boundary
Explanation:
Convergent boundaries are pieces of crust that collide against each other. They push upwards, and that land that is pushed upwards is a mountain. Mount Everest is a good example. It was made in two tectonic plates, and since these plates are still pushing upwards to this day, this mountain grows around 40 cm each year. I hope this helps!
6) Scientists think this land also used to be covered by large plants. Looking at the fossils, when do you think this was? million years ago
Answers
The fossils that existed millions of years ago serves as an evolutionary link that explains the sequence of events on earth.
What are fossils?Fossils are the remains of organism that existed hundreds or thousands of years ago. The existence of these fossils gives us an idea of the evolutionary history of the earth ad the kind of species that have once lived here.
Thus the fossils that existed millions of years ago serves as an evolutionary link that explains the sequence of events on earth.
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During respiration, which reactant molecules do the C atoms in Co2 come from? Do they from the oxygen or the glucose
Answers
Answer:
This reaction shows that all of the atoms in the glucose and oxygen gas reactants are accounted for in the carbon dioxide and water products. The reactions of cellular respiration can be grouped into three stages: glycolysis, the Krebs cycle (also called the citric acid cycle), and electron transport.J
Explanation:
bc i know
after 24 hours of incubation, you observe 200 colonies present on an lb plate onto which you had previously spread 50 μl of a cell suspension. what is the concentration of the cell suspension?
Answers
Every microbiology experiment requires incubating the plates to encourage microbial growth.
Bacteria that could be harmful to people are less likely to grow while incubating in aerobic conditions and at temperatures below those of the human body. The likelihood that students will open plates when viewing is decreased by taping the lids on, but if there is still a high risk, there are instructions on how to entirely destroy the plates below.
Before incubation, all infected plates must be taped to prevent accidental opening. Fix this by placing two to four small strands of sticky tape at the dish's opposing sides. Complete sealing could encourage the growth of anaerobic germs or hinder normal growth by limiting oxygen diffusion.
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Which of the following is NOT a disadvantage of asexual reproduction?
A. Does not need a mate
B. Little genetic variation
C. Mutations can occur
D. All susceptible disease
Answers
Answer:
A
Explanation:
It is an advantage to not need a mate so the organism doesnt need to spend as long looking for one
Hope that helps
Answer:
A. Does not need a mate
Explanation:
Had to change my answer so nobody got it wrong
a scientist is comparing the outer layer of an onion cell
Answers
Explanation:
Scientists compare the outer layer of onion cells with the outer layer of human skin cells. What makes the outer layer of onion cells unique compared to skin cells? Contains cellulose.
What are the two circulations that comprise the overall circulatory system?
a. Pulmonary and systemic circulations
b. Peripheral and central circulations
c. Cardiovascular and lymphatic circulations
d. Cardiopulmonary and peripheral circulations
Answers
The two circulations that comprise the overall circulatory system are pulmonary and systemic circulations. So, option A is accurate.
Pulmonary circulation:
This circulation involves the movement of blood between the heart and the lungs. Deoxygenated blood is pumped from the right side of the heart to the lungs, where it picks up oxygen and releases carbon dioxide through the process of gas exchange. Oxygenated blood then returns to the left side of the heart to be distributed to the rest of the body.
Systemic circulation:
This circulation involves the movement of oxygenated blood throughout the body. After receiving oxygenated blood from the lungs, the left side of the heart pumps it into the systemic circulation. Blood is delivered to various organs, tissues, and cells, providing oxygen and nutrients while removing waste products. Deoxygenated blood returns to the right side of the heart to start the process again.
Together, pulmonary and systemic circulations ensure the proper oxygenation and nourishment of the body's tissues and organs, maintaining overall cardiovascular function.
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why do you think dna has had such an impact on forensic science? what do you think would be some of the challenges in collecting dna evidence? how would you overcome these challenges? compare and contrast nuclear dna with mitochondrial dna. which one would you want to use in a criminal investigation if you had the choice? which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why? what challenges do you think giving expert testimony about dna would have? how would you try to overcome these challenges?
Answers
DNA has had a profound impact on forensic science due to its ability to provide highly specific and reliable identification of individuals. Its unique characteristics, such as individuality and stability, make it an invaluable tool in criminal investigations.
However, challenges in collecting DNA evidence exist. Contamination risks must be minimized through strict protocols and precautions, while proper storage and preservation techniques are necessary to prevent degradation. Additionally, analyzing mixed DNA samples and interpreting complex statistical results can pose difficulties.
To overcome these challenges, forensic scientists adhere to rigorous protocols, use sterile collection tools, and follow appropriate storage and preservation methods. Advanced laboratory techniques, such as DNA extraction and profiling technologies, aid in accurate analysis.
When comparing nuclear DNA and mitochondrial DNA, nuclear DNA is preferred for individual identification and relationship testing, while mitochondrial DNA is useful for maternal lineage and degraded or mixed samples.
Providing expert testimony about DNA in court may involve communicating complex scientific concepts clearly, explaining statistical interpretations, and addressing challenges during cross-examination.
Collaboration with legal professionals and ongoing training can also enhance the effectiveness of expert testimony in DNA-related cases.
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The stars appear to move across the sky every day, but
their paths change throughout the year. Here is a model of
the Sun-Earth system.
Based on the model, which three factors might cause this change in the
apparent movements of the stars?
Answers
Answer:
Earth's Revolution around the sun, The tilt of Earth's Axis, and Earth's rotation on its axis.
Explanation:
I have done this test
1. The Earth's revolution around the Sun: As the Earth revolves around the Sun, the stars appear to move across the sky each day. This is because the Earth is rotating on its axis, which causes the stars to appear to be moving from east to west.
2. The Earth's tilt: The tilt of the Earth's axis also has an effect on the apparent movement of the stars. As the Earth rotates around the Sun, the tilt of the Earth's axis changes throughout the year. This causes the stars to appear to move slightly differently at different times of the year.
3. The Precession of the Equinoxes: The precession of the equinoxes is the gradual wobble of the Earth's axis which takes place over thousands of years. This has an effect on the apparent movement of the stars, as the angle of the Earth's axis changes over time. This causes the stars to appear to move in a slightly different pattern than they did thousands of years ago.
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Question1:
What is aggregation with respect to OOP? – (1 mark) In your explanation you must:
- Differentiate between the two forms aggregation and composition. (1 mark each)
- Explain how they are shown in UML. – (0.5 marks each)
Question2:
Clearly explain the difference between an object and a class (you may use examples or diagrams to assist).
What is an access modifier and why is it important? -( 1 mark for its importance and usage)
In your explanation you must also indicate:
- The differences between public and private access modifiers. -(0.5 marks each)
How are they shown in a UML diagram. –(0.5 marks each)
Answers
Aggregation with respect to OOP is a technique of object composition that is employed when one object is a part of a larger object, but the smaller object may exist independently of the larger one. The primary difference between composition and aggregation is that in composition, the objects cannot exist independently of the composite object, whereas in aggregation, the objects may exist independently.
An object is an instance of a class, while a class is a template or blueprint for creating objects. An object is an instance of a class that contains all of the characteristics of the class, including its attributes and methods, whereas a class is the definition or representation of those attributes and methods
It is necessary to include the private keyword in the definition of a class, method, or variable to make it private. In UML diagrams, a plus symbol (+) is used to indicate a public method, while a minus symbol (-) is used to indicate a private method.
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How much is DNA important to identify a group? Give a brief explanation on race ,whiteness and property? Does biological anthropologists and genome scientist need to add the relation between Europeans and Indigenous people while doing their research?
Answers
DNA is important in identifying genetic relationships within a group, but it alone is not sufficient to determine complex social constructs like race, whiteness, or property; the inclusion of social, cultural, and historical factors is crucial in understanding these concepts.
Biological anthropologists and genome scientists should consider the relationship between Europeans and Indigenous people in their research to provide a more comprehensive understanding of human genetic diversity and population history.
DNA analysis can provide valuable insights into genetic relationships within a group, such as determining genetic ancestry or identifying related individuals. However, race, whiteness, and property are social constructs that go beyond genetic factors and are shaped by historical, cultural, and socioeconomic factors. These concepts are complex and cannot be solely explained by genetic data. Therefore, it is important for researchers, including biological anthropologists and genome scientists, to recognize the limitations of genetic data and consider the broader social context when studying race, whiteness, and property.
In the context of researching Europeans and Indigenous people, it is crucial for researchers to acknowledge and incorporate the historical and ongoing relationships between these groups. This includes understanding colonization, displacement, and the impact of power dynamics on genetic diversity and health outcomes. By including this relationship in their research, scientists can contribute to a more accurate and nuanced understanding of human genetics and promote social and scientific equity.
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which of the following are contained in the nucleus? select all that apply a) lysosome. b) ribosomes. c) nucleolus. d) dna. e) mitochondria,
Answers
The following are contained in the nucleus: c) nucleolus and d) DNA.
The nucleolus (Option C) is a distinct structure found within the nucleus. It plays a crucial role in the production and assembly of ribosomes, which are involved in protein synthesis.
The nucleus also houses the DNA (Option D), which carries the genetic information of an organism. DNA contains the instructions for the development, functioning, and reproduction of living organisms.
On the other hand, lysosomes, ribosomes, and mitochondria are not contained in the nucleus. (Option A) Lysosomes are membrane-bound organelles responsible for cellular waste digestion and recycling. They are typically found in the cytoplasm of a cell, not within the nucleus.
(Option B) Ribosomes are involved in protein synthesis. While the nucleolus helps in the production of ribosomes, the actual site of protein synthesis is in the cytoplasm, either freely floating or attached to the endoplasmic reticulum. Ribosomes are not contained within the nucleus.
(Option E) Mitochondria are double-membraned organelles responsible for producing energy in the form of ATP (adenosine triphosphate) through cellular respiration. Mitochondria have their own DNA and replicate independently of the nucleus. They are not contained within the nucleus.
Therefore, the correct answer is Option C and D.
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foreign dna can be inserted into cells using a variety of different methods. which method involves the formation of microscopic pores in the cell's membrane? view available hint(s)for part a foreign dna can be inserted into cells using a variety of different methods. which method involves the formation of microscopic pores in the cell's membrane? electroporation heat shock transformation protoplast fusion
Answers
The method that involves the formation of microscopic pores in the cell's membrane to insert foreign DNA is electroporation.
This is a technique used to introduce foreign DNA into a cell by exposing it to a high electric field. The electric field causes the formation of microscopic pores or channels in the cell membrane, which allows foreign DNA to enter the cell.
During electroporation, cells are suspended in a solution containing the foreign DNA, and an electric field is applied to the cells. The electric field causes the formation of pores or channels in the cell membrane, which allows the foreign DNA to enter the cell. Once inside the cell, the foreign DNA can be incorporated into the cell's genome, where it can be expressed and produce a desired protein.
Electroporation is a commonly used technique in molecular biology for introducing foreign DNA into bacterial, yeast, and mammalian cells. It is a versatile and efficient method that can be used to study gene function, produce recombinant proteins, and develop gene therapies.
In conclusion, electroporation is a method used to insert foreign DNA into cells by forming microscopic pores in the cell's membrane. This technique is widely used in molecular biology and can be used to study gene function, produce recombinant proteins, and develop gene therapies.
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1. Which kind of evidence did scientists use to determine that some animals moved back to a marine life after first evolving as land mammals?
a. The fossil record
b. Comparison of homologous structures
c. DNA evidence
d. All of the above
Answers
Answer:
Instead of gathering evidence from a single field, the pair pulled together research from many disciplines, including paleontology, molecular biology and conservation ecology, to give a far larger picture of what was happening when animals transitioned from the land to the sea across millennia.
Explanation:
it's probably D. all of the above because scientists use all of these examples
but im not 100% sure
1) What is the function of a protein? A) provides a quick supply of energy, main source of energy B) dissolves and carries nutrients, removes waste, and regulates body temperature C) builds new tissues antibodies, enzymes, hormones, and other compounds: repairs damage D) facilitate use of other nutrients involved in regulating growth and manufacturing hormones
Answers
(c) building new tissues antibodies, enzymes, hormones, and other compounds is the function of a protein.
what is enzymes?Proteins called enzymes serve as biological catalysts by quickening chemical reactions. Substrates are the molecules that enzymes can interact with, and the enzyme changes the substrates into other molecules known as products.
what are tissues ?A collection of cells with similar structures and functions is referred to as a tissue. The intercellular matrix, a nonliving substance, fills the spaces between the cells. There might be a lot of this in some tissues and not much in others.
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8. _____energy is needed to get a reaction to go.
9. The joining of an enzyme and substrate is called the what
Complex?
10. The result(s) of a chemical reaction is/are called____?
Answers
Answer:
8.activation
9.enzyme substrate
10.product
In humans, brown eyes are generally dominant over blue eyes. Find the phenotypic and genotypic ratios of a cross between two heterozygous brown-eyed people. Choose This is a required question
Answers
Answer:
Brown eyed genotype: Aa (eterofzygous) or AA (homofzygous)
The genotypes derived from the cross are: AA, Aa, Aa, aa
The phenotypes are: 3 with brown eyes and 1 with blue eyes (aa)
The phenotypic ratio is 3:1 (brown eyes: blue eyes) and the genotypic ratio is 1:2:1 (dominant homozygous: heterozygous: recessive homozygous).
What happens in a heterozygous cross?In humans, the allele for brown eyes (B) is dominant over the allele for blue eyes (b). Heterozygous individuals, who carry one copy of each allele (Bb), will have brown eyes.
When two heterozygous brown-eyed individuals (Bb) cross, the possible genotypes of their offspring are:
BB (brown eyes): 25% chance (homozygous dominant)
Bb (brown eyes): 50% chance (heterozygous)
bb (blue eyes): 25% chance (homozygous recessive)
So, the genotypic ratio of the offspring is 1:2:1 (BB:Bb:bb).
As for the phenotype, the only possible one is brown eyes and it occurs in 75% of the offspring (25% BB + 50% Bb)
Therefore, the phenotypic ratio of the offspring is 3:1 (brown eyes: blue eyes)
It's worth noting that while this is the typical outcome of crosses involving the eye color genes, it's not universally accurate, as other factors and genes might have an influence on the phenotype. Additionally, in reality, eye color is a complex trait and many other genes are involved not just B and b, so the dominance is not always that clear.
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Column b
column a
1. windbreaker
a. extracted from wood pulp of sugar plant
2. wood
3. lumber
b. product made from fiber harvested from wood
pulp of trees.
4. paper
c. derived from sap of some trees.
5. rubber
6. turpentine
d. the product produced from juice of some
trees.
7. erosion
e. slows down speed of typhoons/storms.
8. sugar
9. carbon dioxide
f. this is what man gives off.
10. oxygen
g. major source of fiber for the production of pulp
and paper
h. this is what trees give off.
i. processed wood used to construct houses for
man and animals.
j. geological process in which earthen materials are
worn away and transported by natural forces
such as wind or water.
Answers
The correct match for column a and column b questions are as follows:
1. Windbreaker (e) - slows down the speed of typhoons/storms.
2. Wood (g) - major source of fiber for the production of pulp and paper.
3. Lumber (i) - processed wood used to construct houses for man and animals.
4. Paper (b) - product made from fiber harvested from wood pulp of trees.
5. Rubber (d) - the product produced from juice of some trees.
6. Turpentine (c) - derived from sap of some trees.
7. Erosion (j) - geological process in which earthen materials are worn away and transported by natural forces such as wind or water.
8. Sugar (a) - extracted from wood pulp of sugar plant.
9. Carbon dioxide (f) - this is what man gives off.
10. Oxygen (h) - this is what trees give off.
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Consider the following statement and the diagrams below and answer the questions. *Permanent tissues displaced a variety of shapes and cell wall features that are related to their functions in the plant.
Answers
Option a is parenchyma, option B is collenchyma, and option C is scelerenchyme. All three of these are types of plant tissues that provide structural support and perform various functions in plants.
Parenchyma is one most the common and versatile type of plant tissue that consists of living cells with thin cell walls. Parenchyma cells are generally isodiametric, and they have large central vacuoles. The cells can store nutrients such as starch, proteins, and water, and take part in photosynthesis and gas exchange. Collenchyma cells have an elongated shape, and also providing flexible support and thickened cell wall etc. Sclerenchyma cells provide rigid support to plant organs and help with conductivity too.
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The arrows in a food chain point from the organism ____________ the energy to the organism ___________ the energy
Answers
Answer:
1. Supplying
2. Taking
Explanation:
Food chain is a linear relationship between organisms that depicts the flow of energy from one organism to another. In a food chain, organisms are arranged in trophic levels where arrows pointing to the right direction (➡) are used to show that the organim the arrow is pointing to eats the organism behind it.
Hence, according to this question, arrows in a food chain point from the organism SUPPLYING the energy to the organism TAKING the energy.