Skeletal muscle fibers require neurotransmitter from neurons in order to be activated. Neurons must enter the endomysium structure to activate the myofiber.
How do neurons work? What are they made of?Neurons are the fundamental constituents of the nerves also known as neurones or nerve cells. The cells known as neurons are responsible for receiving sensory data from the world, sending commands to our muscles, and converting and relaying electrical signals at various points along the road.
Neurons are brain cells, right?The two most common forms of neurons are synapses and glia, a non-neuronal cell type. There are 1 trillion cells and at nearly that many glia in the normal adult human brain. Glial cells are just as important for normal cognitive function as neuron, despite the latter being the most well-known type of brain cell.
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what is the best way to describe the limits of science
Explanation:
Science has its limitations. Science can save lives, but it cannot force a person to live one according to a certain principle. While plenty of scientists use scientific findings to help guide their morals and ethics, science is still just a tool. It is up to the individual to use or ignore its findings. Science doesn't tell you what is right or wrong. Thus, science does not create moral or ethical rules, laws, or judgements. It is people who do this, sometimes with information gleaned from science but nothing more.
During osmosis, the semi-permeable membrane is one that:
A. does not allow any particles to pass through.
B. allows only very small particles or water through.
C. allows only very large particles through.
D. decides what particles to let through based on cell signals.
Answer:
B, allows only very small particles or water through
Explanation:
During osmosis, only molecules of solvent can pass through the semi permeable membrane and passes through very slowly from experiments done.
Which order of events is correct?
mitosis → celldifferentiation → stemcells
zygote → celldifferentiation → mitosis
zygote → stemcells → celldifferentiation
stemcells → zygote → celldifferentiation
i think 2
Explanation:
Which of the following responses correctly lists the order of events in a generalized viral replicative cycle?
A) the virus enters the cell, enzymes transcribe the viral genome into mRNA, host enzymes replicate the viral genome
B) enzymes transcribe the viral genome into mRNA, the virus enters the cell, host enzymes replicate the viral genome
C) host enzymes replicate the viral genome, enzymes transcribe the viral genome into mRNA, the virus enters the cell
D) the virus enters the cell, host enzymes replicate the viral genome, enzymes transcribe the viral genome into mRNA
The correct order of events that happens during the generalized viral replicative cycle is the virus enters the cell, enzymes transcribe the viral genome into mRNA, host enzymes replicate the viral genome. Thus, the correct option is A.
What is generalized viral replicative cycle?Viruses does not have the machinery to replicate themselves hence, they require host for replication and division. There are two processes which are used by the viruses to replicate inside the host cell: the lytic cycle and lysogenic cycle. Some viruses can reproduce using the both methods, while others can only use the lytic cycle to reproduce. In the lytic cycle, virus attaches to the host cell and injects its DNA into the host DNA.
The virus replicative cycle could be divided into six steps which include: first, the attachment of virus into the cell, the virus penetrates host cell, uncoating, followed by the transcription of the mRNA of the viral genome i.e., gene expression and then host enzymes replicate the viral genome, assemble, and release the content.
Therefore, the correct option is A.
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what biogas generator tend to work best in hot countries
Over 70 million tons of organic waste are produced annually in the US. After organic matter is broken down by bacteria in an oxygen-free environment, biogas is created.
What is biogas used for?After being captured, methane can be used to power fuel cells, microturbines, and engines to create heat and electricity. In contrast, biogas can be converted into biomethane, also known as biogas (RNG), and utilized as a fuel for vehicles or fed into natural gas pipelines.
Where can I find biogas?Landfill gas is a natural gas produced by microbial bacteria in landfills for municipal solid waste. Because methane is combustible, landfill gas with such a high methane produced may be hazardous both to and the environment. Another potent greenhouse gas is methane.
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Which of these is believed to be a cognitive process? A. Sociocultural Theory B. Social Learning C. Theory of Psychosocial Development D. Attachment Theory
Perceptions are a cognitive process because we often consciously and unconsciously interpret information gained through our perceptions, forming thoughts, opinions and emotional reactions. For instance, the smell of a particular flower may remind you of a specific person and bring back a pleasant memory.
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Many chemical preservatives, such as potassium sorbate, preserve food products in which of the following ways? by drying foods.
by altering pH
by changing osmolarity
by binding to pathogens
why it is advantageous for population to occupy different habitats
According to the research, the correct answer is that it helps to acquire divergent and adaptive evolutionary changes. It is advantageous for population to occupy different habitats since they live in different ecological environments which allows them to have divergent evolutionary changes and better adaptation.
What is a population?It is the set of organisms that is formed by a group of specimens of the same certain species that share a habitat.
In this sense, when these organisms of the same species occupy different habitats, it allows the development of new types of species that can survive with environmental variations and adapt to environmental conditions in a different way than the rest, generating divergent evolution.
Therefore, we can conclude that according to the research, a population is a set of individuals of the same species that when occupying different habitats adapt to a process of divergent evolution.
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Both muscle and sperm cells are specialised animal cells.
(a) The nucleus of a muscle cell is different from the nucleus of a sperm cell.
Outline one way in which the nucleus is different between these two cells.
[1 mark]
Question 1b
(b)
All specialised cells are adapted to carry out their function.
Describe two adaptations of a sperm cell that enables it to carry out its function.
[4 marks]
Question 1c
(c)
Specialised cells develop from unspecialised cells by differentiation when an organism develops.
What happens when a cell differentiates?
The nucleus of a muscle cell is different from the nucleus of a sperm cell due to the differential expression of genes in muscle cells (question a). Adaptations of a sperm cell that enable it to carry out its functions include the presence of microtubules for motion and an elongated shape to perform locomotion (question b). Specialized cells develop from unspecialized cells by differentiation when an organism develops by gene expression patterns that encode specific proteins (question c).
What is the process of cell differentiation?The process of cell differentiation refers to the expression of specific genes in an undifferentiated cell in order to generate certain structures or synthesize enzymes that allow them to perform specific functions.
For example, sperm cells are adapted to perform locomotion during the process of fecundation, for which they have specialized microtubules to perform this function, which are proteins generated through the expression of specific genes.
Therefore, with this data, we can see that the process of cell differentiation is associated with gene expression and it is due to the adaptation of cells to perform certain tasks.
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John has recently been diagnosed with high blood pressure. He also shares many family members
struggle with high blood pressure and he now realizes he needs to change his diet and reduce his
consumption of fast foods and other foods with high sodium content in order to improve his
health. Unfortunately he has not yet developed a plan or made any steps towards the changes he
desires. He is struggling to identify how he can really do this given his busy, work and school
scheduled. What Stage of Change is he in?
Answer:
preparation
Explanation:
please mark brainliest...
Answer: hello THIS IS THE ANSWER :)
Explanation:
It provides information that helps Americans make healthy choices for themselves and their families and discusses evidence-based, community-level interventions, In other words, if your mental health is poor, you may be at greater risk for ... Eating foods with less sodium can reduce your risk of high blood pressure.
After the oil spill, marine microbes consumed the oil under the surface but also removed ________ from the water, killing both plants and animals and creating dead zones.
After the oil spill, marine microbes consumed the oil under the surface but also removed Oxygen from the water, killing both plants and animals and creating dead zones.
What causes oil to form?Organic material, primarily sedimentary deposits on the seafloor, is what turns into oil and gas over the course of millions of years as it decomposes and changes. Recoverable oil and gas deposits may be found where source, reservoir, cap, and trap rocks are present in the right proportions.
Most oil formation occurred when?Between 10 (Cenozoic) and 180 (Mesozoic) million years ago, the majority of natural gas and oil creation took place. Only 10% of oil reserves are Paleozoic (more than 200 million years ago).
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5. Divide the following signed numbers:
please help will give extra
a.
-8
-2
b.
+9
-1
c.
-12
-48
Answer:
-8-2=-10
+9-1=8
-12-48=-60
Explanation:
After the oil spill, marine microbes consumed the oil under the surface but also removed ________ from the water, killing both plants and animals and creating dead zones.
Microbes consume the oil under the surface but also remove oxygen.
How microbes clean oil spill?Bacteria can break down oil into carbon dioxide and water. However, no single organism can degrade all the components of crude oil and refined fuels that enter the environment. The tens of thousands of different compounds that make up petroleum can only be biodegraded by groups of microorganisms acting in concert.
Pseudomonas putida, also known as oil eater, is a Gram-negative, rod-shaped saprophytic bacterium patented by Ananda Mohan Chakravarti for the bacterium's ability to biodegrade oil.
Many genera of plants, microorganisms and fungi exhibit oil-cleansing properties. Such as Spartina, Haloscarcia, Rhizophora, Nocardioides, Dietzia, and Microbacterium.
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What’s the correct answer answer asap for brainlist and it better be right
Answer:
its c
Explanation:
The allele frequency represents the incidence of a gene variant in a population.
I know this is right. My father is a retired radiologist and he explained it to me in a little bit too much depth. but if it is wrong I apologize and I will gladly slap my dad.
The variety of organisms within an ecosystem is characteristic of which type of diversity?.
The variety of organisms within an ecosystem is characteristic of species diversity. Species diversity is the variety of different species that are present in an ecosystem.
Species diversity is the variety of life on earth. It is the number of different species of plants, animals, and other organisms that live in a particular area. The higher the diversity, the more different types of life there are.
Species diversity is important for the health of ecosystems. It helps to provide stability and resilience against environmental changes. It also helps to provide food and other resources for the animals and plants that live there.
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NEED HELP ASAP WILL MARK. BRAINLIEST
The following graph was constructed using data collected while growing E. coli on a large petri dish with unlimited food and after optimal temperature of 37 Celsius
Answer: See Below
Explanation:
1. E. coli growth is a logarithmic curve. It is characterized by a sudden increase in population. This is the point at which the cells are healthiest. The curve then tapers off due to limited amounts of space and food supply.
2. See Attached photo, death phase would occur. Limited nutrients will cause the cells to die off as it is used up.
3. In a larger container the growth curve and shape would remain the same however there would be an overall increase in the number of cells.
4. The bacteria would likely grow very quickly to fill the surrounding space and then growth would slow but be consistently upwards at a constant rate.
25. Segregation refers to the separation of
a. linked genes from each other b. homologous chromosome pairs
c. dominant genes from the rest of the chromosome d. cells
Segregation refers to the separation of:
b. homologous chromosome pairs
PLEASE HELP
If it takes a student 5 minutes to "cut up or digest" the small portion of cellulose shown, how long would it take to digest the entire cellulose molecule that is 100 times longer?
If it takes a student 5 minutes to "cut up or digest" the small portion of cellulose shown, it takes long hours to get digested the entire cellulose molecules that is 100 times longer.
Which bacteria helps cellulose to get digested?The symbiotic bacteria acts on the cellulose and secrets the necessary enzymes (cellulase) to digest cellulose in the intestinal tract. The main fact is that no animal has the ability or the capacity to digest cellulose directly.
Most animals such as horses and termites cannot directly digest cellulose. The animals have a symbiotic relationship with bacteria in the intestinal tract.An example of such microorganism in a symbiotic relationship with animals that facilitates the digestion of cellulose is Trichonympha.
Therefore, If it takes a student 5 minutes to "cut up or digest" the small portion of cellulose shown, it takes long hours to get digested the entire cellulose molecules that is 100 times longer.
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which processes produce different proteins in different cells from the same primary transcript? select all that apply.
Two processes that produce different proteins in different cells from the same primary transcript are RNA editing and alternative RNA splicing. These two change the protein in different cells, although all the cells have the same gene.
What is RNA modification?The gene makes the mRNA, but the primary mRNA of eukaryotes is immature because the mRNA has both the intron and the exon regions. The introns are removed by the process of splicing, but in alternate splicing, the exons change positions. This is the result of the alternation of the traits that are found in the cells.
Hence, both RNA editing and alternative RNA splicing produce different proteins in different cells from the same primary transcript.
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The question is incomplete. The complete question is follow
Which of the following processes produce different proteins in different cells from the same primary transcript? (Select all that apply.)
a)alternative splicing
b)chromatin remodeling
c)RNA editing
d)combinatorial control
e)histone modification
What are the three factors affecting bone growth and development?
Nutrition, vitamins, milk
Physical exercise, nutrition, hormones
Hormones, fat storage, physical exercise
Vitamin D, Calcium, phosphorus
Answer:
Major hormones influencing bone growth and morphology include growth hormone (GH), androgens such as testosterone and dihydrotestosterone, and estrogens such as estradiol.
so i think it would be D) sorry if its wrong tho
Estuaries are productive ecosystems because they constantly receive nutrients from.
Estuaries are productive ecosystems because they constantly receive nutrients from the river and from the ocean and both bodies of water.
Estuaries are incredibly productive ecosystems despite these obstacles. They may support a variety of life and receive nutrients from both pools of water. People frequently reside close to estuaries, which has an effect on the ecology because of their access to food, water, and shipping routes.
Water bodies called estuaries and the marshes that surround them are typically found where rivers and the sea converge. Unique plant and animal communities that have adapted to brackish water, which is a mixture of freshwater that drains from the land and salty ocean, can be found in estuaries.
There are, however, a few totally freshwater habitat types that share many traits with the conventional brackish estuaries.
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1. The property of muscle tissue that allows an impulse to travel down the entire length of the cell membrane is
Multiple Choice
elasticity.
conductivity.
extensibility.
contractility.
Responsibility
The property of muscle tissue that allows an impulse to travel down the entire length of the cell membrane is Elasticity.
What is Muscle elasticity ?Stretching a muscle to its complete range of motion without being constrained is possible thanks to tissue elasticity. The body has a variety of tissues, such as connective tissues and soft tissues. Tissues frequently become constricted and inelastic, increasing muscle tension and pain.
Muscle tissue is made up of cells with the unique capacity to constrict or shorten in order to cause movement of the bodily components. High levels of cells and blood vessels can be found throughout the tissue.
Therefore, The property of muscle tissue that allows an impulse to travel down the entire length of the cell membrane is Elasticity
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4. The DNA that makes up the genomes of most eukaryotic organisms is divided into multiple, linear chromosomes.
a. Why would the division of a cell with multiple chromosomes be more difficult than the division of the bacterial cell shown in Figure 1, which has a single, circular chromosome?
The division of a cell with multiple chromosomes is more difficult than the division of a bacterial cell that has a single circular chromosome because multiple because eukaryotic cell division involves regulating DNA replication at different points, which requires the presence of different cyclin factors that trigger DNA replication during the S phase.
What is the synthesis S phase of DNA replication?The synthesis S phase of DNA replication is the period in the cell cycle where DNA replication occurs, which is a more complex process in eukaryotic cells because they have many chromosomes to regulate during this phenomenon, in contrast to the single chromosome of prokaryotic cells.
Therefore, with this data, we can see that the synthesis S phase of DNA replication involves a more complex process in eukaryotic cells due to the presence of different chromosomes to be controlled through cyclins and kinase factors during this process.
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What should be done about lion-
fish ownership in hyme & Commercial/
education aquariums?
Lionfish co-promotes the eradication of invasive and invasive lionfish through lionfish hunter education outreach and direct hunting campaigns.
Invasive lionfish are a threat to native fish and the environment in the Atlantic waters of the United States. Invasive species can lead to the extinction of native flora and fauna, reduce biodiversity, compete with native species for limited resources, and alter habitats.
Participating in the Lionfish Derby helps reduce populations in certain areas and dive sites. Ordering something like a lionfish on your menu when you go out for lunch or dinner can also be very helpful as it creates an incentive and economic reason for more divers to catch more of this particular species. Lionfish colonies are edible and considered a delicacy so control methods should include harvesting lionfish colonies.
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Use the following table to answer the question:
Codons Found in Messenger RNA
Second Base
First Base U C A G Third Base
U Phe
Phe
Leu
Leu Ser
Ser
Ser
Ser Tyr
Tyr
Stop
Stop Cys
Cys
Stop
Trp U
C
A
G
C Leu
Leu
Leu
Leu Pro
Pro
Pro
Pro His
His
Gln
Gln Arg
Arg
Arg
Arg U
C
A
G
A Ile
Ile
Ile
Met Thr
Thr
Thr
Thr Asn
Asn
Lys
Lys Ser
Ser
Arg
Arg U
C
A
G
G Val
Val
Val
Val Ala
Ala
Ala
Ala Asp
Asp
Glu
Glu Gly
Gly
Gly
Gly U
C
A
G
This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Phe-Ser-Gln?
UUC-UCU-CAA
AAG-AGA-GTT
TTC-TCT-CAA
AAG-AGA-GUU
Option A. UUC - UCU - CAA sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Phe-Ser-Gln.
Nucleotides are natural molecules together with a nucleoside and a phosphate. They function as monomeric units of the nucleic acid polymers deoxyribonucleic acid and ribonucleic acid, both of which might be vital biomolecules within all existing forms on the planet.
A nucleotide is the primary building block of nucleic acids (RNA and DNA). A nucleotide includes a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate institution and a nitrogen-containing base. The bases utilized in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T).
A nucleotide is an organic molecule with a primary component of a nitrogenous base, pentose sugar, and phosphate. DNA and RNA are polynucleotides, which contain a chain of nucleotide monomers with extraordinary nitrogenous bases. Nucleotides are important for carrying out metabolic and physiological sports.
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Please help with this question
Answer: homozygous dominant, heterozygous and homozygous recessive
Explanation: RR is homozygous dominant, 2Rr are heterozygous and rr is homozyqous recessive
Flagella are found in______and used for_____.
A. plants, transfer of genetic material
B. fungi, locomotion
C. prokaryotes, transfer of genetic material
D. prokaryotes, locomotion
Answer: D. prokaryotes, locomotion
Explanation:
Flagella are organelles used by bacteria (prokaryotes) as a means of movement (motility)
7. Which of these is NOT a characteristic of happy people?
a. Happy people are optimistic
b. Happy people give more
c. Happy people have high self-esteem
d.Happy people like to be around other happy people
Happy people have high self-esteem is NOT a characteristic of happy people.
What is happy people?
Strong, meaningful relationships are formed as a result of these ties, which serve as a barrier against depression. In the past 50 to 75 years, depression rates have drastically grown.
According to the World Health Organization, depression will affect almost one-third of all adults worldwide and be the second biggest cause of mortality by the year 2020.
Although there are probably many factors causing this increase, one of the most significant ones might be the disconnect between individuals and their families, communities, and themselves.
Therefore, Happy people have high self-esteem is NOT a characteristic of happy people.
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Which of these are the
REACTANTS involved in the
photosynthesis equation?
A: glucose and oxygen
B: carbon dioxide and water
Answer:
B
Explanation:
carbon dioxide + water ---> glucose + oxygen
When biological membranes are frozen and then fractured, they tend to break along the middle of the bilayer. The best explanation for this is that _____.
The hydrophobic interactions that hold the membrane together are weakest at this point.
What are biological membranes?A bilayer of lipid molecules makes up the double sheet that makes up biological membranes. Generally speaking, this structure is known as the phospholipid bilayer. Membrane proteins and sugars are important structural elements of biological membranes, in addition to the many lipid types that are present in them.
The biological membrane, also known as the cell membrane is a membrane that selectively permits passage through and isolates the cell from its surroundings.
Before the development of the microscope in the seventeenth century, cell membranes were unknown. Scientists learned that organisms are made up of cells through microscopic investigations, but the existence of a biological membrane was still unaccounted for around 200 years passed.
The phospholipid bilayer is composed of a two-layered structure of phosphate and lipid molecules. In this cell membrane, the hydrophobic lipid ends are facing inward, whereas the hydrophilic phosphate ends are facing outward. As the hydrophobic interactions are weakest along the middle, freezing temperatures will cause them to break here.
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