An ion channel that opens when neurotransmitter binds to it is called a ligand-gated channel. Ligand-gated channel is a group of transmembrane ion channel proteins which open to allow the passage of ions such as Na+, K+ through the membrane upon activation by a specific chemical such as a neurotransmitter.
Worldwide how many people are estimated to die each year due to air pollution
Termites are insects that chew on wood. Based on a termites diet, which of the following statements would you expect to be true about its digestive system?
a.) The termite's digestive tract produces fast-acting meat-digesting enzymes.
b.) The termite has flattened molars that grind wood.
c.) The termite has a jaw bone and muscles that are adapted for side-to-side grinding movements.
d.) The termite has a symbiotic relationship with cellulose-digesting microorganisms in its digestive tract
Answer: d.) The termite has a symbiotic relationship with cellulose-digesting microorganisms in its digestive tract.
Explanation:
Termites are the wood eating parasites. They eat wood to meet their nutritional demands. Although there are enzymes present inside the termites which can partially digest the cellulose. But they exhibit a symbiotic relationship with the bacteria present in their gut. The bacteria helps in digestion of rest of the cellulose. In return the bacteria receives shelter and food.
TRUE OR FALSE IF FALSE WRITE THE CORRCT WORDS FOR THE FALSE UNDERLINED ONE TO MAKE CORRECT::::::::::::The purpose of the long hairlike projection called a flagellum on a protozoan is for sexual production. ( sexual reproduction is underlined )
your so dam dramatic.
A steady supply of _________ is needed throughout the body in order for electrons to be accepted at the end of the electron transport chain.
Answer: Oxygen
The cells use oxygen molecules during oxidative phosphorylation. Oxidative phosphorylation is the final stage of cellular respiration which is made up of two closely connected components: 1) the electron transport chain and 2)chemiosmosis.
Oxygen sits at the end of this electron transport chain, where it accepts electrons and picks up protons to form water. If oxygen is not available to accept electrons, the electron transport chain will cease running, and ATP Adenosine triphosphate) will no longer be produced by chemiosmosis. Without enough ATP, cells can’t carry out the reactions they need to function, causing death.
According to the hardy-weinberg principle, if 75% of the alleles in the gene pool are a1 and 25% are a2, what is the proportion of individuals with genotype a1a2 in this population?
According to the Hardy-Weinberg principle, the proportion of individuals with genotype a1a2 in a population can be calculated using the formula 2pq, where p is the frequency of allele a1 and q is the frequency of allele a2.
Explanation:According to the Hardy-Weinberg principle, the proportion of individuals with genotype a1a2 can be calculated using the formula 2pq, where p is the frequency of allele a1 and q is the frequency of allele a2. In this case, the frequency of a1 is 0.75 and the frequency of a2 is 0.25. Therefore, the proportion of individuals with genotype a1a2 is 2(0.75)(0.25) = 0.375, or 37.5%.
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What is likely phenotypic ratio resulting from a dihybrid cross with alleles showing epistatic interactions?
The answer is one (1) phenotype. This is because epistasis interaction of gene alleles involves the masking of one phenotype of an allele of a gene (at one or more loci) by the other. Alternatively, the epistatic alleles may interact to cause a modification of a phenotype.
Final answer:
The phenotypic ratio from a dihybrid cross which includes epistatic interactions differs from the non-epistatic 9:3:3:1 ratio, with the actual ratio depending on the specific nature of the epistatic relationship between the genes involved. One gene may mask the effects of another, altering the expected ratios of phenotypes in the offspring.
Explanation:
The phenotypic ratio resulting from a dihybrid cross with alleles that show epistatic interactions will differ from the classic 9:3:3:1 ratio seen in Mendel's dihybrid crosses with non-interacting genes. This is because epistasis is a form of gene interaction where one gene masks or modifies the expression of another. For example, if one gene's expression is completely dependent on another gene, you might see a modified ratio such as 9:3:4, where the 4 represents the epistatic effect.
In a case of epistasis similar to the one described by the figure, where one gene (C) masks the expression of another (A) for a trait like coat color, the presence of the C allele is necessary for color to be expressed. If it's absent (cc), no color is expressed regardless of the A gene's alleles. Here, the phenotypic ratio can deviate significantly from the typical 9:3:3:1 observed in a dihybrid cross without epistasis. The actual ratio will depend on the specific epistatic relationship between the genes involved.
It's important to remember that the independent assortment of genes and Mendelian inheritance can be altered by various genetic interactions, including epistasis, which must be taken into account when predicting phenotypic ratios in genetics problems.
Meiosis produces..?
A.) gametes
B.) somatic cells
C.) body cells
D.) mitotic cells
Which term do geographers use to classify an area with unifying physical characteristics?
A physical Region is the term used by geographer to classify an area with unifying characteristics. Regions are areas that are extensively characterized by physical features, human influence and relationship between humanity and the environment. An example of a physical region is the Rocky Mountain in the west.
Answer:
physical region/region
Explanation:
The fluid-like substance contained within the cell membrane, the nucleus not included, is _____. cytoplasm dna rna tissue brainly
Answer:
Cytoplasm is the correct answer
Explanation:
A thick fluid or solution enclosed by cell membrane that fills a cell is called Cytoplasm. Cytoplasm help a cell to maintain it shape. It is composed of water, salts and protein mainly. All cell organelles are found in the cytoplasm, it is highly organized.
Substances like enzyme found in the cytoplasm, help breaking down waste and also helps in metabolic activity.
Which statement explains the difference between a nerve that is connected to the skin and a nerve that is connected to a muscle? The nerve that is connected to skin is a motor neuron; the nerve that is connected to a muscle is a sensory neuron. The nerve that is connected to skin receives stimuli information from the external environment; the nerve that is connected to a muscle receives processed stimuli information from the brain. The nerve that is connected to skin is part of the central nervous system; the nerve that is connected to a muscle is part of the peripheral nervous system. The nerve that is connected to skin helps the body maintain homeostasis; the nerve that is connected to a muscle supports the body so it can stand upright.
Answer:
Behavior that does not involve the "higher" centers of an animal's brain.
Which is visible evidence of energy passing through water?
a sea arch
a density tide
a wave
the Coriolis effect
The correct answer is option C, A wave
Reason -
Waves in water bodies are produced by the entrapped solar energy as of due to the wind blowing across the surface of a water body. These waves are used as a renewable source of energy. The water particles vibrate to transfer the energy in the form of wave which generally move in the forward direction.
A plant lacking a mineral or failing to make a needed vitamin dies before it can bear food for human consumption.
a. True
b. False
When can confidentiality be breached in health and social care?
what is cytokinesis
why do two-dimensional maps of earth have distortions? A. Earth is three-dimensional, but maps are two-dimensional B. cartography is an inexact science C. cardinal directions do not apply to two-dimensional maps D. They do not include lines of longitude
Answer: Option (A)
Explanation: It is because we cannot represent a three-dimensional object in a two-dimensional maps, without distortion. So in order to reduce this distortion various types of projections are being used such as Mercator projection, Interrupted map projection and Azimuthal projection that helps us in reducing distortion and transform a 3-D object to 2-D.
An ecosystem is effected by many factors. Oxygen, soil, water, amount of sunlight, and temperature are some examples. What type of factor are these examples?
Body tissue that is connected to and moves the bones in the body tendon 2. the ability of a muscle to move a weight repeatedly, or for an extended period of time muscle endurance 3. the increase in the size of a muscle fiber in response to resistance training atrophy 4. the most amount of weight a muscle can move at a single time hypertrophy 5. the decrease in the size and strength of a skeletal muscle when it is not used skeletal muscles 6. strong body tissue that connects the muscles to the bones muscle strength
Blood rich in oxygen and nutrients are transported from the placenta to the fetus by the
What is the equation with which you can calculate population density?
When plants make "food" by photosynthesis, they change the energy in sunlight to?
Plants change sunlight into chemical energy through photosynthesis, creating glucose and oxygen from water and carbon dioxide.
When plants make "food" through photosynthesis, they change the energy in sunlight into chemical energy. This fascinating process involves plants taking solar energy and using it to combine water (H₂O) and carbon dioxide (CO₂) to create glucose (C₆H₁₂O₆), which is a carbohydrate, and oxygen (O₂). The light energy harnessed from the sun is transformed into chemical potential energy stored in the glucose molecules. Autotrophs, like plants, capture a specific wavelength of sunlight through chlorophyll and use it during photosynthesis to build these carbohydrate molecules. The glucose produced can then be used by the plant for its growth and development or stored for later use, supporting the energy needs of the plant itself and herbivores that consume the plant matter.
Which structure of a paramecium holds a "reserve copy" of all the cell's genes?
In a Paramecium, the micronucleus holds a 'reserve copy' of all the cell's genes and is essential for sexual reproduction, as well as the formation of a new macronucleus.
In a Paramecium, the structure that holds a "reserve copy" of all the cell's genes is the micronucleus. While the macronucleus manages most of the biological functions such as asexual binary fission, the micronucleus is critical for sexual reproduction and serves as a genetic reservoir. During the sexual reproduction process known as conjugation, the micronucleus undergoes meiosis and subsequent exchange of genetic material with another Paramecium, ensuring genetic diversity. Following conjugation, the micronucleus gives rise to a new macronucleus, thus supporting cellular rejuvenation and ensuring a continuity of the genetic blueprint.
What is the major gas that increase the greenhouse effect?
Describe the outer covering of a reptile's egg.
The outer covering of a reptiles egg is hard to protect it from harm while growing. :P
I hope this helped :D
In what part of the female reproductive tract does fertilization typically occur?
Cleaner fish feed off the algae fungi and other microorganisms that are found in larger fish. Other species of fish which look like cleaners are able to approach the larger fish and remove large bites of flesh. If the look alike population outnumber the cleaner fish the A.microorganisms on large fish would decrease B.cleaners and mimics would interbreed C.behavior of large fish would change D.cleaner population would increase
Answer:
C.behavior of large fish would change
Explanation:
thats what jlab says the answer is
Balthazar's depression is being treated through a procedure in which electrodes are placed on both sides of his head and a brief current is turned on. the current triggers a seizure that lasts about a minute, causing his body to convulse. his treatment is known as:
This treatment is known as electroconvulsive therapy (ECT)
Electroconvulsive therapy (ECT) is a procedure, in which small electric currents are passed through the brain, with the intention of triggering a brief seizure to provide relief from mental disorders. ECT may not work for everyone and it is frequently used when other treatments are unsuccessful. ECT is used to treat severe depression, catatonia and agitation and aggression in people with dementia .
why will a radioactive rock never become completely stable?
Excess of neutrons and protons cause large amount of energy in the nucleus, which cause the instability of the radioactive rock.
What is a radioactive rock?
Radioactive rock consist of atoms of radioisotopes like thorium and uranium.
Excess neutrons or protons in an element's atoms provide extra energy in the nucleus.
That cause the atom to become imbalanced or unstable.
Whether and how radioactive elements can also become stable.
Radiation is emitted by the unstable nuclei of radioactive atoms.
Thus, the because of the nucleus, of the radioactive rock never become completely stable.
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Which mechanism restricts the expression of leptin to adipocytes?
Help me please!
Darwin hypothesized that there are definite steps to natural selection. Consider the model of bacterial resistance to antibiotics. How would Darwin explain step I?
Question 1 options:
Bacteria adapt to environmental changes.
Some bacteria alter their DNA in response to environmental changes.
In any population, some individuals are weaker than others.
In any population, genetic variation exists.
A particular species of unicellular organism inhabits the intestines of termites, where the unicellular organisms are protected from predators. wood that is ingested by the termites is digested by the unicellular organisms, forming food for the termites. the relationship between these two species can be described as
Mutualism
Mutualism is a relationship between organisms of two different species in which each benefits. From the question given above, the relationship between the termites and the unicellular organism can be described as mutualism because both organisms benefit from each other.
The relationship between the termites and the unicellular organisms in their intestines is an example of mutualism, a type of symbiotic relationship where both organisms benefit. The protists help digest cellulose from the termite's wood diet, providing nourishment for both organisms.
Explanation:The relationship between the termites and the unicellular organisms in their intestines is an example of mutualism. In this symbiotic relationship, both organisms benefit. The unicellular organism known as protists, which survives in the termite's gut, assist the termites in breaking down the ingested cellulose from their wood-based diet into a digestible form that provides nourishment for both the termite and the protists.
This process represents a mutualistic relation because while the protists are obtaining a safe habitat and a constant supply of food from the termite, they are also essential in processing cellulose from the wood, aiding the termite in deriving essential nutrients. Without this digestive assistance by the protists, the termite cannot obtain energy from its food.
Furthermore, the protists themselves are able to digest cellulose due to the presence of symbiotic bacteria within their cells that produce the cellulase enzyme. This results in a complex mutualistic interaction where both the termite and the protists (and the bacteria within the protists) derive strategic survival advantages from each other.
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