Once, neurotransmitters are released into a synapse, an action potential is generated in the postsynaptic neuron.
What are neurotransmitters?Neurotransmitters are molecules which produce a nervous impulse when they are released into the junction of two nerves called a synapse.
Some examples of neurotransmitters are acetylcholine and dopamine.
Once, neurotransmitters are released into a synapse, an action potential is generated in the postsynaptic neuron.
Therefore, neurotransmitters are important in neuronal impulse transmission.
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Regulating hormones from the hypothalamus ________
Regulating hormones from the hypothalamus first enter into the hypophyseal portal system.
Are hormones regulated by the hypothalamus?The hormones produced by the hypothalamus and secreted by the neurohypophysis are antidiuretic hormone and oxytocin. Antidiuretic hormone promotes an increase in urine concentration, as it ensures greater reabsorption of water by the kidneys.
It is the hypothalamus that produces the antidiuretic hormone and oxytocin, which will be secreted by the neurohypophysis.
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If a wire carrying an electric current is placed in a magnetic field, a force is produced. What name is given to this effect?
Answer:
The Motor Effect
Explanation:
:)
Answer:
The Motor Effect
The process by which ____________ become activated when the ____________ within the discs of the cells are altered by light entering the eye is ____________ . The photoreceptor responds to ____________ stimulation by changing its resting membrane potential, resulting in a change in the ____________ it releases.
The process by which photoreceptors become activated when the photopigments within the discs of the cells are altered by light entering the eye is phototransduction.
How to explain the receptor?The photoreceptor responds to light stimulation by changing its resting membrane potential, resulting in a change in the neurotransmitters that it releases.
It should be noted that receptors bind to ligands and causes response in the immune system.
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X
-6
-1
0
3
y
-7
1
9
-2
What is the domain of the given function?
O {x|x = -6, -1, 0, 3}
(y ly=-7, -2, 1, 9}
{x|x=-7, -6, -2, -1, 0, 1, 3, 9}
(y ly=-7, -6, -2, -1, 0, 1, 3, 9}
1
Answer:
-1
Explanation:
(y ly=-7, -6, -2, -1, 0, 1, 3, 9}
1
A conservationists states that "we need to preserve the ocean because 95% of it is yet unexplored". why is ocean exploration important to human society? back your claim by giving three specific examples of how ocean exploration has resulted in the development of technologies that can potentially benefit human society.
Explanation:
Ocean exploration technology has advanced much more than before in the past decade.Ocean exploration can help with monitoring the deep sea.So much ocean explored by scientists begin to propel prediction of marine creatures numbers and direction of environment change, which finally keeps biological balance.Humans actively develop other ocean resources to resolve ore resources and ocean energy resources as one of benefits deep sea exploration.Which two species produce fewer offspring, each of which has a high chance of surviving to maturity?
A. Specialist species
B. Generalist species
C. R-selected species
D. K-selected species
Answer:
I think the answer is K.
Explanation:
R Species produce more offspring. Whereas K species produce fewer species due to carrying capacity.
I hope this helps! Correct me if I am wrong.
What conclusion about the bacteria domain could be made from the phylogenetic tree below?
Plants and animals evolved from the Bacteria domain.
Bacteria and Eukarya are more similar than Archaea and Eukarya.
Bacteria and Archaea have similar evolutionary traits.
Eukarya and Bacteria developed on the same evolutionary line.
The correct answer is Eukarya has similar evolutionary traits to Archaea.
Thus, option "D" is correct.
What is the six kingdom classification by Carl Woese?The six kingdom classification by Carl Woese divided the organisms into three domains which are Bacteria, Archaea, and Eukarya. the archaea and Eubacteria are micro-organisms while plants, animals, and microorganisms such as fungi and protists under Eukarya.
The Eukaryotes are more closely related to the Archaea than bacteria as:
1. Transcription - they both use same TATA-binding proteins-TFIIB and elongation factors.
2. Translation- First amino acid during protein synthesis is the same in both the organisms which is methionine.
3. Histones - same histones are involved in the packaging of DNA.
4. Sensitivity to antibiotics- both are insensitive to antibiotics.
Thus, Eukarya has similar evolutionary traits to Archaea is the correct answer, option "D" is correct.
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Transcribe the following DNA sequence into its corresponding base pair strand: 5'-ATGGCCGGTTATTAAGCA-3'?
Answer:
3' -TACCGGCCAATAATTCGT- 5'
Explanation:
A with T, G with C
Why is acetylcholine broken down?
Acetylcholine broken down is the process by which this neurotransmitter activates a suitable ligand-receptor to trigger a cell signaling pathway.
What is Acetylcholine?Acetylcholine is a chemical messenger (i.e., a neurotransmitter) that is used to transmit signals inside the body.
Acetylcholine broken down is due to its hydrolysis, which ends cell signaling between brain synapses.
In conclusion, Acetylcholine broken down is the process by which this neurotransmitter activates a suitable ligand-receptor to trigger a cell signaling pathway.
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Identify the structures of the neuromuscular junction
The structures of the neuromuscular junction are apresynaptic region; synaptic cleft and postsynaptic region.
What is the neuromuscular junction?The neuromuscular junction is where a nerve ending joins skeletal muscle tissue. Muscle contraction signals are initiated by chemicals, such as the neurotransmitter acetylcholine, that are transferred from the nerve ending, or motor end plate, to the muscle.
The importance of neuromuscular junctions is the synapse region between skeletal striated muscle fiber and motor axon; whose function is the transmission of the nerve impulse.
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Scientists group organisms into kingdoms by looking at specific characteristics. Thermus aquaticus, shown below, is a specialized bacteria called a thermophile. Thermophiles are microorganisms that can live in bodies of water that are extremely hot, such as deep sea hydrothermal vents.
A microscopic image of thermus aquaticus.
Which characteristic most likely describes a mushroom but not Thermus aquaticus?
cell wall
eukaryotic
unicellular
prokaryotic
Eukaryotic is the characteristic most likely describes a mushroom but not Thermus aquaticus because it is a is prokaryotic organism.
What are eukaryotic organisms?Eukaryotic organisms are life forms that are characterized to have cell nuclei and membrane-bound organelles.
Eukaryotic organisms can be either unicellular or multicellular (e.g. plants and animals).
In conclusion, Eukaryotic is the characteristic most likely describes a mushroom but not the bacterium Thermus aquaticus.
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Which type of scientific statement is defined as "a possible explanation or answer to a scientific question that is based on
prior knowledge or research and is testable"?
hypothesis
O theory
O law
O probability
The __________cranial fossa ranges from the posterior edge of the lesser wings of the sphenoid bone (anteriorly) to the anterior region of the petrous part of the temporal bone (posteriorly). It houses the temporal lobes of the brain and the pituitary gland.
The middle cranial fossa ranges from the posterior edge of the lesser wings of the sphenoid bone (anteriorly) to the anterior region of the petrous part of the temporal bone (posteriorly). It houses the temporal lobes of the brain and the pituitary gland.
Where is the Pituitary gland located?Pituitary gland is located within the Mid-brain. It is an endocrine gland, about the size of a pea, that sits in a small, bony cavity at the base of the brain whose secretions control the other endocrine glands and influence growth, metabolism, and maturation.
It lies in the Sella turcica of the sphenoid bone (A compound bone at the base of the skull behind the eyes)
Thus, the middle is the answer.
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. A topographic map has a fractional scale of 1:80 000. The units are in centimeters. If two cities are 3 km apart, how far apart would they be on the map?
3km to cm = 300000 cm
300000/ 80000 = 3.75 cm
they will be 3.75 cm far on the map
1 km represents 4 cm, so 3 km will be equal to 4 × 3 = 12 cm. So, they will be 12 cm apart.
What is a topographic map?Topographic maps are precise, in-depth depictions of terrain characteristics found on the surface of the Earth.
These qualities consist of: Roads, buildings, urban development, railroads, airports, place names, geographical characteristics, administrative borders, state, and international borders, and reserves are examples of cultural items lake, river, stream, marsh, and coastal flat hydrography
Relief features include mountains, valleys, cliffs, and depressions.
vegetation: vineyards, orchards, and cleared and forested landscapes.
A map's legend (or key) provides a list of the features depicted on the map together with the accompanying symbols.
A global graticule and a coordinates grid are often displayed on topographic maps so you can identify the relative and absolute locations of depicted features.
A map is only a two- or three-dimensional depiction of the actual world at a specific time, it is vital to remember this. A map will therefore never be completely accurate.
Maps often become out of date as a consequence of changes to the environment and cultural characteristics (such as roads, plants, and buildings), albeit the pace of expiration varies depending on the region.
Therefore, they will be 12 cm apart.
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why have 900 megahertz (mhz) industrial, scientific, and medical (ism) band wireless local area networks (wlan) lost favor in comparison to 2.4 gigahertz (ghz) and 5 ghz frequency systems?
900 MHz devices are more expensive and provide slower data output.
What is wireless local area networks (WLAN)?WLAN is defined as a wireless distribution of network used for two or more devices.
The industrial, scientific, and medical (ism) band is a WLAN that makes use of radio frequency
for domestic network purposes.
A gigahertz connection delivers more bits per second more than a megahertz connection.
Therefore, 900 MHz cannot be compared with 2.4 gigahertz (ghz) and 5 ghz frequency systems because 900 MHz devices are more expensive and provide slower data output.
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Which does NOT describe bacteria? one niet
A They are prokaryotic cells.
B They have cell walls and cell membranes.
C Their genetic material is found in the cytoplasm.
D They have membrane-bound organelles.
Answer:
D they have membrane bound organelles
Explanation:
Beneficial micro-organisms that are responsible for breaking down organic matter are called?.
Which characteristic is used to measure the amount of light radiated by a star?
size
color
luminosity
temperature
When your body goes into fight-or-flight mode, what happens to the oxygen that is in your brain?.
Answer:
Fight or flight
The amygdala activates this fight-or-flight response without any initiative from you. When that part of your brain senses danger, it signals your brain to pump stress hormones, preparing your body to either fight for survival or to flee to safety.
Select the correct answer. A force of 15 newtons is applied to both Object A with a mass of 25 kilograms and Object B with a mass of 50 kilograms. What is true about the acceleration of Object A and Object B? A. Acceleration of Object A is four times that of the acceleration of Object B. B. Acceleration of Object A is the same as the acceleration of Object B. C. Acceleration of Object A is half the acceleration of Object B. D. Acceleration of Object A is twice that of the acceleration of Object B.
By Newton's second law
F=ma , F=force (unit= N)
m=mass (Kg), a=acceleration (m/s2)
By applying the formula, we can calculate acceleration
a = F/ m
For object A,
Force =15N, Mass=25kg
a= 15/25
acceleration, a=0.6m/s2
For object B,
Force=15N, Mass=50 kg
a=15/50
acceleration,a=0.3m/s2
By calculation, the acceleration of object A is twice the of object B.
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Answer:
See image
Explanation:
Plato
Because one of the two strands of a replicated DNA molecule is newly synthesized and the other is the original template, DNA replication is said to be a ______ process.
Because one of the two strands of a replicated DNA molecule is newly synthesized and the other is the original template, DNA replication is said to be a semi-conservative process.
What is DNA replication?DNA replication may be defined as the biological process that involves duplicating a DNA molecule comparable to the construction of two DNA molecules.
DNA replication is proceeded by the semiconservative model, which means that the parental double helix is half conserved, and each parental single strand remains intact.
Therefore, it is well described above.
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What day is considered to be the first day of a female's reproductive cycle?
• When hormone levels are low and the uterus lining is shed.
• When hormone levels are high and the uterus lining is shed.
• When hormone levels are low and the ovary releases an egg.
• When hormone levels are high and the ovary releases an egg.
Question: What day is considered to be the first day of a female's reproductive cycle?
Answer: When hormone levels are low and the uterus lining is shed.
The first day of a female's reproductive cycle is when hormone levels are low and the ovary releases an egg. This is known as ovulation and is the most important part of a woman's menstrual cycle.
What happen during ovulation?During ovulation, the egg's follicle bursts open and is released, travelling down the fallopian tube towards the uterus.
If the egg is fertilised, it will implant in the uterus and a pregnancy will begin; if it is not, it will be reabsorbed by the body, and the cycle will restart.
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Describe the structure of amino acids, and explain how their sequence in proteins affects the proteins' shapes. What are the essential amino acids (definition and a list)
Answer:
the sequence of anemia of a protein determine eyes protein shape since the chemical properties of each animal acids are force that give rise to enter mosquicular interactions to begin to create a can be success and be stands
Explanation:
your body need 20 different kinds of animal assist to fun to formation correctly this 20 enemy as his combined in different ways to make protisanum your body your body makes hundreds of anemies but it can make 9 of animal assess you need these are called entitional and acid
During exponential growth, which of the following is true?
A) The larger a population, the slower it grows.
B) The larger a population gets, the faster it grows.
C) The size of the population has no effect on the growth of the population.
D) The population rapidly shrinks down to nothing.
Which of the following is the definition for speciation?
an inherited or learned trait that increases an organism's chance of survival in its environment
O the evolutionary process through which new species emerge
O a process by which organisms well suited to their environment tend to pass their traits onto offspring
O a process by which one of the extreme variations of a trait is favored
ANSWER:
I think it is the first one
Explanation:
Speciation is the process in which new species are created through evolution. I might be wrong though.
the evolutionary process through which new species emerge
According to the chemiosmotic hypothesis, what provides the energy that directly drives atp synthesis?.
Explanation:
According to the chemiosmotic hypothesis, ATP is produced by due to the proton gradient created across the mitochondrial membrane. The essential components required for chemiosmosis are proton pump, proton gradient and ATP synthase. ATP synthase is an enzyme which helps in ATP synthesis. The enzyme ATP synthase has two part
F0 andF1.F0 is the part which transports protons across the membrane as a transmembrane channel while configuration changes in F1
activates the enzyme. They phosphorylate ADP i.e., add one more phosphorus group to the ADP and converts ADP(adenosine diphosphate) to ATP (adenosine triphosphate). The proton gradient developed across the membrane is the driving force of ATP synthase.
. What characteristics of this Royal Pedigree fit with the expectations for an X-linked, recessive disorder?
X-linked recessive disorders are typically common in males than in females as seen in the Royal pedigree.
What are X-linked recessive disorders?X-linked recessive disorders are disorders which occur as a result of a mutation in the X chromosome.
X-linked recessive disorders are typically common in males than in females.
Females can be carriers but males are always affected when the mutation is present.
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When you are exposed to bright light, cells in the retina detect the stimulus and send it to the brain for processing. The brain commands the iris to constrict and decrease pupil size. Which structure serves as a receptor in this system
When you are exposed to bright light, cells in the retina detect the stimulus and send it to the brain for processing. The brain commands the iris to constrict and decrease pupil size.
The structure that serves as a receptor in this system is Retina
How can we see the object?Organisms adapted and evolved the eyes to see the surrounding environment. This ability to see begins when the visible wavelength of light enters the eye through a transparent covering called Cornea. The light enters the cornea and enters the inner of the eye through a round hole known as the pupil.
The light rays then enter the convex-shaped lens in the eye which focuses the beam of light on the back of the eye in the region of the tissue called the retina. The retina contains the photoreceptor cells-rods and cones in which the cone cells have the ability to detect three wavelengths of light especially blue, green and red which help us see various versions of the colour.
These cells convert light energy to chemical energy in the form of the action potential which gets transmitted to the part of the brain associated with the vision. This completes the pathway of the vision.
Thus, Retina is the answer.
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What are the most primitive surviving vertebrates?
The most primitive surviving vertebrate are those in the Agnatha class.
AgnathaThis refers to a group of fishes that are jawless. They include lampreys and hagfishes.
Fishes in the Agnathan class have no fins nor stomachs.
Hagfishes still exist with over 76 species in different cold waters around the world.
Lampreys live mostly as parasites on other fishes and are found in the Atlantic oceans.
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What organisms comprise the invertebrate chordates?
The invertebrate chordates include Tunicates and lancelets.
What are invertebrate chordates?They are a group of chordates that possess notochords somewhere in their life span but end up not possessing the vertebral column. They possess all the characteristics of chordates.
Invertebrate chordates include the Urochordata which are the Tunicates and the Cephalochordata which are the lancelets.
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