Answer:
Vesicles
Explanation:
Serotonin is a neurotransmitter that transports signals or messages between neurons.
Most neuronal cells have vesicles in their interior, which are organelles that store neurotransmitters for exportation -by exocytosis- or from recycling -by endocytosis-. These vesicles also protect the neurotransmitter from the enzymatic action.
Vesicles form in the cellular soma, from where they are transported to nervous terminals. Once the vesicle releases the neurotransmitter to the intercellular space, their membrane remains available in the plasmatic membrane to be reused.
The neurotransmitter concentration in the vesicle interior is related to the storage system and the transport system. There are specialized transporter proteins in the vesicle membrane that are involved with the introduction of the molecule to the organelle.
In the exposed example, transporter Trans B might be located in the vesicle membranes, and hence could be found in the cytosol of the cells.
If an earthworm is 18 mm long and it is photographed and the picture is magnified 2.5x how long will it be in the picture?
Answer:
length of earthworm in picture will be 45 mm. Hope this helps you.
Please help !
Which describes electrons?
Electrons move at very fast speeds around the nucleus of an atom.
Electrons are stationary outside of the nucleus of an atom.
Electrons move at very fast speeds inside the nucleus of an atom.
Electrons are stationary inside the nucleus of an atom.
phương pháp tạo vòng halo???
Answer:
lol
xplanation:
Answer:
jîâr erçvñ.
Explanation:
hñkgdà34vkffjGydlkydkeutskdeut
Which is true if energy in ecosystem
Explanation:
energy flows in only one direction through an ecosystem.
Which of the following requires constant agonist-antagonist muscle contractions?
Core integration
Postural development
Dynamic balance
Neuromuscular strength
Answer:
Postural development
Explanation:
The agonist muscles are sets of muscles responsible for causing joint motion, whereas antagonist muscles are muscles that directly opposite agonist muscles (i.e., antagonist muscles generate an opposing joint torque to the agonist muscles). In a given movement, agonist muscles exhibit concentric contractions while antagonist muscles show eccentric contractions in order to stabilize the joint. Postural development is achieved by concerted adjustments of dorsal muscles and ventral muscles. The dorsal muscles are activated when the body sways forward and the muscle fascicles shorten. During backward sway, these muscles lengthen, while ventral muscles are primarily activated.
Dynamic balance is the condition that requires constant agonist-antagonist muscle contractions.
The agonist-antagonist muscle contraction is the movement where one muscle contracts while the other muscle is relaxing or lengthening. The muscle contracts are agonist whereas the muscle that relaxes is the antagonist here.
Core integration: In such conditions, the constant movement of muscle contraction and relaxation does not require. It is a specific movement and increased stability of the movements.Postural development: continuous development and growth of postural muscles comprising the nervous systemDynamic balance: It would be the ability to balance in motion or changing positions. In this case, muscles require constant both agonist and antagonist contractionsNeuromuscular strength: motor commands according to the central nervous system to the ability to move in the nervous system, hence it does not require constant muscle movements.Thus, the correct answer is - Dynamic balance.
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Genes:
A. in plants exist only in some individuals
B. they determine the structural and functional characteristics of each individual
C. they determine only the functional characteristics of each individual
D. they determine only the characteristics structural of each individual
E. do not exist in prokaryotes
Answer:
B. They determine the structural and functional characteristics of each individual
Explanation:
Genes are present in all plants and in all prokaryotes, so answer choices A and E are incorrect. Genes are present in all living things.
Genes do determine the structural characteristics of each individual, but they also determine the functional characteristics.
Structure, which is controlled by genes, directly affects function. For example, a gene could code for a specific protein's structure, which will in turn give it a specific function.
So, the correct answer is B.
According to a famous article by Max Kleiber, the scaling of the metabolic rate or energy consumption for mammals Pmetab (measured in kcal/day) with the body mass Mb (measured in kilograms) is Pmetab=70M0.75b.
a. What is the specific metabolic rate, i.e. the metabolic rate per kilogram of body mass for the following animals?a mouse whose mass is 30g. Give your answer to three significant figures.
b. What is the specific metabolic rate, i.e. the metabolic rate per kilogram of body mass for the following animals?a cow whose mass is 300kg. Give your answer to three significant figures.
Answer:
Explanation:
Given that:
The scaling of the specific metabolic rate is:
[tex]=\dfrac{P_{metab}}{m}[/tex]
where;
[tex]P_{metab} = 70M_b^{0.75}[/tex]
[tex]=\dfrac{ 70M_b^{0.75}}{m}[/tex]
(a) For a mouse whose mass = 30 g = 0.030 kg
The specific metabolic rate [tex]=\dfrac{ 70*(0.030)^{0.75}}{(0.030)}[/tex]
= 168.197 kg
≅ 168 kg to 3 significant fig.
(a) For a cow whose mass = 300 kg
The specific metabolic rate [tex]=\dfrac{ 70*(300)^{0.75}}{(300)}[/tex]
= 16.8197 kg
≅ 16.8 kg to 3 significant fig.
Which of the following is the best definition of anaerobic respiration?
Answer:
C.
Explanation:
Anaerobic respiration is a process of cellular respiration. In this type of cellular process of respiration, oxygen is not needed to break down complex food substances such as glucose. Energy is generated in the process which is used for other cell functions.
Therefore, the answer is C.
The most common Class II variant is the F508del variant, which is missing the 508th amino acid in the protein but has an otherwise normal sequence. Loss of this amino acid leads to misfolding of the protein, and the misfolded protein is not properly transported to the membrane. Based on this information, how many nucleotides are deleted in the CFTR allele encoding this variant?
Answer:
The correct answer is - 3 (two codons of 507th that are U, C, and the first nucleotide of 508th codon U).
Explanation:
Each amino acid is coded by a three-nucleotide base long codon. So in the case of the F508del variant, there is a deletion of three nucleotides that is encoded for phenylalanine amino acid.
In this isoleucine is encoded by 507th codon that is AUG and 508th codon is UUU codes for Isoleucine.
In this case, two codons of 507th are U, C, and the first nucleotide of 508th codon U. So overall three nucleotides are deleted in the F508del variant..
Describe the normal process of osteogenesis for compact and spongy bone using the three different types of bone cells and their functions
Answer:
Osteoblasts penetrate the disintegrating cartilage and replace it with spongy bone. This forms a primary ossification center. Ossification continues from this center toward the ends of the bones. After spongy bone is formed in the diaphysis, osteoclasts break down the newly formed bone to open up the medullary cavity.
The continuity of life is based on heritable information in the form of DNA. Complete the explanation how mutations in protein-coding genes and regulatory DNA contribute to evolution. Match the terms in the left column to the appropriate blanks in the sentences on the right.
a. gene
b. silenced
c. reproduce
d. protein production
e. inherited
f. grows
g. body form
h. function
i. regulatory sequence
1. Mutations in protein-coding genes and regulatory DNA contribute to evolution if the organism carying them Survives and_____. Mutations in a____.
2. Mutations within a____may lead to major changes in______for example, ita Hox gene is attected. Moreover, if a transposable element inserts here, it may lead to a decreased or increased_____. This may impact the organism and if passed on to the offspring, become____. The result of these events may eventually lead to increased fitness and formation of new species.
Answer:
1. Mutations in protein-coding genes and regulatory DNA contribute to evolution if the organism carrying them survives and_c. reproduce. Mutations in a_a. gene lead to different effects. For example, a mutation may change the _h. function of the protein or the protein will no longer be produced.
2. Mutations within a_i. regulatory sequence may lead to major changes in_g. body form, for example, if a Hox gene is affected. Moreover, if a transposable element inserts here, it may lead to a decreased or increased_d. protein production. This may impact the organism and if passed on to the offspring, become_e. inherited. The result of these events may eventually lead to increased fitness and the formation of new species.
Explanation:
Mutations can be defined as genetic changes (nucleotide changes) in the genome sequence of an organism. Mutations can be beneficial, neutral or deleterious (depending on their effects on the adaptive fitness of the individual). Mutations that occur in the somatic (body cells) will not be inherited, whereas mutations in the germinal (gamete) cells can be passed on to the next generations. Moreover, Hox genes are major developmental regulators involved in a wide variety of aspects of animal development. In consequence, changes in the expression level of Hox genes caused, for example, through 1-mutations of their regulatory sequences, such as promoter sequences, or 2-the insertion of transposable elements, may lead to conspicuous phenotypic changes by affecting protein production. Eventually, these mutations may confer an adaptive advantage.
Toluene crosses pure lipid bilayers many hundreds of times faster than a related compound, phenylalanine. Suggest two different properties of these molecules that would account for this difference.
Answer:
The lipid bilayer is hydrophobic that is hydrophobic and it can easily cross the lipid bilayer.
Toulene is a hydrophobic and neutral molecule compound so it can easily pass through the bilayer. It is an aromatic compound with a methane group attached to the benzene ring. It is smaller in comparison to Phenylalanine.
Phenylalanine-- It is an amino acid with a benzene ring attached to it. This amino acid is less hydrophobic than the aliphatic amino acids. Because of its less hydrophobic nature, it travels slowly compared to Toluene. It is also larger and has amino and carboxyl groups attached to it. On the other hand, Phenylalanine is a polar compound which has -COOH and -NH2 group. which prevents its delay in its transport across the lipid bilayer.
I need help assay about Biopsychology can someone help me?
⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂
✍︎ The core assumption of a biopsychological approach is the fact that illness and health come as a result of a given interplay. In this case it should be known that this interplay revolves around factors like psychological, social and even biological aspects. Most notably, there is always an initiative and attempt to understand the aspect of psychopathology that is done through proper examining.
⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂⁂
꧁❁ ⁱ ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ ❁꧂
Which of the following statement(s) is/are true regarding the adrenal glands' relationship with the autonomic nervous system?
a. The adrenal cortex is an extension of the parasympathetic nervous system.
b. The adrenal medulla secretes norepinephrine when stimulated by the sympathetic nervous system.
c. The adrenal glands are strictly nerve tissue.
d. The parasympathetic division stimulates the adrenal cortex to secrete glucocorticoids.
e. The adrenal medulla is penetrated by the fibers of the sympathetic nervous system.
Answer:
The true statements regarding the adrenal glands' relationship with the autonomic nervous system are:
a. The adrenal cortex is an extension of the parasympathetic nervous system.
c. The adrenal glands are strictly nerve tissue.
d. The parasympathetic division stimulates the adrenal cortex to secrete glucocorticoids.
e. The adrenal medulla is penetrated by the fibers of the sympathetic nervous system.
Explanation:
The levels of the central nervous system which play important roles in influencing the autonomic nervous system include cerebral cortex, hypothalamus, brain stem, and spinal cord. Usually, epinephrine (adrenaline) and norepinephrine are released into the blood stem when stress or a threat occurs. This alert serves as a warning signal and defense system. The purpose is to maintain homeostasis.
Which of the following are NOT examples of data?
a.
facts
b.
figures
c.
theories
d.
measurements
Please select the best answer from the choices provided
A
B
C
D
Answer:
b
Explanation:
becusen yes
Answer:
Your answer would be C
Explanation:
Theories are not proven, they are simply ideas we come up with
How does water relate to the ability of a living thing to generate usuable energy?
Answer:
Without the proper balance of water, chemical reactions in cells could not take place.
Explanation: :)
An inflatable balloon with the volume of 0.75 L at 303 K was placed inside the freezer where the temperature is 263 K. Find out what will happen to the volume of the balloon if the pressure remains constant.
Answer:
Final volume, V2 = 0.66 Litres
Explanation:
Given the following data;
Initial volume = 0.75 L
Initial temperature = 303 K
Final temperature = 263 K
To find out what will happen to the volume of the balloon if the pressure remains constant, we would use Charles' law;
Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.
Mathematically, Charles' law is given by the formula;
[tex] VT = K[/tex]
[tex] \frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}[/tex]
Where;
V1 and V2 represents the initial and final volumes respectively.T1 and T2 represents the initial and final temperatures respectively.Making V2 as the subject formula, we have;
[tex] V_{2}= \frac{V1}{T1} * T_{2}[/tex]
[tex] V_{2}= \frac{0.75}{303} * 263 [/tex]
[tex] V_{2}= 0.0025 * 263 [/tex]
Final volume, V2 = 0.6575 ≈ 0.66 Litres
Which best explains why sawdust burns more quickly than a block of wood of equal mass under the same conditions?
The molecules move more quickly in the sawdust than in the block of wood.
The pressure of oxygen is greater on the sawdust.
More molecules in the sawdust can collide with oxygen molecules.
Oxygen is more concentrated near the sawdust than the block of wood.
Which best explains why, under the same circumstances, sawdust burns more fast than a wood block of equivalent mass The molecules in the sawdust move more swiftly than those in the
A thermal burn is what?
An injury to the skin or other organic tissue known as a burn is one that is primarily brought on by heat, radiation, radioactivity, electricity, friction, or contact with chemicals. When hot liquids, heated solids, or flames come in touch with the skin and other tissues, part or all of the skin's cells are destroyed (flame burns)
What various sorts of Burns are there?
This tiny burn merely penetrates the skin's surface layer (epidermis). It might hurt and make you red. second-degree burn Both the epithelium and the next layer of skin are affected by this kind of burn (dermis). It could result in skin that is swollen, red, white, or patchy. The pain may become intense and blisters may form. Scarring may result from second-degree burns that are deep.
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Answer:
C.More molecules in the sawdust can collide with oxygen molecules.
Explanation:
real
g Jack fell down and broke his crown. He broke the most anterior bone connected to the coronal suture. What LETTER is this, and what is the NAME of this bone
(URGENT) Which of these statements is correct about the ocean waves? (100 points)
A) Wave 1 and Wave 2 have the same wavelength.
B) Wave 2 and Wave 3 have the same wavelength.
C) Wave 1 and Wave 2 have the same amplitude.
D) Wave 2 and Wave 3 have the same amplitude
Answer:
D
Explanation:
Wave 2 and Wave 3 have the same amplitude.
The brain generally stores new information in its own different and unique netowrk but retrieves information by chunking it with information in netowkrs that contain similar characteristics or associations.
a. True
b. False
have fewer branches than astrocytes. are star-shaped cells. are branched extensions off of a neuron. are small, phagocytic cells in the central nervous system. are the supporting cells of the nervous syste
Answer:
Neuroglia - the supporting cells of the nervous system
Oligodendrocytes - fewer branches than astrocytes
Dendrites - branched extensions off of a neuron
Astrocytes - star-shaped cells
Microglia - small, phagocytic cells in the central nervous system
Explanation:
The given cells in the question are cells of different types of neuroglial cells that are astrocytes, microglia, oligodendrocytes are different types of neuroglial cells. The nervous systems are supported by this Neuroglia.
As the name indicates Astrocytes are star-shaped cells and carry many branches whereas, Dendrites are the smaller, but higher in numbers, projections of the neuron cell body. It has also axon projection bind to the cell body.
• Microglia are phagocytic cells that protects thenervous system
The Big Bang is an idea that states that billions of years ago the universe began in a huge expansion of matter. This
idea has come about through numerous experiments performed by scientists including Edwin Hubble, Albert
Einstein, and Robert Wilson, all of whom revised and added to it over time The Big Bang has not yet been proven as
fact
The Big Bang can be best described as a(n)
experiment
hypothesis
theory
law
Answer:
The Big Bang theory is the prevailing cosmological model explaining the existence of the observable universe from the earliest known periods through its subsequent large-scale evolution. The model describes how the universe expanded from an initial state of high density and temperature,and offers a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background (CMB) radiation, and large-scale structure.
Crucially, the theory is compatible with Hubble–Lemaître law—the observation that the farther away a galaxy is, the faster it is moving away from Earth. Extrapolating this cosmic expansion backwards in time using the known laws of physics, the theory describes an increasingly concentrated cosmos preceded by a singularity in which space and time lose meaning (typically named "the Big Bang singularity"). Detailed measurements of the expansion rate of the universe place the Big Bang singularity at around 13.8 billion years ago, which is thus considered the age of the universe.
After its initial expansion, an event that is by itself often called "the Big Bang", the universe cooled sufficiently to allow the formation of subatomic particles, and later atoms. Giant clouds of these primordial elements—mostly hydrogen, with some helium and lithium—later coalesced through gravity, forming early stars and galaxies, the descendants of which are visible today. Besides these primordial building materials, astronomers observe the gravitational effects of an unknown dark matter surrounding galaxies. Most of the gravitational potential in the universe seems to be in this form, and the Big Bang theory and various observations indicate that this excess gravitational potential is not created by baryonic matter, such as normal atoms. Measurements of the redshifts of supernovae indicate that the expansion of the universe is accelerating, an observation attributed to dark energy's existence.
Georges Lemaître first noted in 1927 that an expanding universe could be traced back in time to an originating single point, which he called the "primeval atom". Edwin Hubble confirmed through analysis of galactic redshifts in 1929 that galaxies are indeed drifting apart; this is important observational evidence for an expanding universe. For several decades, the scientific community was divided between supporters of the Big Bang and the rival steady-state model which both offered explanations for the observed expansion, but the steady-state model stipulated an eternal universe in contrast to the Big Bang's finite age. In 1964, the CMB was discovered, which convinced many cosmologists that the steady-state theory was falsified, since, unlike the steady-state theory, the hot Big Bang predicted a uniform background radiation throughout the universe caused by the high temperatures and densities in the distant past. A wide range of empirical evidence strongly favors the Big Bang, which is now essentially universally accepted.
Explanation:
Answer:
Explanation:
its a theory
If a white cat is cross with a black cat the offspring produced are black cat with white patches
Answer:
in f1 generation all offspring will appears in dominant character which is black and recessive will be hidden which is white
Explain why it is not advisable for two sickle cell carriers to marry.
Answer:
it results in pleiotropic effect and caused death of an offspring.
animals with scales on skin are called?
Answer:
Animals with scales on their skin are called reptiles..hope it helps
stay safe healthy and happy... The negative effects of chemical control of weeds on rangelands
Answer:
Chemical residue remain on the vegetation.
Explanation:
The negative effects of chemical control of weeds on rangelands is that the chemical residue remain on the vegetation in rangeland which is dangerous for animals that feed on vegetation because the chemicals are toxic that cause serious damaged. Sometime the chemical also damaged the weeds as well as vegetation of rangelands and also kill the beneficial insects that is needed by the plants present in rangelands.
what is the meaning of bio
Answer:
A biography, or simply bio, is a detailed description of a person's life. It involves more than just the basic facts like education, work, relationships, and death; it portrays a person's experience of these life events. ... Works in diverse media, from literature to film, form the genre known as biography.
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Based on the Punnett square, what is the probability that the offspring will have freckles?
25 percent
50 percent
75 percent
100 percent
Answer:
75%
Explanation:
Using the parents' genotypes, each inner square is filled with a possible genotype for their child. There is a 75% probability that their child will have freckles, or a 25% chance of a child with no freckles. All Weasley children have freckles and red hair.
Please Mark me brainliest
Answer:
The answer to this question is C.) 75%
Explanation:
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it is usually measured in m/s
Explanation:
The speed of light in vacuum is 299 792 458 meters per second. unit of acceleration is the meter per second per second (m/s2). unit of area is the square meter (m2).
...
Units of Length
10 millimeters (mm) = 1 centimeter (cm)
10 centimeters = 1 decimeter (dm)
10 centimeters = 100 millimeters
10 decimeters = 1 meter (m)
