Answer:
Un impulso nervioso comienza cuando una neurona recibe un estímulo químico. El impulso nervioso viaja a través de la membrana del axón como un potencial de acción eléctrico hasta el terminal de axón. El terminal de axón libera neurotransmisores que llevan el impulso nervioso a la siguiente célula
Explanation:
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At school we are taught that there is a dominant gene for brown eyes and a recessive one for blue.
In this sentence, dominant means:
A. having undergone mutation
B. of or relating to single-cell organisms
C. having reached full development, growth, or
maturity
D. producing a trait even when inherited from only
one parent
Answer:
D. Producing a trait even when inherited from only one parent
Explanation:
A dominant gene, or a dominant version of a gene, is a particular variant of a gene, which for a variety of reasons, expresses itself more strongly all by itself than any other version of the gene which the person is carrying, and, in this case, the recessive.
If a sexually reproducing organism has 28 chromosomes in it body cells, how many chromosome did it inherit from each parent?
A. 7
B. 14
C. 16
D.28
What are the differences and similarities between elements, atoms, molecules, and compounds?
Atoms are the thing that make up molecules and compounds. Molecules contain two or more atoms and are held together by covalent bonds, whereas compounds are held together by ionic bonds. ... The atoms within a compound also must be different from eachother, whereas a molecule can consist of only one element.
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Describe how the diaphragm and the rib cage and lungs move during inhalation and
exhalation.
this is science pls help
Answer:
During inhalation, the diaphragm contracts and pulls downwards, the ribcage expands, allowing oxygen to be sucked in through negative pressure, which causes the lungs to inflate.
During exhalation, the diaphragm and ribcage relax, returning to their normal positions, allowing the oxygen out of the body, thus deflating the lungs.
Which statement describes the process of osmosis in an animal cell
Answer: B.
Explanation:
The statement that describes the process of osmosis in an animal cell is water molecules move across the plasma membrane until solute concentration are equal on both sides of the membrane.
OSMOSIS:Osmosis is the process by which water molecules move from a region of higher concentration to a region of lower concentration through a semipermeable membrane.
According to this question, which is describing the structure of the cell membrane as a semipermeable membrane. The cell membrane selectively allows the passage of certain molecules.
Osmosis will occur in this animal cell when water molecules move across the plasma membrane until solute concentration are equal on both sides of the membrane.
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This is a fill in the blank question. Please Help!!
Solid waste is disposed through the __
a. Rectum
b. Liver
c. Anus
(P.S this is a Science question for 13 points!!)
Answer:
i believe the answer is c.
i cant understand this huh
Answer:
Ciliated epithelium
When the columnar or cuboidal cells bear cilia on their free surface they are called ciliated epithelium. Their function is to move particles or mucus in a specific direction over the epithelium organs like bronchioles and fallopian tubules.
A student unpacks his lunch and spreads out the potato chips on the brown paper lunch bag. Within minutes the student notices translucent spots on the lunch bag.
The translucent spots on the lunch bag indicate the potato chips contain which organic molecule?
carbohydrates
proteins
lipids
nucleic acids
The biological theory of aging known as the _______ theory suggests that cells can divide a maximum number of about 75 to 80 times and that cells become less capable of dividing as people age.
Answer:
cellular clock theory
Explanation:
Good luck & Have an amazing day :)
what species accepts electrons in the final step of the electron transport chain?
Answer:
Oxygen
Explanation:
Because it’s oxygen I don’t know ♀️
Why would Humans would not be able to repair and grow your muscles without bacteria
Answer: the genes of those microbes are more responsible for human survival than the genes of our own human body! Not all of the bacteria in our bodies are bad. Just as we cannot live without air and water, we cannot live without our microbes. So, the cells that make our muscles function are not even our own body cells!
PLEASE HELP!
A. What kind of weather is associated with a low-pressure area?
B. What happens to the air of the low pressure areas that leads to this type of weather?
Answer:
A.) Low-pressure systems are usually associated with clouds and precipitation that minimize temperature changes throughout the day
B.) The slightly inward moving air in low pressure causes air to converge and since it can’t move downward because of the surface, the air is forced upward, leading to condensation and precipitation
Explanation:
Chromosome number is reduced from 2n to 1n. this occurs in ___________
anaphase l
telophase l
anaphase ll
telophase ll
Answer:
I'm not completely sure but I think anaphase 2
why is the digestive tract of the frog well vascularized
The digestive tract of the frog is well vascularized because it aids in the absorption of nutrients.
The digestive tract of a frog is a hollow long tube that extends from the mouth to the anus which helps in the ingestion and digestion of food.
The digestive tract of frog has the following characteristics:
alimentary canal of the frog is not long, that is, it is short. It has accessory organs of digestion such as liver, gall bladder and pancreas.All the digested food substances are absorbed at the small intestine due to the presence of microvilli.
This microvilli is made up of a central core that is vascularized, that is, it contains artery, vein and lymphatic capillary.
Therefore, the vascularized microvilli of the small intestine of frog help in the absorption of nutrients.
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i need help with this
Answer:
C. cell wall
Explanation:
The cell wall is the structure that would normally be found in a plant cell but not in animal cell. The plant cells get collapsed due to the environmental pressure, not in the case of animal cell.
When heat is supplied to one end of a long metal rod, then which spreads at once in the entire rod. It is true? If not, justify your answer.
It is true that when heat is supplied to one end of a long metal rod, then which spreads at once in the entire rod.
What is conduction?Conduction is the transfer of heat energy through collisions between neighboring atoms or molecules.
Conduction occurs more easily in solids and liquids because the particles are closer together than in gases because the particles are farther apart.
Good conductors are materials that allow electricity to easily pass through them. Bad conductors are materials that do not allow electricity to easily pass through them.
Most metals are thought to be good electrical current conductors. Copper is just one of the more common materials used in conductors. Silver, gold, and aluminum are other materials that are occasionally used as conductors.
Thus, the given statement is true.
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Write a hypostasis based on observations on identifying unknown materials and scientific principals.
Answer:
Until the past decade, scientists, research institutions, and government agencies relied solely on a system of self-regulation based on shared ethical principles and generally accepted research practices to ensure integrity in the research process. Among the very basic principles that guide scientists, as well as many other scholars, are those expressed as respect for the integrity of knowledge, collegiality, honesty, objectivity, and openness. These principles are at work in the fundamental elements of the scientific method, such as formulating a hypothesis, designing an experiment to test the hypothesis, and collecting and interpreting data. In addition, more particular principles characteristic of specific scientific disciplines influence the methods of observation; the acquisition, storage, management, and sharing of data; the communication of scientific knowledge and information; and the training of younger scientists.1 How these principles are applied varies considerably among the several scientific disciplines, different research organizations, and individual investigators.
If Adam and Eve were the only people on earth first ,then does that mean every one is like your 5,000th cousin?
Answer:been isolated for more than 1250 years (which would render the proposition false at a conservative rate of 4 generations per century)? Quite possibly. They don’t, for example, have any form of agriculture or even a means to make fire, and their language is unintelligible. Chances are you have no recent (a few hundred, generations at least) Sentinelese relatives.
Explanation:
What is the proper definition for abiotic?
Answer:
In biology and ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems
Explanation:
a nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it: Abiotic factors can determine which species of organisms will survive in a given environment.
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One of the hottest ideas in engineering today is the concept of building an energy capturing system
similar to photosynthesis. The system would use light energy to make artificial food. What two
parts would such a system need, and how must these parts interact if they are to be like
photosynthesis?
The capturing device and converter are the two parts needed by the energy capturing system in order to make food.
If an energy capturing system wants to perform the same function of photosynthesis, then it must have two parts i.e. converter and capturing device. The capturing device works to capture or absorb light energy and send it to the place where this energy energy is converted into food.
The second part is the converted which convert light energy into food particles. These two parts interact with each other then the desire product will e achieved otherwise not so we can conclude that capturing device and converter are the two parts needed by the energy capturing system in order to make food.
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Which organ is Two tissue
Answer:
Organs, such as the heart, the lungs, the stomach, the kidneys, the skin, and the liver, are made up of two or more types of tissue organized to serve a particular function.
Explanation:
What are the functions of guard cells?
Guard cells control the opening and closing of the stomata in plant cells.
WHAT ARE GUARD CELLS:Guard cells are structures that surrounds the stomata of plant cells and regulates the opening and closing of the stomata. The stomata, which are located on the leaves of plants opens in order for the plant to perform gaseous exchange i.e. intake of CO2 and release of O2.Therefore, Guard cells function to control the opening and closing of the stomata in plant cells.
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The process in which impurities are removed from a mineral
Answer:
The removal of impurities is usually done chemically. For example, in the manufacturing of iron, calcium carbonate is added to the blast furnace to remove silicon dioxide from the iron ore. Zone refining is an economically important method for the purification of semiconductors.
Explanation:
reproduction in prokaryotes occurs primarily through the process known as
Reproduction in prokaryotes occurs primarily through the process known as Binary Fission.
Where are materials stored in single celled organisms?
Answer: Ribosomes most of the time.
Explanation:
what do cecilias represent in the language of flowers?
Answer:
From Sharp (Mercenary) in Starsnatch Cliff. In the language of the flowers, the meaning of the Cecilia is "The truest feelings of the prodigal son"
Explanation:
The Cecilia's represent in the language of flowers is true feeling of the prodigal son.
What is Cecilia's?The word Cecilia is of Latin origin meaning "blind" being the feminine form of Cecilia, which was derived from the name of a Roman clan belonging to the Latin cacus, also meaning "blind". This is the popularized by Saint Cecilia, who is the third century Roman martyr and the patron saint of music.
Saint Cecilia who is the patron saint of musicians sits calmly at a table holding the palm that symbolizes her martyrdom – in one hand and a sheet of music in the other. This represent that true feeling of the prodigal son in terms of language of flowers
Thus, the Cecilia's represent in the language of flowers is true feeling of the prodigal son.
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interphase definition ?
Answer:
The resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
Answer:
the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
Dan has a very large kidney stone that is not passing on its own. Which of the following may the doctor utilize?
Answer:
d. Any of the above
Explanation: is correct/post protected
How do turtles and cleaner fish benefit from their interactions
[tex] \: \: \: \: \: \: [/tex]
In a mutualistic relationship both organisms benefit from living closely together in a symbiotic relationshipexampleDifferent fish nibble on old skin and small creatures such as parasites living on the sea turtle. The fish gets dinner, the turtle a free surface clean!hope it helps[tex] \: \: \: \: \: \: [/tex]
hi plz someone talk to me
Answer:
yes sure what's the topic!?!?!?