Where the potential of the cell is higher than the resting potential, this results in the inward flow or influx of sodium ions or cations. When the action potential peaks, the sodium channels shut while the outflow of potassium happens.
Neurotransmitters are used by neurons to communicate. Neurotransmitters are released by the action potential as it develops inside the cell and assists in the transmission of impulses from one neuron to another.
The permeability of the voltage gated ion channels, as well as the existence of the myelin sheath, are in an appropriate state. Once the action potential is set off, the neuron's depolarization (2) causes sodium channels to open, allowing sodium ions to enter the cell and creating a net positive charge in the neuron in comparison to the extracellular fluid.
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Question 2 of 10
What is the likely effect of increasing the use of fossil fuels?
O A. Pollution levels and their effects will decrease.
B. Global warming will steadily decrease.
C. Biodiversity will decrease in most ecosystems.
D. Ecosystems will become more resilient.
How is pH measured?
The pH is the quantitative measurement of acidity or basicity of a solution. This can be measured using a pH meter or pH paper (photo shown below). Its scale is from 0 (most acidic) to 14 (most basic).
ANSWER:
In fruit flies, there are molecules in the egg that determine the future head and tail ends of the animal. What occurs when mrna from the head end of an embryo is injected into the tail end of an early embryo?.
Answer: Some head structures develop at the tail end; the head end develops normally.
Explanation: In fruit flies, there are molecules in the egg that determine the future head and tail ends of the animal. What occurs when mRNA from the head end of an embryo is injected into the tail end of an early embryo?
do you support the lgbtg community
Answer: No
Explanation:
I hope it dies
Which particles orbit around the nucleus?
Answer:
Negative Charged Particles which are Electrons.
Answer:
Electrons
Explanation:
What are electrons:Electrons are particles charge of negatively electricity.
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what are some of the organs involved in the respiratory system
Answer:
Respiratory system organs: Lungs, trachea, Nose
Explanation:
How is the Respiratory system helpful.The Respiratory system helps your help take out carbon dioxide and take in oxygen.
What's the Respiratory System.It's a system of organs and tissues that help you breathe.
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how an atom change if all of its electrons are removed
Answer:
If all the electrons of an atom are removed, it will change to become a positively charged ion called a cation. Additionally, the loss of all of its electrons means there is no negative charge to balance the positive charges of the protons.
Explanation:
Parasites often play a role in maintaining the carrying capacity of an organism. Parasites are organisms that feed on or in an individual using the host organism’s resources while providing nothing in return. Parasites can best be described as which of the following?
A. producer
B. bio factor
C. abiotic factor
D. primary consumer
The correct answer is B. A parasite is a biotic factor.
What is a parasite really?
Parasite: an organism that depends on the host organism for its survival. It gets all its nutrients, food and shelter from the host, and sometimes, it even harms the host organism. It includes organisms like fungi, protozoas etc.
Parasites can also cause diseases in humans, examples of parasites that cause diseases are protozoa, ectoparasites, helminthes, etc.
Other examples are tapeworms, fleas and barnacles. Tapeworms are attached inside the intestines of animals like pugs, cows, etc.
Parasites get inside our bodies by the following ways:
Poor hygiene Weak immune system Visiting areas that have parasites Bad sanitationHiv/ aidsTherefore, parasites are biotic factors. They depend on hosts for survival.
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what is the effect energy is transferred through the circulation of heated molecules?
Kinetic energy is the energy that is transferred through the circulation of heated molecules.
What is the effect of the transfer of heat energy?If two bodies at different temperatures are conducted together, energy is transferred i.e. heat flows from the hotter body to the colder. The effect of this transfer of energy normally, but not always, is an increase in the temperature of the colder body and a reduction in the temperature of the hotter body. This is called conduction and is a very effective method of heat transfer in metals. However, air conducts heat poorly. Heat transfer is defined as the process in which the molecules are moved from a region of higher temperature to a lower temperature.
So we can conclude that Conduction is the transfer of heat energy from one matter to another or within a substance.
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Which of these is a qualitative observation?A. The length of time during which something is measuredB. The amount of each type of chemical in a water sampleC. An outcome that proves a hypothesis is wrongD. The appearance of something stated in descriptive words
Observation is made either through qualitative or quantitative way. Using the five senses to be able to collect data is a research method using qualitative observation. It is based on the sensory organs of the researcher and considered as a subjective method of collecting data. Using numerical and statistical parameter in collecting data for a research is a quantitative observation. It is associated with the use of values that can be counted.
An outcome that proves a hypothesis is wrong is referred to as a failed hypothesis.
Answer - Option D. The appearance of something stated in descriptive words
in general, autonomic tone of peripheral blood vessels increases when in general, autonomic tone of peripheral blood vessels increases when parasympathetic stimulation is increased. sympathetic stimulation is increased. parasympathetic stimulation is decreased. somatomotor stimulation is increased. sympathetic stimulation is decreased.
In general, the autonomic tone of peripheral blood vessels increases when sympathetic stimulation is increased and parasympathetic stimulation is decreased.
How does sympathetic and parasympathetic nervous stimulation affect blood vessels?Sympathetic nervous stimulation refers to the stimulation of the autonomic nervous system during periods of intense activities known as the flight or flight response. The sympathetic nervous stimulation prepares the body for action by increasing heart rate, increasing respiratory rate, increasing blood pressure, etc.
Parasympathetic nervous stimulation refers to the stimulation of the autonomic nervous system during periods of rest. The parasympathetic nervous stimulation returns or keeps the body at rest by decreasing heart rate, decreasing respiratory rate, decreasing blood pressure, etc.
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Which of the following organisms is would you expect to be most abundant in the tall grass prairie ecosystem?
The animals that will be present abundantly in the tall grass prairie ecosystem are: (2) White-tailed deer and cottontail rabbits.
Ecosystem can be defined as the surroundings and the species together of an area. Thus, every ecosystem has its own specific type of environmental conditions and also the plant and animal species. The examples of ecosystem are: rainforest, savanna, steppe, taiga, tundra, etc.
Prairies are a type of grasslands and are also an example of ecosystem. The prairies are long stretches of flat lands that contain grasses with very few trees. The prairies are abundant in the regions of North America.
The question is incomplete, the complete question is:
Which of the following organisms is would you expect to be most abundant in the tall grass prairie ecosystem?
Grasses and flowering plantsWhite-tailed deer and cottontail rabbitsBobcats and CoyotesHarriers and kestrelsTo know more about prairies, here
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What role does the chicken play
Answer:
Secondary Consumer
Explanation:
Refer to the diagram below.
Which type of biomolecule is it?
A. Carbohydrates
B. Lipids
C. Nucleic Acids
D. Proteins
7. Cells obtain energy by either capturing light energy through photosynthesis or
by breaking down carbohydrates through cellular respiration. In both
photosynthesis and cellular respiration, the energy is ultimately derived from the
Sun in a
O A. reversible process.
O B. highly efficient process which involves no loss of heat to the environment.
C. one-way process.
O D. pathway that involves taking in heat from the environment at each step.
In both photosynthesis and cellular respiration, the energy is ultimately derived from the Sun is a one-way process. Option C.
The plant captures mild strength and releases oxygen, that is finally ate up in cell respiration. Thus, the sun is the final supply in each the reaction. The strength is in the long run derived from the sun; this method is usually termed as a one-manner method.
Photosynthetic cells contain chlorophyll and different mild-touchy pigments that seize sun strength. In the presence of carbon dioxide, such cells are capable of convert this sun strength into strength-wealthy natural molecules, inclusive of glucose.
Through the method of cell respiration, the strength in meals is transformed into strength that may be utilized by the body's cells. During cell respiration, glucose and oxygen are transformed into carbon dioxide and water, and the strength is transferred to ATP.
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Hi!!
With the help of diagram explain how exchange of gases occurs in leaf of a plant.
Please I need it asap
Answer:
The stomata will take in Carbon dioxide while the cell membrane will release oxygen
Explanation:
The results of zajonc's study on cockroaches and social facilitation showed __________.
The results of zajonc's study on cockroaches and social facilitation showed
similar results in humans. This led to his theory of social facilitation.
Moreover, Social facilitation is a phenomenon in which people show increased levels of effort and performance when in the presence of others whether real, perceived, implied, or virtual compared to their level of effort and performance when alone.
In addition, social facilitation is thought to involve three factors, including physiological factors, cognitive factors, and affective factors, which are anxiety and self-presentation. A tendency to perform simple or well-rehearsed tasks better in the presence of others than alone. Social inhibition. The tendency to perform complex or difficult tasks worse in the presence of others is called social facilitation.
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In multicellular organisms, which term tells the highest level of cellular organization?
organs
cells
tissues
systems
Answer:
D, Systems
would be your answer
how many bones in human body?
Answer:
206 bones in the adult human
How is ATP is involved in making sugars in photosynthesis?
Explanation:
For plants, this is a particularly important source of ATP because ATP is also required for the first glucose synthesis process. Without a supply of ATP produced by photosynthetic processes, plants would be caught in a "catch-22" position where they would need to produce glucose in order to manufacture ATP.
Which answer is not a mechanism for evolution?
Random mutation is not an mechanism of evolution .
Five important factors for evolution mechanism are Natural Selection, genetic drift, gene flow, mutations, and non random mating. Through these process members of a population differs greatly in their traits.
Natural selection is the most important mechanism of evolution, other evolutionary mechanisms can also change the frequencies of traits in populations. These include mutation, genetic drift and migration. Natural selection have 5 basic and major components These are Variation (individual have variation in appearance and behavior ), Inheritance( traits are continuously passed on from parent to offspring), Selection, Time and Adaptation.
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Suppose two monsters that are heterozygous for eye shape
are crossed. What is the likelihood that the offspring will have
three eyes? (Note: Two eyes are dominant to three eyes.)
Answer:
then the percentage of offspring with recessive phenotype will be: Aa x Aa = AA Aa Aa aa, so recessive phenotypes would be 1/4 = 25%.
Explanation:
The following is a list of the events that occur during a muscle contraction. Choose the one that occurs last
1. Myosin cross-bridges bind to the actin.
2. The free myosin head splits ATP.
3. Calcium ion is released from the sarcoplasmic reticulum.
4. The myosin head pivots toward the center of the sarcomere.
5. Calcium ion binds to troponin.
6. The myosin head binds an ATP molecule and detaches from the actin.
a. 3,5, 1,4,6,2
b. 1,4,6,2,3,5
c. 3,5, 1,2,4,6
d.5, 1,4,6,2,3
e. 1,3,5,4,6,2
The answer is a) 3,5,1,4,6,2. Muscle contraction is defined as the muscle response to a stimulus that involves the interaction of the contractile proteins actin and myosin in the presence of calcium.
The correct sequence of muscle contractions is:
3. Calcium ions are released from the sarcoplasmic reticulum
5. Calcium ions binding to Troponin
1. Myosin Bridges Bind Actin
4. The myosin head pivots towards the center of the sarcomere
6. Myosin heads bind to ATP molecules and are detached from actin filaments
2. Free myosin head cleaves ATP.
The movement of muscle shortening occurs when the myosin head attaches to actin and actin is pulled inward. This action requires energy provided by ATP. Myosin binds to actin at the binding site of the globular actin protein. Myosin has another binding site for ATP where enzymatic activity hydrolyzes ATP to ADP, releasing an inorganic phosphate molecule and energy.
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how does new traits become common?
Answer:constant repeat of the traits
Explanation:
Recessive lethal alleles tend to be more common than dominant lethal alleles in part because.
Dominant lethal alleles are those that only need to be present in one copy in an organism to be fatal. These alleles are uncommon in populations because they usually kill an organism before it can pass on its lethal allele to its offspring.
Lethal alleles (also known as lethal genes or lethals) are alleles that cause the organism that carries them to die. They are typically caused by mutations in genes that are required for growth or development. Huntington's disease, a neurological disorder that reduces life expectancy, is one example of a disease caused by a dominant lethal allele.
Because Huntington's disease develops slowly, people who carry the allele can pass it on to their children. If both recessive alleles of this gene are present in the same person, it results in death. Because a certain level of protein output is maintained, recessive lethal alleles do not cause death in the heterozygous form.
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Which of the following correctly describes how two systems of the human body interact to carry out life processes?
A.
The excretory system takes fluids into the body, and the digestive system disposes of excess fluids.
B.
The digestive system takes oxygen into the body, and the respiratory system distributes it.
C.
The circulatory system takes fluids into the body, and the excretory system disposes of excess fluids.
D.
The respiratory system takes oxygen into the body, and the circulatory system distributes it.
Answer:
D.
The respiratory system takes oxygen into the body,and the circulatory system distributes it
A(n) ___ worldview puts humans above the earth.
A. planetary-management and stewardship
B. none of these
C. planetary-management
D. environmental-wisdom
E. stewardship
F. all of these
Answer: C
Explanation:
which of the following are sources of antibodies for serological testing? which of the following are sources of antibodies for serological testing? cells producing monoclonal antibodies vaccinated animals, cells producing monoclonal antibodies, and viral cultures viral cultures vaccinated animals and cells producing monoclonal antibodies vaccinated animals
Monoclonal antibodies and vaccinated animals are two sources of antibodies used in serological testing.
Which of the following is a test to see if soluble antigens are present?It is possible to modify the agglutination test to measure soluble antigens. The term "hemagglutination inhibition" refers to this test. Hemagglutination inhibition refers to the measurement of soluble antigen's capacity to prevent antibodies from adhering to antigen-coated red blood cells.
Which antibodies are present in saliva, tears, and mucus?IgA is the primary class of antibody present in a variety of bodily fluids, including tears, saliva, respiratory, intestinal, and colostrum secretions. IgA levels in serum are quite low. B cells found in the body's mucous membranes create IgA.
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which statement is correct regarding internal or external respiration? question 32 options: internal respiration occurs in the alveoli internal respiration occurs in the body's tissues external respiration occurs in the body's tissues external respiration involves the exchange of gases with the internal environment none of the statements are correct
The correct statement regarding respiration is that internal respiration occurs in body tissue.
Inhaling air into the lungs and exhaling it into the atmosphere are both parts of external respiration, usually referred to as breathing (exhalation). The cells and blood arteries exchange oxygen and carbon dioxide during internal respiration. Food is broken down into carbon dioxide and water by oxygen during internal respiration, which releases energy in the form of ATP. Internal respiration, which takes place inside of living cells, is also known as cellular respiration.
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if you select for two closely related species of bacteria on media and distinguish between them through sugar fermentation, which type of medium is this?
Specific species can develop on selective media, whereas differential media are used to separate one species from another.
What is fermentation explain?fermentation is an aerobic chemical method that breaks away molecules like glucose. More specifically, fermentation is really the foaming that happens during the creation both beer and wine. a procedure that has been around for at least 10,000 years.
What happens during fermentation?The breakdown of carbohydrates occurs by the enzyme of microbes during fermentation in the absence of air. Microbes like bacteria and fungi are able to produce enzymes that really can break down a variety of sugar molecules because they have special metabolic genes.
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