Answer:
Molecules with bigger charge or size can not pass through every membrane but other molecules can.
1. bigger size
2. bigger charge
3. electronegativity
Explanation:
Hope this helps you!
The propagation of an action potential along the plasma membrane of a cell is dependent on the presence of
The propagation of an action potential across the plasma membrane of a cell depends on the presence of propagating electrical impulses.
What is a membrane action potential?The nerve impulse (or action potential) is a rapid change in the electrical potential of the membranes of neurons. For brief moments (few milliseconds) the electrical charge inside the nerve cell becomes more positive than the outside.
With this information, we can conclude that the propagation of an action potential across the plasma membrane of a cell depends on the presence of propagating electrical impulses.
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Can someone check if my answers are correct or wrong? thanks
Answer:
Your answers are correct or at least from the information I know and read super sorry if wrong but everything checks out!
What is the largest species of sea turtle in the world.
Answer:
The leatherback turtle
Explanation:
The Leatherback is the largest sea turtle existing today, which can reach up to 2000 pounds in weight and 8 feet in size.
Why are seeds an evolutionary advantage for seed plants?
Seeds allow for the transport of water and nutrients.
Seeds develop into adults without s x u a l reproduction.
Seeds protect the plant embryo and its food source.
Seeds provide the materials for photosynthesis.
The seeds an evolutionary advantage for seed plants because seeds develop into adults without sxual reproduction which means letter B.
What is the evolutionary importance of the seed?Seeds play an important role in the dispersion of plant species, that is, they ensure that plants spread throughout the environment. In addition to guaranteeing a greater area of domain for the species, competition between the newly born plant and the mother plant is also avoided.
Seeds allow the expansion of a type of plant around the world in addition to being a form of asexual reproduction that makes it unnecessary to join gametes.
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Real answer is c good luck guys
What are human sources of excess nutrients (nitrates and phosphates) in streams?
The central point that is used when the abdomen is divided into four quadrants is the:.
The central point which is described as the abdomen is categorized into four quadrants is the abdominopelvic quadrants.
What are abdominopelvic quadrants?The abdominal region is generally divided into quadrants, which is referred to as abdominopelvic quadrants.
The four abdominopelvic quadrants are as follows:
Right-upper quadrant (RUQ).Left-upper quadrant (LUQ).Right-lower quadrant (RLQ).Left-lower quadrant.Thus, The central point which is described as the abdomen is categorized into four quadrants is the abdominopelvic quadrants.
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Which of these is a renewable resource humans depend on? A) crude oil. B) Fertile soil. C) Natural gas. D) fossil fuel
This is the exact question and non are renewable so I don't understand
Answer:
fertile soil is the renewable source
how did james hutton's beliefs differ from the beliefs of his time?
Ecosystem ________________ is anything that disrupts the homeostasis of an ecosystem.
A. disturbance
B. resistance
C. resilience
D. respiration
How many chromosomes does the human genome contain?.
see the file attached!o(〃＾▽＾〃)o
Influenza, strep throat, measles, and the common cold are all infectious diseases. Which of the following methods can be used to
avoid getting infectious diseases?
OA. sharing a drink only with family members
OB. not washing fruit before eating it
OC. petting a sick animal
OD. washing your hands before eating
Answer:
D. Washing your hands before eating.
Explanation:
Option a, b and c are examples of not practicing proper hygiene and they increase the chances of you getting diseases. Option D is the only example that practices proper hygiene.
Highland Village, Texas, has implemented a program that involves parents working with police to guide at-risk young people. If a young person is caught committing a petty
crime, police work with their parents to decide on a punishment that the parents can enforce. What kind of police program is this an example of?
OA specific deterrence program
OB. community policing program
OC due process method program
OD. police-community relationship program
The kind of police program is an example of a police-community relationship program. Thus, option "D" is correct.
What is community policing?Community policing is an organizational philosophy that encourages the methodical use of problem-solving and partnership tactics to address the underlying conditions that lead to public safety issues like;
Social disorderCrimeFear of crimeThus, option "D" is correct.
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Which item is a carbon sink?
O A. Soil
OB. Animal respiration
OC. Clouds
OD. Plant respiration
Which of the following best explains the impact urbanization has on the carbon cycle? (4 points)
An increase in the population results in the depletion of groundwater, causing sinkholes to occur.
Decaying organic matter increases in landfills, which increases the amount of carbon dioxide in the atmosphere.
Human-made structures absorb solar radiation and cause an acceleration of the greenhouse effect.
Increased runoff causes soil to erode and prevents the growth of vegetation.
The option that best describes the impact of urbanization on carbon cycle is : ( B ) Decaying organic matter increases in landfills, which increases the amount of carbon dioxide in the atmosphere.
Effects of the organic matter on the environmentWhen organic matter decays, this leads to an increase in landfills and as the landfills increases there is also a corresponding increase in the amount in the carbon dioxide which will be released into the atmosphere.Also an increase in the population of an area does not result in the increase of carbon dioxide in the atmosphere.
Hence we can conclude that The option that best describes the impact of urbanization on carbon cycle is Decaying organic matter increases in landfills, which increases the amount of carbon dioxide in the atmosphere.
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Which of the following does not result to genetic variation and changes in gene frequency?
a. no gene flow
b. a typhoon that killed individuals belonging to a population composed of five alleles for a certain gene
c. a group of individuals isolating themselves from a larger population
d. modifications or changes in the specific DNA sequence of an organism
Answer:
a. no gene flow
Which of the following occurs when the evolutionary effects of genetic drift is the greatest?
The population size is small
The population size is large
$exual selection occurs
Intraspecific competition is weak
Answer:
The population size is small
Explanation:
Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error). Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Answer:
The population size is small.
Explanation:
what happens when a cold front replaces a warm front
Answer:
When a cold front overtakes a warm front, it creates what's called an occluded front that forces warm air above a frontal boundary of cooler air masses.
Explanation:
The presence of a cold front means that cold air is advancing and pushing underneath warmer air. This is because the cold air is ‘heavier,’ or denser, than the warm air. Cold air is thus replacing warm air at the surface.
explain micronutrients
Answer:
Micronutrients are vitamins and minerals needed by the body in very small amount
Explanation:
because the definition match
A bird species known as the cattle egret is often found near farms in wet areas. The bird waits, sometimes even perched on a cow's back, until the cow kicks up a frog or fish while it walks. Then, the bird strikes and eats the exposed prey. This is an example of what kind of feeding relationship
The interaction between a cattle egret and a cow is an example of Mutualism.
What is the Feeding relationship?The feeding relationship may be defined as a classification of species interaction through which the organism of one species feeds on the other via interacting with it.
Mutualism is a type of +,+ relationship in which the species of a cattle egret benefitted due to the consumption of prey that is present on the cow's back, on the other hand, the cow also gets benefits by cleaning the body (back) by cattle egret.
Therefore, it is well described above.
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Which best indicates pen pressure in handwriting analysis?
The height-to-width ratio is uniform.
The capital letters and lowercase letters are connected.
The letters are either above, below, or on a baseline.
The downstrokes and upstrokes are an even width .
Answer:
The letters are either above, below, or on a baseline.
Explanation:
Explain how the liver is involved in regulating the composition of the blood and in protecting the body against toxic substances
Answer:
The liver regulates most chemical levels in the blood and excretes a product called bile. This helps carry away waste products from the liver. All the blood leaving the stomach and intestines passes through the liver.
Human development may change depending upon the environment. This is because development is
Answer:
This is because development is dynamic process.
Answer quickly please
Within a phase, a change in heat causes the temperature of the substance to _____ as the _____ energy of the molecules changes. During a phase change, however, a change in heat causes a change in the _____ energy of the molecules and the temperature will _____.
Within a phase, a change in heat causes the temperature of the substance to change as the kinetic energy of the molecules changes. During a phase change, however, a change in heat causes a change in the potential energy of the molecules and the temperature will stay the same.
What is Potential energy?Potential energy may be defined as a form of accumulated energy that relies upon the comparative situation of diverse parts of a system.
The above passage determines the differentiation between the kinetic and potential energies with respect to temperature and phase change.
Therefore, it is well described above.
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The austrian monk whose experiments with pea plants were the beginning of our understanding of genetics was:.
In a certain population of rabbits, the allele for brown fur
is dominant over the allele for white fur. If 10 out of 100
rabbits have white fur, what is the allele frequency for
the recessive allele?
The Hardy-Weinberg equation is:
[homozygous dominant]2 + 2[heterozygous] +
[homozygous recessive]- = 1
• A. 0.32
• B. 0.10
• C. 0.95
• D. 0.90
SUBMIT
The allele frequency for the recessive allele is B. 0.10. Thus, option "B" is correct.
How, explain your answer?The Hardy-Weinburg equation is p + q = 1, or p^2 + 2pq + q^2 = 1, where p is dominant and q is recessive.
If 10 out of 100 rabbits have white fur, 10% of the rabbits have white fur. Therefore, 90% of the rabbits have brown fur, which can be substituted into the first equation to becoming 0.9 + 0.1 = 1. Now that we know what p and q equal, we can solve the rest of the equation.
0.9^2 = 0.81
0.9 * 0.1 * 2 = 0.18
0.1^2 = 0.01
Therefore, the allele frequency of the recessive allele is 0.1.
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Dna telomerase is one of the last enzymes
used in dna replication.
what does dna telomerase do for dna
replication?
a. adds base pairs during replication
b. unwinds the dna helix at the start of replication
c. adds a tail to the dna strand at the end of replication
d. adds the backbone to the new strands during replication
DNA telomerase adds a tail to the DNA strand at the end of replication. Thus, the correct option is C.
What is DNA replication?DNA replication may be defined as a biological process in which the genome's DNA is duplicated in cells. It is completed in three steps, i.e. initiation, elongation, and termination.
DNA telomerase is an essential enzyme in DNA replication that augments the ends by duplicating the RNA template and extending one end of the chromosome.
Therefore, the correct option for this question is C.
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Answer: c. adds a tail to the dna strand at the end of replication
Explanation:
In a population of birds, the color of their feathers is controlled by an incompletely dominant gene. Homozygotes of one type are sky blue, homozygotes of the other type are mauve, and heterozygotes are cobalt colored. Population 1 contains 10,000 birds and 6,400 of those 10,000 are sky blue. Population 2 contains 10,000 birds and 900 of those 10,000 are sky blue. Both populations are under Hardy-Weinberg Equilibrium. Determine the HWE frequencies of each color in each population separately.
Answer:
if it contains 10000 than it must be 100373282
Explanation:
Stage of photosynthesis
Answer:
1.we exhale carbon dioxide while the plants inhale it
2.sunlight gets absorbed through leaves
3.plants take water up their roots
4.in return we get oxygen and the plants get glucose (or sugar to survive
reactants products
H2O+Sunlight+CO2==========>Glucose+O2
Do you find one producer to be dominant? Why might one producer be dominant over another?
Market dominance is influenced by elements such as market share, brand awareness, pricing power and entry barriers.
If a manufacturer has a fairly large market share, a solid brand reputation, and devoted consumers, they can be considered dominant. Economies of scale can also aid in dominance, by allowing for cheaper production costs and competitive pricing.
New competitors may be discouraged by entry barriers such as costly financing requirements or proprietary technology. Market dominance may change over time, due to changes in consumer preferences or technological advances. To establish a fair market and prevent a single producer from abusing its dominant position, competition and regulatory measures are important.
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