Explanation:
Cell membranes are selectively permeable. Some solutes cross the membrane freely, some cross with assistance, and others do not cross at all. A few lipophilic substances move freely across the cell membrane by passive diffusion. ... Large molecules do not cross intact cell membranes, except in certain special cases.
Which of the following are outputs of photosynthesis that are used as inputs for cellular respiration? [SELECT ALL THAT APPLY]
a. H20
b. CO2
c. O2
d. C6H12O6
Two parents, both with brown eyes, have four children. One child has brown eyes, like his parents, but the other three all have blue eyes. One of the children has been learning about genetics in science class and knows that brown eyes are dominant to blue eyes in humans. The student developed the following model of a Punnett square to predict the genotypes of his parents and his siblings.
Based on his model, the student claims that only one of the four children should have blue eyes. Which of the following explanations best describes why the Punnett square does not model the traits in the student’s family? (DOK 3)
Answer:
Punnett squares are not exact answers, they are only used to predict traits.
A.
The student is forgetting that a Punnett square is used to predict the outcomes of a genetic cross. The actual results do not always match up to the predicted outcomes.
Provide an
example of how energy from the sun affects patterns of movement in the ocean.
Answer:
The sun's heat evaporates some water and raises the concentration of the salt, causing the water to be more dense. Or it could be the gravitational pull of the sun from Earth, just like how the moon affects tides. I hope this helps you :)
Explanation:
Why do waves move faster at higher temperatures and in a solid phase?
O There is more energy and the particles are farther apart.
O There is less energy and the particles are closer together.
O There is less energy and the particles are farther apart.
There is more energy and the particles are closer together.
Answer:
B
Explanation:I took the test if u need help follow me
Waves move faster in higher temperature and in solid phase because there is more energy and the particles are closer together.
What is meant by intermolecular force ?Intermolecular force is defined as the force of attraction experienced between the neighboring molecules in the same state.
Here,
During higher temperature and when in a solid phase, the waves exhibit movements very faster than in other phases.
This is because, when the temperature of the system is increased, the energy of the molecules in the system will be increased to a higher level. This energy formation is in the form of kinetic energy of the molecules.
Molecules in the solid phase have a greater intermolecular force of attraction with their neighboring molecules. Therefore, the molecules in the system will be more closer to each other.
As the kinetic energy of the molecules in the system increases, the molecules will start vibrating. These vibrating molecules induces the vibration to their neighboring particles, since they are closer together.
As a result, more and more highly energetic molecules are set to vibrate, which causes the wave to move faster in the system.
Hence,
Waves move faster in higher temperature and in solid phase because there is more energy and the particles are closer together.
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10 POINTS !!! Why is it risky to build something whose natural frequency can be matched by
external vibrations?
Answer:Most objects have at least one natural frequency of vibration. If a nearby object vibrates at the same frequency, it can cause resonance. Resonance is an increase in amplitude of a vibration that occurs when external vibrations match an object's natural frequency.
Explanation:
It is risky to build something whose natural frequency is matched with external vibrations because of ; The effect of resonance
When an object constructed has a natural frequency which is equal to the frequency of a nearby external vibration, the amplitude of the vibration of the object will increase due to the resonance effect which occurs because the external frequency matches up with the natural frequency of the constructed object.
The negative effect of resonance is the increase in the amplitude of the vibration of the object which might lead to the partial or complete collapse of the constructed object.
Hence we can conclude that It is risky to build something whose natural frequency is matched with external vibrations because of ; The effect of resonance
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Capillaries are blood vessels that *
A.) deliver blood to the cells of the body
B.) contain striated muscle
C.) carry blood toward the heart
D.) readily exchange materials between the blood and body cells
Answer:
D.
Explanation:
The primary function of capillaries is the exchange of materials between the blood and tissue cells.
After the first replication was observed in their experiments testing the nature of DNA replication, Meselson and Stahl could be confident of which of the following conclusions?
a
Replication is semi-conservative.
b
Replication is not dispersive
c
Replication is not conservative.
d
Replication is neither dispersive nor conservative.
Replication is semi-conservative because the two chains of DNA are separated by the helicase and corresponding nucleotides are placed on each chan by an enzyme called DNA polymerase
∠A and \angle ∠B are supplementary angles. If m\angle A=(3x-23)^{\circ}∠A=(3x−23)
∘
and m\angle B=(2x-12)
∘
, then find the measure of \angle ∠B.
Answer:
[tex]B = 74[/tex]
Explanation:
Given
[tex]A=(3x-23)[/tex]
[tex]B=(2x-12)[/tex]
Required
Find B
Since A and B are supplementary, then:
[tex]A + B = 180[/tex]
Substitute values for A and B
[tex]3x - 23 + 2x - 12 = 180[/tex]
Collect Like Terms
[tex]3x + 2x = 180 + 23 + 12[/tex]
[tex]5x = 215[/tex]
Divide through by 5
[tex]\frac{5x = 215}{5}[/tex]
[tex]x = 43[/tex]
Substitute 43 for x in [tex]B=(2x-12)[/tex]
[tex]B = 2*43 - 12[/tex]
[tex]B = 74[/tex]
What causes lactic acid to build up in muscle cells?
Answer:
anaerobic metabolism.
Explanation:
Answer:
When you don't have or there is not enough oxygen in the muscles to break down glucose and the sugar and it called anaerobic respiration
Explanation:
Which upper chamber of the heart contains oxygen-rich blood?
a. the right atrium
b. the left atrium
c. the right ventricle
d. the left ventricle
Answer:
b. la aurícula izquierda
Explanation:...
Answer:
B.the left atrium
Explanation:
List the name and functions of the major protein involved in transcription.
Answer:RNA polymerase
Explanation: adds nucleotides to form an mRNA copy from DNA by binding to a promoter sequence at the start of a gene, using the DNA template to synthesise the mRNA, and stopping at a termination sequence
The functions and names include adding nucleotides to form an RNA (RNA polymerase), binding DNA for promoting transcription (transcription factors), and stopping transcription at the termination sequence.
What is transcription?Transcription is the cellular process by which a code in the genetic material (DNA) is passed to another nucleic acid called RNA.
During gene transcription, a fragment of DNA called gene is used as a template to create a messenger RNA.Subsequently, this mRNA is then used as a template to create a protein by a process called translation.In conclusion, the functions and names include adding nucleotides to form an RNA (RNA polymerase), binding DNA for promoting transcription (transcription factors), and stopping transcription at the termination sequence.
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Which statement best summarizes how the light-dependent reactions and light-independent reactions (Calvin cycle) work together during photosynthesis
The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose
The light-dependent reactions capture energy and the light-independent reactions use that energy to make ATP
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make ATP
The light-dependent reactions capture bees and the light-independent reactions blend those bees up into golden cheddar mac and cheese... watch
out for the stingers though
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make energy in the form of
sunlight
The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose
The energy captured in the light-dependent reactions is stored in ATP and NADPH and is used in Calvin's cycle to fixateCO2 in order to synthesize glucose
How would your body be affected if your pituitary gland did not work properly
Answer:
For example, if the pituitary gland does not produce enough growth hormone in a child, they may have a permanently short stature. If it doesn't produce enough follicle-stimulating hormone or luteinizing hormone, it might cause problems with sexual function, menstruation, and fertility.
Explanation:
Answer:
c
Explanation:
How many chromatids are found in this nucleus?
Six chromosomes in metaphase are shown. They resemble the letter X with red dots in the center.
A.
3
B.
6
C.
12
D.
24
Each chromosome has 2 chromatids so 2*6=C.12 chromatids
Answer:
C. 12
Explanation:
Each chromosome has 2 legs called chromatids. There are 6 chromosomes, so 6*2 = 12.
Who was one of the first people to identify and observe cells from cork?
Answer:
The first person to observe cells was Robert Hooke. Hooke was an English scientist. He used a compound microscope to look at thin slices of cork.
Explanation:
Sorry if I am wrong let me know if I am.
i need the ansewer to this but i scammed these points any way
Which statement describes carbohydrates?
Carbohydrates store and transmit an organism’s genetic information.
Carbohydrates provide energy to organisms.
Carbohydrates help with an organism’s tissue growth and repair.
Carbohydrates provide an organism with long-term energy storage.
which is a non-renewable resource that is used to generate electrical energy?
A.water
B.coal
C.sunlight
D.ores
Answer:
B) Coal
Explanation:
B) Coal
It is coal, bc coal is a non-renewable resource
if you are to establish your own animal and fish raising business,what it would be and why?
Answer:If you are to establish your own animal and fish raising business,what it would be and why? Get the answers you need, now!
Explanation:
Looking at the image of the freshwater lake ecosystem in the reading, can you name biotic and abiotic factors in this specific ecosystem? What changes in this ecosystem would impact the biotic factors?
Answer:
Biotic: Fish, Plants, Animals, Some bacteria in the water
Abiotic: Water, Sunlight, Rocks
Changes to any ecosystem can affect the way organisms live. It can be a big change like having to adapt to their surroundings. An example is being camouflaged, or having an increase in population. Bad changes can lead to population decline, or maybe even being extinct.
Explanation:
There isn't really an image to see, but I put what I could think would be in a lake ecosystem.
When food leaves the stomach it is:
partly digested
completely digested
finished with the digestive system
undigested
Answer:completely digested
Explanation:because the enzymes in your stomach break it down
Answer:
Completely Digested....
hopes this helps you
Explanation:
Identify the following carbohydrate
A. Monosaccharide
B. Disaccharide
C. Polysaccharide
D. None of the above
Answer:
Its A.
Explanation:
btw i love ur luffy pfp
State, in terms of the number of subatomic particles, one similarity and one difference between the atoms of these isotopes of element X.
Answer:
The atomic number is determined by the number of protons in the atom.
Neutrons can vary the mass of atoms of the same element; atoms of the same element with the different atomic masses are called isotopes.
Electrons do not contribute a meaningful amount of mass to an atom, and only vary the charge of the atom. A charge atom is an ion.
Explanation:
i hope this is right :)
Fred notices that all of his friend's brothers and sisters have dark hair. What is the most likely explanation for this characteristic?
O They have identical genes.
O They eat only healthy foods.
O They live in the same environment.
O They have parents with dark hair.
Answer:
They have identical genes.
Explanation:
Hope it helps
Match the type of water with the location in which it is found. surface water ,water vapor, atmosphere, well ,glacier ,river, groundwater ,ice.
Answer:
Surface water <---> river
Ground water <------> well
Water vapour <------> atmosphere
Glacier <-------> ice
Explanation:
Answer:
Plato
Explanation:
What are two ways that acid rain affects the environment?
Acid rain can exhibit adverse affects on the environment by leaching aluminium from the soil and by creating nitrogen pollution.
The effects of acid rain:Acid deposition or acid rain is a term, which comprise any kind of precipitation with acidic constituents like nitric acid or sulfuric acid, which fell to the ground from the atmosphere in dry or wet forms.
The ecological effects of acid rain are clearly evident in aquatic environments like lakes, streams, and marshes as it can be harmful to aquatic species and wildlife associated with it. When acid rain flows through the soil it can leach aluminum from the soil, which washes into streams and lakes.
Some kinds of animals and plants are able to withstand acidic waters and some amounts of aluminum. However, some of those which are acid-sensitive will get lost due to decline in pH.
Acid rain also comprise nitrogen, and thus it can result in nitrogen pollution in the coastal waters leading to decline in the populations of shellfish and fish in the regions. Therefore, nitrogen in the acid rain can exhibit deleterious effect on some of the ecosystems.
Thus, acid rain affects the environment by creating nitrogen pollution and by leaching aluminum from the soil components.
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which of these factors will affect a population regardless of the populations density ? PLEASE HELP
Answer:
Density independent factors affect populations regardless of their size. Examples are winter, drought, forest fires. These factors are mostly abiotic (non-living). Predation affects population size.
disease
The factors that will affect a population regardless of population density is flooding. The correct option is C.
What is population?A population is the entire group about which you want to draw conclusions. A sample is the specific group from which you will collect data.
The sample size is always less than the total population size. A population for this research does not necessarily refer to people.
A population is a subset of individuals from one species that live in a specific geographic area and interbreed in reproducing species. Some species' geographic boundaries are easy to establish, while others are more difficult.
Population change is influenced by three factors: birth rate, death rate, and migration. Though one or two of these factors may have an impact on a population in a specific area, all three have an impact on population change.
Thus, the correct option is C as the population can be get affected by flooding without regarding their density.
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Which of the following is an example of cohesion?
A. water transforming into vapor
B. water soaking into a paper towel
C. water slowly dissolving rocks over time
D. water forming droplets during a rainstorm
Answer:
b
Explanation:
An eagle is a predator for squirrels. A new law stops humans from hunting
eagles, and the eagle population increases. What will happen to the squirrel
population?
A. The carrying capacity of the ecosystem will increase.
B. The squirrel population will increase.
C. The ecosystem will reach Hardy-Weinberg equilibrium.
D. The squirrel birthrate will decrease.
Answer:
Imma say D
Explanation:
As eagle feeds on squirrels, an increase in the number of eagles, will obviously lead to a decrease in the number of squirrels.
An eagle is a predator for squirrels, a new law stops humans from hunting eagles, and the eagle population increases, so the most likely outcome is that the squirrel population will decrease due to an increase in eagle predation, which is option D.
What is a predator-prey relationship?Eagles are predators of squirrels, and an increase in the eagle population will likely lead to an increase in predation on squirrels. This could result in a decrease in the squirrel population. However, it's worth noting that the relationship between predator and prey populations is complex, and the effect of an increase in the predator population on the prey population will depend on a variety of factors. While an increase in the eagle population due to new laws that prohibit hunting them may have positive implications for their conservation, it could potentially have negative consequences for the squirrel population.
Hence, the most likely outcome is that the squirrel population will decrease due to an increase in eagle predation, which is option D.
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A two-substrate enzymatic reaction in which one product is produced before the second substrate binds to the enzyme has a
Answer:
The correct answer is - Ping pong Mechanism.
Explanation:
The ping pong mechanism of the enzyme is a non-sequential mechanism of two-substrate enzymatic reaction in which product is produced after the binding with the first substrate.
After the produced form due to the binding of the enzyme to the first substrate, it changes into a temporary form that binds with the second substrate and completes the reaction.
Thus, The correct answer is - Ping pong Mechanism.
What will be the approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day? (Assume ambient temperatures are normal)
98.6
97.2
95.8
99.5
Answer:
c
Explanation:
I think its c. sorry if im wrong
The approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day is 95.8. So, the correct option is C.
What do you mean by Ambient temperature?Ambient temperature may be defined as the air temperature of any object or environment where equipment is stored.
After the death of a victim, the temperature of the liver is found lower than that of the normal temperature of the body. Because as the individual dies, the speed of blood movement decreases with respect to time.
Therefore, The approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day is 95.8.
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