Cones are receptor cells contained in the retina and are useful in color perception, particularly in bright-light conditions.
Retina :The inside of the eye's back is lined by a thin layer of tissue called the retina. It stands close to the optic nerve. The retina's job is to collect light that has been focused by the lens, transform it into neural signals, and deliver those signals to the brain for visual identification.
What is the retina of the eye?Light that enters your eye is converted by the retina into electrical signals that your optic nerve sends to your brain, which produce the images you see. It's a crucial component of your vision. The retina is the layer that is located at the very back of your eye. The retina contains rods and cones, two different types of receptor cells. These cells pick up light energy and absorb it for the nervous system to use.
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if an individual receive a dominant allele and a recessive allele for a trait, this individual is considered . a hybrid heterzygous homozygous codominant
The individual is considered to be heterozygous since they have received one dominant and one recessive allele for a trait. Heterozygous means the individual has two different alleles for a trait. When both alleles are the same, the individual is considered homozygous. If both alleles are different, but neither is dominant nor recessive, then the individual is considered to have codominance.
A gene can have multiple alleles, and when two alleles are different from each other, the one with the most dominance is called the dominant allele, while the other is called the recessive allele. An individual is said to be heterozygous when they have two different alleles for a trait, meaning they received one dominant and one recessive allele.
In a heterozygous individual, the dominant allele will be expressed, while the recessive allele will not be expressed. However, when the two alleles are codominant, both alleles are expressed and both traits will be present. For example, a heterozygous person with a dominant allele for brown eyes and a recessive allele for blue eyes will have brown eyes, while a codominant individual will have a mixture of both traits.
In conclusion, when an individual receives one dominant and one recessive allele for a trait, they are considered heterozygous. This means the dominant allele will be expressed, while the recessive allele will not be expressed.
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Using the principle of Newton's First Law, why do you think plants orbit the sun?
Answer:
Newton's First Law of Motion states that a body in motion keeps the same motion unless acted upon by an outside force. The force of gravity causes the moving planets to travel in roughly circular orbits around the sun.
hope this helps!!:)
Explanation:
Answer:
The reason why the planets don't collide with the sun is inertia. Inertia is a resistance to movement. The reason why the planets are even orbiting the Sun is that the Sun is pulling the planets in.
How does sexual reproduction reduces the risk of genetic disease?
without data from the base composition studies of chargaff, what might watson and crick’s modeling studies have erroneously concluded?
Without the base composition studies of Chargaff, Watson and Crick's modeling studies might have erroneously concluded that the amount of adenine (A) is equal to the amount of guanine (G) and that the amount of cytosine (C) is equal to the amount of thymine (T) in DNA.
Chargaff's base composition studies provided crucial data on the relative amounts of different nucleotides in DNA. His observations revealed that the amount of adenine (A) is roughly equal to the amount of thymine (T), and the amount of cytosine (C) is roughly equal to the amount of guanine (G) in DNA samples from various organisms.
This discovery, known as Chargaff's rules, laid the foundation for Watson and Crick's modeling studies of DNA structure. Without this data, Watson and Crick might have erroneously concluded that the amounts of A, G, C, and T in DNA are not equal, which would have led to an inaccurate understanding of DNA's structure and the base pairing rules.
Chargaff's base composition studies provided crucial evidence that helped Watson and Crick develop their accurate double helix model of DNA.
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Dan made the table shown to describe two different relationships between animals.
Relationship a: One organism lives inside the organism it feeds off.
Relationship b: No organism is harmed.
Explain.
Which of the following is the best explanation for why the chromosome number is
an even number in each of these organisms?
a. It is only a coincidence; many other organisms have an odd number of
chromosomes.
b. The chromosome number is always even so that when mitosis occurs
each new cell gets the same number of chromosomes.
C. The chromosome number represents pairs of chromosomes, one from
each parent, so it is always an even number.
d. Chromosomes double every time the cell divides, so after the first
division, the number is always even.
Answer:
C
Explanation:
Because one half represents the dad’s chromosomes and the other half is from the mom
(Fill in the blank) In comparing DNA and structural characteristics between plant species, the similarities that appear may indicate a ____________________ __________________between them. (Think of evolution)
Answer:
(Fill in the blank) When comparing DNA and structural characteristics between plant species, the similarities that appear can indicate a genetic adaptation to a particular environment, between them.
Explanation:
The evolution of the spice indicates that there were changes in the environment where these plants were able to adapt genetically, and not only that but they transmitted it in their generations, that is why many manifest the same genetic code, if this gene was inherited among them it means that the species EVOLVED.
Otherwise, those genes that generate benefits for the plants but are not transmitted in the parent plants will not be considered as an evolutionary change of the species but individual of the plant.
The genetic changes produced by modifications in the environment translate into phenotypic changes, thus generating a more suitable species with a greater chance of survival.
stress causes the body to react as in situation of "fight or flight". Please could you pls enlighten me further about this statement?
Fight-or-flight response refers to an organism's response when faced with an acute threat to survival. It is marked with physical changes that include nervous and endocrine changes preparing the organism to react or to retreat.
For example, when a snake faces a predator or a threat, its responses could be crawling away or acting as if it is ready to attack as its defensive displays. It could be through hooding, hissing, and raising the upper portion of their bodies to stand erect.
Which of the following types of models could be used to represent a cell?
a
idea model
b. physical model
С. computer model
d all of the above
Please select the best answer from the choices provided
A
ΟΟΟΟ
Answer:
I would say D- all of the above.
Explanation:
The number of grams of carbohydrates, protein, and fat in foods and beverages determines its number of:_________
The number of grams of carbohydrates, protein, and fat in foods and beverages determines its number of calories (i.e., consumed calories).
What do calories mean?The term 'calories' makes reference to energy obtained by consuming foods, which contain different groups of macronutrients.
The three major groups of these macronutrients include carbohydrates, protein, and fat, which provide 4 calories per gram of carbohydrates or proteins, and 9 calories per gram of fats.
In conclusion, the number of grams of carbohydrates, protein, and fat in foods and beverages determines its number of calories (i.e., consumed calories).
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The adaptations of a pelican include its long, pouch-like beak. Why is the beak of the pelican an example of an adaptation?
A.
The beak is a unique feature that is found only in pelicans.
B.
All birds have beaks, but the beaks vary among different species.
C.
The shape and structure of the beak have remained the same over many generations.
D.
The shape and structure of the beak are inherited and help the pelican survive in its environment
Answer:
D. The shape and structure of the beak are inherited and help the pelican survive in its environment
Explanation:
Hope this helps!
Organic molecules are those that contain at least O carbon O carbon and oxygen O carbon and hydrogen. O carbon, oxygen and hydrogen
Carbon and Hydrogen are present in organic compounds.
What are organic compounds?Organic molecules are those with carbon-hydrogen bonds. The most fundamental organic molecules are hydrocarbons, which are made up exclusively of hydrogen and carbon atoms. Unique chemical and physical characteristics of organic compounds include low melting and boiling points, high solubility in organic solvents, nonconductivity of electricity, isomerism potential, covalent bonding predominance, and flammability. The majority of the foods we eat on a daily basis, including sugar, lipids, starches, vinegar, and others, are essentially organic substances. Although man has been aware of chemical molecules from the beginning of time, it wasn't until the eighteenth century that they really started to be studied! In the year 1807, Berzelius came up with the phrase "organic compound."
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) Discuss how the 3-cell model, El Niño Southern Oscillation, and the Madden-Julian Oscillation are related to each other. Your discussion should include locations, what each of these are, and how they all impact each other
b) Name two local influences on climate that can be more influential than a location’s position in the 3-cell model. Describe how and why these local influences impact the climate.
c) Do ENSO and the MJO impact hurricane activity? If yes, why? If no, why not?
The 3-cell model, ENSO, and the MJO are interconnected phenomena that impact each other and play crucial roles in shaping regional and global climate patterns. Topography and ocean currents are two local influences on climate that can be more influential than a location's position in the 3-cell model. ENSO and the MJO do impact hurricane activity, with El Niño and the active phase of the MJO suppressing hurricane activity, while La Niña and the inactive phase of the MJO can enhance it.
The 3-cell model, El Niño Southern Oscillation (ENSO), and the Madden-Julian Oscillation (MJO) are all related to each other and impact each other in different ways.
1. The 3-cell model refers to the global atmospheric circulation pattern that divides the Earth into three cells: the Hadley cell, the Ferrel cell, and the Polar cell. These cells are responsible for the movement of air and transfer of heat from the equator to the poles. They play a significant role in determining regional climate patterns and wind systems.
2. El Niño Southern Oscillation (ENSO) is a climate pattern that occurs in the tropical Pacific Ocean. It involves the interaction between the ocean and the atmosphere, resulting in a warming or cooling of sea surface temperatures in the eastern tropical Pacific. This phenomenon has a major impact on weather patterns worldwide, affecting rainfall distribution and temperatures.
3. The Madden-Julian Oscillation (MJO) is an eastward moving disturbance that travels around the equator. It is characterized by a large-scale, eastward-moving area of enhanced and suppressed rainfall. The MJO has a significant influence on tropical weather and can affect precipitation and atmospheric circulation patterns in various regions.
These three phenomena are related in that they all involve large-scale atmospheric and oceanic processes. For example, during an El Niño event, the warming of sea surface temperatures in the eastern tropical Pacific can disrupt the normal trade winds and atmospheric circulation patterns associated with the 3-cell model. This disruption can, in turn, affect the behavior and strength of the MJO.
b) Two local influences on climate that can be more influential than a location's position in the 3-cell model are topography and ocean currents.
Topography refers to the physical features of the land, such as mountains, valleys, and coastlines. These features can greatly influence climate by affecting the distribution of precipitation, temperature, and wind patterns. For example, mountain ranges can block the flow of air masses, leading to differences in rainfall on the windward and leeward sides.
Ocean currents play a crucial role in climate regulation. They transport heat from the tropics to higher latitudes and influence regional temperature and precipitation patterns. For instance, the Gulf Stream, a warm ocean current, influences the climate of the eastern coast of the United States, making it warmer than other regions at similar latitudes.
c) Yes, ENSO and the MJO can impact hurricane activity.
During an El Niño event, the warming of sea surface temperatures in the eastern tropical Pacific can alter atmospheric conditions, leading to the suppression of hurricane activity in the Atlantic Basin. El Niño creates stronger wind shear, which makes it difficult for hurricanes to form and intensify. On the other hand, La Niña, the cold phase of ENSO, can enhance hurricane activity in the Atlantic.
The MJO can also influence hurricane activity. When the MJO is in its active phase, it can create more favorable conditions for tropical storm development, such as increased moisture and decreased wind shear. Conversely, during the inactive phase of the MJO, hurricane activity tends to be suppressed.
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6. Potential energy converts to Kinetic energy and Kinetic energy will convert to
Potential energy. Why does the total energy stay the same? *
The energy is not being created or destroyed: only transformed.
Total energy does not stay the same as some is always lost as heat.
Ο Ο
Energy stays the same because the energy has no where to go but in a system.
Answer:
The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. ... Once the potential energy locked in carbohydrates is converted into kinetic energy (energy in use or motion), the organism will get no more until energy is input again.
Do clams have eyes?.
What method does NOT kill bacteria?
a
Refrigeration
b
Chemical disinfectants
c
Boiling
d
Alcohol
Explanation:
Refrigeration doesn't kill bacteria- it just slows their growth
Another random Question to get whoever 50 Pts!!!!
whats your favorite animal and why
mine is lions because they are very fierce yet majestic in a way
alright your turn
Answer:
mine is a sheep
Explanation:
they’re cuddly and innocent, but my favorite part about them is that they stick together
enzyme involved in dna replication that joins individual nucleotides to produce a dna molecule. true or false
The statement is true. The enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule is called DNA polymerase.
It is responsible for catalyzing the formation of phosphodiester bonds between adjacent nucleotides, which creates the sugar-phosphate backbone of the DNA molecule. During DNA replication, the two strands of the DNA double helix are separated, and each strand serves as a template for the synthesis of a new complementary strand. The DNA polymerase adds nucleotides to the 3’ end of the new strand, using the base pairing rules (A with T and C with G) to ensure accurate replication. Once the new strand is complete, the DNA polymerase proofreads the sequence to detect and correct any errors in the newly synthesized strand. Overall, DNA polymerase is a crucial enzyme in DNA replication, as it ensures the accurate copying of genetic information from one generation to the next.
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What two recurring events in earth history have impact on the carbon cycle
Answer:
Answer:
a. Earth’s orbit and climate change
Explanation:
Over the years, the carbon cycle has seen changes in response to climate change. The amount of energy has varied in comparison to the changes is the earth’s orbit. The development of ice ages has seen a slowdown in the carbon cycle.
Similarly, temperature variations and climate changes initiated by the burning of fossil fuels have deeply impacted the carbon cycle by increasing the ratio of carbon dioxide in the atmosphere causing global warming. Therefore, the earth’s orbit and climate change are two recurring events in the Earth’s history that have impacted the carbon cycle.
Explanation:
can someone plz help me
Answer:
3
Explanation:
bc that is the cell wall, which only plants have
YALL THIS IS SO FREAKING HARD
WHAT DAY IS IT?
Answer:
Today is Monday, November 16, 2020.
It can be written as 11/16/2020 or 11/16/20.
It is the 321st day of the year out of 365 days.
Which statement about how geologists study the ages of rock layers is true?
The law of superposition means that older rocks are on top.
Geologists can find the exact age of a rock by looking at its relative position.
The principle of original horizontality provides the basis for the law of superposition.
Relative age can be determined by using the concept of unconformity.
Answer: The principle of original horizontality provides the basis for the law of superposition.
Explanation:
The law of superposition in geology suggests that the rocks or sediments which are newly formed due to erosion and sedimentation of the original rocks lie above the old material. This law is supported by the principle of original horizontality according to which the newly formed sediments suspend horizontally in the layers of rocks and sediments under the effect of gravity. Thus an horizontal strata distinguishes the old and the new material.
Answer:
c
Explanation:
I took the quiz and got it right
Which of the following is NOT true of anaerobic metabolism? a It is relied upon for high-intensity, short-duration activities like sprinting. b It occurs in the cytosol of cells. c Its primary fuel is fat. d It doesn't require oxygen.
Answer: The option that is NOT true is:
C. Its primary fuel is fat.
Explanation:
Anaerobic metabolism does not primarily rely on fat as its fuel source.
The correct answer is Option (c)
Option (c) Its primary fuel is fat, which is NOT true of anaerobic metabolism.
Let's delve into the topic by breaking down the words anaerobic, which gives us an-aerobic.
Aerobic refers to anything, which involves the presence of air, or more specifically oxygen. Thus any aerobic activity would involve the presence and usage of oxygen for its necessary functions.
Anaerobic would thus mean any activity which doesn't require the presence of oxygen.
Anaerobic metabolism defines the process by which cells, without the presence of oxygen, produce energy for their work. When the supply of oxygen is limited, cells opt for this alternative pathway to produce energy to keep themselves running.
Here, the breakdown of glucose occurs even in limited oxygen to give us ATPs (Adenosine Triphosphate), the energy currency of the cell.
Coming back to the question, we go through the options one by one.
During high-intensity activities like sprinting or heavy exercise, your lungs don't work fast enough to provide the body with enough air. Thus the glucose gets decomposed without the presence of oxygen to give the body the energy it needs through anaerobic respiration.
Thus, option A is correct.
Anaerobic respiration or metabolism occurs in the fluid part of the cell known as the cytosol, due to the availability of a suitable environment for chemical reactions.
Thus option B is correct.
Anaerobic metabolism doesn't require oxygen, as discussed before.
Thus option D is correct.
But, the primary source of fuel for running anaerobic chemical reactions is not fat, but glucose which breaks down to give ATP.
Thus, option C is incorrect.
Thus, the answer to the question is option C.
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Label the following statements as either true or false.
Some enzymes remove single amino acids from proteins by beginning at the amine or N-terminus.
a. True
b. false
It's true some enzymes remove single amino acids from proteins by beginning at the amine or N-terminus.
How enzymes work ?Enzymes play a crucial role in reducing a reaction's activation energy, or the amount of energy required for the reaction to start. Enzymes function by attaching to reactant molecules and holding them so that chemical bond-forming and bond-breaking reactions proceed more quickly.
How do enzymes work in digestion ?The breakdown of the food you eat is greatly aided by digestive enzymes. These proteins quicken chemical processes that change nutrients into things your digestive system can absorb. Digestive enzymes are present in your saliva. Your pancreas, gallbladder, and liver are a few of the organs that release them.
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The biochemical functions of vitamin A include all of the following except
a. controlling vision in dim and bright light
b. development and maintenance of mucus-forming cells
c. cell differentiation
d. coenzyme synthesis
The body uses coenzymes, which are tiny molecules that help enzymes catalyze biological reactions, but vitamin A is neither a precursor nor a constituent of any recognized coenzymes. The right response is coenzyme synthesis (d).
The body needs vitamin A for a number of metabolic processes. It is a crucial part of the visual pigment rhodopsin in the retina, which regulates vision in both dim and strong light (option a).
Also, it contributes to the growth and upkeep of mucus-producing cells, which are crucial for lubricating and defending numerous tissues and organs (option b).
In addition, vitamin A is important for cell differentiation, the process through which cells specialize and take on certain roles during tissue maintenance and development (option c). Nevertheless, the production of coenzymes does not directly include vitamin A.
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what is the role of enzyme in breaking down molecules
Answer:
Some enzymes help break large molecules into smaller pieces that are more easily absorbed by the body. Other enzymes help bind two molecules together to produce a new molecule. Enzymes are highly selective catalysts, meaning that each enzyme only speeds up a specific reaction.
what are the functions of spliceosomes in rna splicing?they remove the poly(a) tails from pre-mrnas and join the resulting mature mrnas.they remove intervening exons between introns and join the resulting ends of the introns.they remove intervening 5' caps between exons and join the resulting ends of the exons. they remove intervening introns between exons and join the resulting ends of the exons.they remove the introns from pre-mrnas and join the resulting mature mrnas.
The functions of spliceosomes in RNA splicing are to remove intervening introns between exons and join the resulting ends of the exons.
The functions of spliceosomes in RNA splicing are to remove intervening introns between exons and join the resulting ends of the exons, as well as to remove intervening exons between introns and join the resulting ends of the introns. In addition, spliceosomes also remove 5' caps between exons and join the resulting ends of the exons. They do not remove the poly(A) tails from pre-mRNAs. Overall, spliceosomes play a crucial role in generating mature mRNA molecules by precisely removing introns and joining exons together.
The primary function of spliceosomes in RNA splicing is to remove intervening introns between exons and join the resulting ends of the exons. This process leads to the formation of mature mRNAs, which can then be used for protein synthesis.
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What is a single stranded molecule used
to move genetic information from the
nucleus to the cytoplasm?
A. mRNA
B. DNA
C. NNA
Answer: A)
Explanation: it's job is transportation of genetic info.
hope it helps :)
which of the four basic tissue types form coverings or linings of organs?
Why is silicon a desirable work material in microsystem
technology? (3)
Silicon is a desirable work material in microsystem technology due to its unique electrical and mechanical properties, which allow for its integration into a wide variety of microelectronic devices, sensors, and microsystems.
Silicon's electrical properties allow for precise control of electronic signals, making it an ideal choice for a wide range of electronic devices, including transistors, diodes, and microprocessors. Silicon's high electron mobility and low power consumption also make it a preferred material for microelectronic devices.
In addition to its electrical properties, silicon is also an ideal material for microsystem technology due to its mechanical properties. Silicon is a hard, brittle material, which makes it ideal for the fabrication of microelectromechanical systems (MEMS). Silicon's high tensile strength also allows it to withstand the stresses and strains of microfabrication processes, making it an ideal choice for the fabrication of micromachined structures.
Silicon's unique properties make it a desirable work material in microsystem technology, allowing for the fabrication of complex and precise microelectronic devices and systems that are essential to modern electronics and communication systems.
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