Both internal and external factors are capable of regulating the cell cycle of a specific type of cell (Option a).
What is the cell cycle?The cell cycle refers to the period of life of a cell from which it is generated until its division (cytokinesis).
The cell cycle of a cell is regulated by internal factors such as cyclins and kinases that phosphorylate specific proteins as well as external factors that trigger the cell division (e.g. temperature conditions).
In conclusion, both internal and external factors are capable of regulating the cell cycle of a specific type of cell (Option a).
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What is a scientific explanation of a law?
A. an idea that can't be proven but can explain some phenomena
B. a statement based on repeated experiments and observation that can predict what will happen
C. an educated hypothesis that is supported with evidence
D. a hypothesis that can be tested
Answer:
It is B
Explanation:
A statement based on repeated experiments and observation that can predict what will happen
a scientific explanation of a law is a statement based on repeated experiments and observation that can predict what will happen. Hence option B is correct.
What is Law in Physics ?Scientific laws, often known as rules of science, are assertions that explain or predict a variety of natural events based on repeated tests or observations. In several circumstances (approximate, exact, wide, or limited), the term law is used differently across all domains of natural science (physics, chemistry, astronomy, geoscience, biology). Laws are derived from facts and can be further refined through mathematics; in all cases, they are founded on empirical evidence, either directly or indirectly. It is widely assumed that they implicitly reflect, though do not overtly claim, underlying causal linkages in reality and are found rather than constructed.
Physics laws are, by definition, stated facts that have been inferred and drawn from empirical data. Simply said, the world around us operates in a specific manner, and physical laws are a means of categorizing that operation.
Hence option B is correct.
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which function in ms excel must begin with which calculations sign
All formulas in Excel must begin with an equals sign (=).
This is the case because both the formula and the value it calculates are present in or equal to the cell.
What are the main functions of ms excel?
An Excel function is a pre-written formula that facilitates the completion of mathematical, statistical, and logical tasks. When you are comfortable using a function, all you need to do is enter an equal sign (=) in the cell, the function's name, and the cell range it applies to.
IF function; Using Excel's IF function, two values are logically compared. Either TRUE or FALSE is the outcome of the IF function. For instance, we can determine whether cell B2's value exceeds cell A2's value. If so, the outcome is TRUE; otherwise, it is FALSE.Text Functions: If you work with data that contains text, the functions listed below will help you work more effectively.VLOOKUP function; Vertical Lookup is referred to as VLOOKUP. It is a function that instructs Excel to look in a column (the so-called "table array") for a specific value in order to retrieve a value from another column in the same row. You will learn how to use the VLOOKUP function from this tutorial.Date functions: One of the main components of data that you use every day is dates, which you may utilize to better evaluate your data.MATCH function; The relative location of a value is returned by the MATCH function after searching for it in a range of lineair cells.Time Functions: Time can appear in data just like dates do, and you can use time functions to work with data that contains time values.Logical Functions: You can use logical functions to build some of your spreadsheet's most useful formulas.Statistical Functions: One of Excel's best features is the abundance of statistical functions available for quick data analysis.Information Function: You can use these particular functions to learn more about the values you provided.Financial Functions: You may easily perform some of the common yet crucial financial calculations with these functions.To learn more about Function of ms excel, refer to:
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Proper functioning of our digestive system is due to the presence of
Proper functioning of our digestive system is due to the presence of Fiber/roughage in our diet.
Explanation:The consumption of roughage, or fiber, has long been recommended as a way to alleviate digestive issues, such as constipation. However, it also plays a number of other critical roles in the body as well. As an example, plant foods are rich in fiber that can promote optimal gut health, keep you at a healthy weight, and even reduce your risk of heart disease. This is because they provide a healthy source of roughage.
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The Montreal Protocol ________.
Answer:
The Montreal Protocol, finalized in 1987, is a global agreement to protect the stratospheric ozone layer by phasing out the production and consumption of ozone-depleting substances (ODS).How would breathing be affected if a bullet makes a hole in the thoracic cavity?
If a bullet makes a hole in the thoracic cavity then that can cause air to enter the pleural cavity directly from the outside.
The second-largest hollow region in the body is the thoracic cavity, often known as the chest cavity. The sternum, or breastbone, the spinal column, and the ribs encompass it. The diaphragm, a muscular and membrane wall, separates it from the abdominal cavity, the body's largest hollow region.
Organs and tissues that are involved in the immune (thymus), cardiovascular (heart, pericardium, great vessels, lymphatics), nervous (vagus nerve, sympathetic chain, phrenic nerve, recurrent laryngeal nerve), respiratory (lungs, bronchi, trachea, pleura), and digestive (oesophagus) systems are found in the thoracic cavity.
The sternum, ribs, thoracic vertebrae, and diaphragm all surround the area of the thoracic cavity. The mediastinum and the chest cavity, where the lungs are located, comprise one compartment.
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differentiate between alimentary canal and digestive system
Explanation:
The digestive system runs from the mouth, gullet, stomach, liver, pancreas, duodenum/upper small intestine, ileum/ lower small intestine, large intestine, appendix, rectum and anus. However the alimentary canal has all the above features except for the liver and pancreas
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What type of infection caused the most deaths in 1999?
A. Measles
B. HIV/AIDS
C. Malaria
D. Respiratory infection
Respiratory infection caused the most deaths in 1999.
The proportion of respiratory samples that tested positive for influenza peaked during the 1999–2000 flu season at 33%, while the state and territorial epidemiologists' reports peaked at 44 states reporting either regional or widespread influenza activity. It was originally discovered in military soldiers in the US in the spring of 1918. One third of the world's population, or roughly 500 million people, are thought to have contracted this virus. The lungs, nose, and throat are affected by the flu. High-risk groups include young children, elderly individuals, pregnant women, persons with chronic illnesses, and those with weakened immune systems.learn more about Respiratory infection here: https://brainly.com/question/2526467
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Organisms can display explosive population growth called __________ when resources are abundant and there is no competition.
HELP ME Which property describes a mixture?
It cannot be separated by physical methods.
It has a single chemical composition.
It cannot have more than one state of matter.
It cannot be described by a chemical symbol or formula.
A mixture cannot be described by a chemical symbol or formula.
What is a mixture?A mixture is a substance that consists of 2 or more chemically different substances.
Examples of mixtures are sand and salt, water and kerosine, oil and water, etc.
Each substance in a mixture maintains its chemical identity. In other words, components of mixtures do not react with each other.
Thus, the components of mixtures can be recovered using relevant separation techniques.
Mixtures can be homogenous when the different components are uniformly distributed. They can also be heterogenous when the components are skewed to a specific side of the mixture.
Due to the fact that the chemical identity of the components of mixtures remains, it becomes impossible to assign a chemical symbol or formula to mixtures.
Therefore, mixtures can only be named according to the different components but cannot be assigned chemical symbols or formulas.
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Which are the main parts of a flowering plant? Select four options. seeds roots stem leaves flowers
Answer:
Flowers stem leaves roots.
Explanation:
The main parts of a flowering plant are flowers stem leaves root.
PLEASE MARK ME AS THE BRAINIEST .
Bb mates with BB?
Select one:
O a. All of the offspring will exhibit the
recessive trait.
O b. The dominant trait will show up in
about 75% of the offspring.
O c. All of the offspring will exhibit the
dominant trait.
O d. The recessive trait will show up in
about 50% of the offspring.
In complete dominance, the dominant alleles hide the expression of the recessive allele. Option C. All of the offspring will exhibit the
dominant trait.
What is complete dominance?
Complete dominance occurs when one of the alleles -the dominant one- completely hides the expression of the other allele -the recessive one- in heterozygous individuals.
Cross: BB x Bb
Gametes: B B B b
F1)
50% of the progeny will be homozygous BB
50% of the progeny will be heterozygous Bb
100% of the progeny will express the dominant trait.
The correct option is C. All of the offspring will exhibit the dominant trait.
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a student investigates the effect of different fertilizers on tomato plant growth. Identify the dependent, independent and controlled variables in her experiment.
Based on the nature of variables in the experiment:
plant growth is the dependent variablefertilizers is the independent variableSoil type and amount of sunlight is the controlled variablesWhat are variables?Variables in an experiment are those factors which are under the control of the researcher and in which changes in them result in changes in the result of the experiment.
In an experiment in which a student investigates the effect of different fertilizers on tomato plant growth, the various variables are given below:
plant growth is the dependent variable - this variable depends on a change in the independent variablefertilizers is the independent variable - changes in this variable results in changes in plant growthSoil type and amount of sunlight is the controlled variables- this variable is constant.In conclusion, tomato plant growth is dependent on the type of fertilizer.
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What is the dependent variable that impacts the amount of solar energy in a location?
A. Latitude
B. Longitude
C. Prime meridian
D. Equator
Given the sequence of acgtat, read in the 5’ → 3’ direction, what would be the sequence of the opposite strand, read in the 5’ → 3’ direction? is this dna or rna?.
Answer:
The strand would read ATACGT, and it's DNA.
Explanation:
It's the reverse compliment, and as DNA is antiparallel, you would just list the nucleotide sequence corresponding to the backwards order of the original sample. This is a double strand, since there is an opposite strand, which means it is DNA.
Which describes a transplant using healthy bone marrow cells from a compatible donor?
Answer:
Allogeneic transplants involve the use of cells from a donor.
List the pathway of an oxygen gas molecule from the surrounding air through the respiratory system to the blood. Just list the names of the respiratory structures involved,
The names of the respiratory structures involved include the following: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli.
What is respiration?Respiration is defined as the oxygenation of blood through the intake of oxygen and the removal of carbon dioxide.
The pathway of oxygen gas molecule from the surrounding air through the respiratory system to the blood include respectively the following:
Nasal cavities (or oral cavity): This has a direct association with the outside oxygen from the environment.pharynx: This so also called the throat.trachea: This is also called the wind pipe.Primary bronchi (right & left): This divides from the trachea to form two bronchi.Secondary bronchi:Tertiary bronchi:bronchioles:alveoli.Learn more about respiration here:
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Which of the following are dangers of Climate change?
I. Disease carrying insects could multiply and spread to new areas
II. The number of floods could increase
III. Due to increased humidity, electricity would be harder to generate and more expensive
IV. Severe droughts could occur
A. II and IV
B. I and III
C. I, II, IV
D. II, III, IV
Answer: D
Explanation:
The following are the dangers of climate change are
I. Disease carrying insects could multiply and spread to new areas.
III. Due to increased humidity, electricity would be harder to generate and more expensive.
IV. Severe droughts could occur.
The correct option is D.
What is climate?Climate is the weather of a place for a long time. Like, the climate of Antarctica is always cold, and the oceans are always frozen. There are different climates in different areas.
Climatic changes are the long term effects that are changing the normal temperature and climatic conditions of an area. This is causing problems with the biotic factors of the area.
Like, the warming of Antarctica is increasing, which is resulting in the melting of ice, which can cause high floods.
Thus, the correct option is D. II, III, IV.
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Putting a prescription on file allows the prescription to be filled electronically and a ) charges the insurance company , but doesn't fill the order . b ) charges the insurance company , but sends the filled prescription to the patient's physician . c ) charges the insurance company , fills the order , but holds it until needed . d ) doesn't charge the insurance company or fill the order .
Putting a prescription on file allows the prescription to be filled electronically and sets the insurance company , but sends the filled prescription to the patient's physician.
What is the process of filling a prescription?
The prescription fill process has five detailed steps. They include input & initial check, therapeutic check, preparation, technical review and supply and educate. These focus on an objective and precise prescription filling process that is safe and legal for both the client and the pharmacist.
What is the main advantage of an electronic prescription?
E-prescribing also helps to make patient care more efficient. It simplifies the process of getting the medication to the pharmacy, dispensing the medication, and getting refills. Because the patient is not given a hard copy of the medication, the possibility for losing the prescription is eliminated.
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A
B
C
D
look at the picture
Answer:
c
Explanation:
because the curves are and the d line is poiting b and c
Why oxygen to form oxyhemoglobin but not haemoglobin oxide
Oxygen will form oxyhemoglobin and not hemoglobin oxide because it is referred to as a`protein which binds to oxygen atoms in the blood.
What is Hemoglobin?This refers to a protein in the body which carries oxygen molecules to various parts of the body. This is as a result of the compound which is referred to as heme which is responsible for the high affinity for oxygen. It ensures oxygen is distributed to other parts of the body.
On the other hand, formation of oxides means that a chemical reaction occurred with oxygen. There is however no chemical reaction formed as a result of this affinity which is why there is no formation of hemoglobin oxide in this specific type of scenario in the body system.
This therefore is the reason why oxygen forms oxyhemoglobin but not hemoglobin oxide and makes it the most appropriate choice.
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Which of the following is an example of a density dependant factor?
A. Industrial pollution in a river
B. An herbivore species and a carnivore species sharing a habitat
C. 3 different herbivore species sharing the same field
D. A volcanic eruption
Three different herbivore species sharing the same field is an example of a density dependent factor (Option C).
What are density dependent factors?The density-dependent factors are those variables that affect the growth of a population regarding the number of individuals in such population.
Density-dependent factors include, among others, competition within the population or between populations, the presence of predators, etc.
In conclusion, Three different herbivore species sharing the same field is an example of a density dependent factor (Option C).
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Give an example of a good hypothesis, and explain why a hypothesis is important.
Explanation:
it ensures the entire research methodologies are scientific and valid
Which of the following is NOT true of Fungi?
A: Includes molds, mushrooms, and yeasts.
B: Fungi have cell walls made of chitin.
C: Fungi are a kingdom in the domain Protista
D: Most fungi are multicellular.
Fungi is a separate kingdom which include all the species such as molds, mushrooms, and yeasts. Fungi have a cell wall which is made up of chitin. Most of the fungi are multicellular. Thus, the correct option is C.
What are Fungi?Fungi is a separate kingdom of the five kingdom classification. A fungus is any member of the eukaryotic organisms which includes microorganisms such as yeasts and molds, as well as the mushrooms.
Fungi are the eukaryotic, non-vascular, non-motile, and heterotrophic organisms. Fungi may be unicellular or filamentous. Fungi reproduce through the means of spore formation. Fungi exhibit the phenomenon of alternation of generation. Fungi lack chlorophyll pigment and hence cannot perform photosynthesis like plants.
Therefore, the correct option is C.
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Internal capsule is part of which pathway,motor or sensory?
The Internal capsule is part of the motor pathway and is therefore denoted as option A.
What is Internal capsule?This is characterized by a a white matter which is located in the inferomedial part of both cerebral hemisphere of the brain. The brain serves as the control center of the central nervous system which comprises of a rich network of neurons interconnected together for prompt response to different types of stimuli.
The internal capsule however functions together with the pyramidal motor pathway during the processing of different types of stimuli and information hence it being chosen as the most appropriate choice.
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importance of protein in metabolism
Answer:
Protein is also used for growth and repair. Amid all these necessary functions, proteins also hold the potential to serve as a metabolic fuel source. Proteins are not stored for later use, so excess proteins must be converted into glucose or triglycerides, and used to supply energy or build energy reserves.
Which of the following would NOT affect a baby's size?
A. Both parents are very small.
B. The father eats poorly during the pregnancy.
C. Mother smokes while pregnant.
D. The mother eats poorly during the pregnancy.
Reset Selection
Answer:
B
Explanation:
What the father eats would not affect the size of a baby
Why human, monkey, horses and birds are considered to have evolved from the same ancestors?
Answer:
Everything at some point belonged to a common ancestor, but these four species are considered to be like this because of similar ancestral traits that have been passed on to generations such a homologous pairs, vestigial structures, they are all mammals, similar amino acid sequences, vertebraes, etc.
How does mitochondrial structure contribute to aerobic metabolism, particularly in the integration of the citric acid cycle and electron transport?.
The reduced electron carriers generated by the citric acid cycle are restricted to the matrix by mitochondrial structure. There, they are adjacent to the respiratory complexes of the electron transport chain, which will transfer the electrons from the carriers made by the TCA cycle to oxygen, the final recipient of electrons and hydrogens.
What is the role of mitochondria in the citric acid cycle and electron transport chain?
Citric Acid Cycle:
The pyruvate molecules generated at the conclusion of glycolysis are carried into mitochondria, which are locations of cellular respiration, in eukaryotic cells. By eliminating a carbon dioxide molecule in the mitochondria, pyruvate is converted into a two-carbon acetyl group, which is then taken up by the carrier substance coenzyme A. (CoA). The end product is known as acetyl CoA.
The citric acid cycle occurs in the matrix of the mitochondria in eukaryotic cells. The eight phases of the cycle are a sequence of chemical processes that result in the production of two molecules of carbon dioxide, one molecule of ATP, and the reduced versions of NAD+ and FAD+, known as NADH and FADH2, which are crucial coenzymes for cell function. Because the NADH and FADH2 generated must transport their electrons to the system's next pathway, which uses oxygen, part of this is regarded as an aerobic pathway. This transmission is not possible without oxygen.
Electron Transport Chain:
However, the majority of the ATP produced during the aerobic breakdown of glucose does not come from these mechanisms. Instead, it results from a procedure that starts with the transfer of electrons through a series of chemical events to an ultimate electron acceptor, oxygen. Both eukaryotic organisms' mitochondrial inner membranes and prokaryotic organisms' inner cell membranes contain specific protein complexes where these processes occur. A gradient of electrochemistry is produced across the inner mitochondrial membrane by harnessing the energy of the electrons. ATP is produced using the potential energy of this gradient. This entire procedure is known as oxidative phosphorylation.
The sole aspect of metabolism that employs ambient oxygen is the electron transport chain, which is the final stage of aerobic respiration. The electron transport chain is made up of the aggregation of the four protein complexes I through IV as well as any related mobile, accessory electron carriers.
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Which of the following is true of rods?
Multiple Choice
O
More numerous than cones.
Concentrated in the macula lutea.
Sensitive to wavelengths of light corresponding to colors of red, green, and blue.
Not helpful for night vision or in dim light.
Answer: A - Rods are more numerous than cones
Explanation: Rods are found everywhere in the retina except the fovea (a tiny pocket in the retina where just about all of the cones are located).
B. The macula lutea is another word for fovea, no rods are found there.
C. Rods are utilized in low-light conditions and are not sensitive to wavelengths of light.
D. Cones are responsible for perceiving color and not rods.
E. The main function of the rods is to help us see in low-light conditions (scotopic vision), so this answer would be incorrect.
Which theory is most widely accepted in describing the formation of our universe?
the Big Bang Theory
the Singularity Theory
the Steady State Universe
che Eternal Inflation Theory
Answer:
The Big Bang Theory.
Explanation:
The Big Bang Theory is the most widely accepted hypothesis for the origin of the universe as we know it. It's implications are somewhat vague, as there is no concrete way to determine what really happened to create our universe, but it still holds water.
The basics of the Big Bang Theory is that a singularity was formed, a very small ball with infinite density and unimaginable heat. This singularity's expansion is what created the universe, essentially, a big bang.