How is pH measured?
A. It is based on a scale of o to 14.
B. It is a percentage between 1 and 100.
C. It is a level between 1 and 4.
D. It is a decimal between 0 and 1.

Answers

Answer 1
A. it is based on a scale of 0 to 14

Related Questions

Within a plant cell, the glucose formed as a result of
photosynthesis may be used directly as
1) an energy source during cellular respiration
2) an enzyme for intracellular digestion
3) an absorber of radiant energy
4) a source of molecular oxygen

Answers

Answer:

an energy source during cellular respiration

How do the process of DNA replication and the laws of inheritance help cells and individuals pass on their
traits?

Answers

DNA copying is otherwise known as DNA replication which is the process of producing 2 identical copies of DNA from one original DNA molecule during cell division. DNA copying is important because it generates variation during sexual reproduction which leads to evolution. Also, DNA copying helps in transfer of information or characters from the parents to the offsprings.

Mendel studied traits with only one mode of inheritance in pea plants. The inheritance of the traits he studied all followed the relatively simple pattern of dominant and recessive alleles for a single characteristic. There are several important modes of inheritance, discovered after Mendel’s work, that do not follow the dominant and recessive, single-gene model.

hope it helps

can squirrels get cats pregnant?!?!?! please answer quickly :/

Answers

Answer:

i don't think so...they are different species?

why would you even need to know that?

Answer:

No

Explanation:

A squitten is a cat with a genetic deformity which causes a partial formation or complete absence of the radius bone making it resemble a squirrel. These cats should be kept indoors and seen to by specialist veterinarians, as long term management of the condition is essential for quality of life in these cats.

A- Briefly describe the biotechnology methods that would have been used to produce these results.

B- How are the bands from the jeans and the shirt similar? How are they different?

C- Based on these results, what conclusions might a prosecutor present to a jury during a criminal trial?

Answers

Answer:

a. teh use of a electrophoresis machine after the dna has been processed using enzymes would give the bands shown on the gel

b.the bands from teh jeans and shirt show that the shirt was made from materials taht include teh material the jeans were made from

c. a prosecutor may conclude to the jury that the defendant had blood only on their shirt

I point
Bactrian camels, drcanedarves, llamas, and alpacas are all members of the same taxonomic farníly, Camelidae. Members of this family all have two tores, no homes,
true canine teeth, and a split upper lip. The family Camelidae originated in North America. The physical features of animals in this family and the family's
goopraphical origin provide evidence that all these animals -
have slowly evolved to become herbivores
live in the same type of ecosystem
have a common ancestor
exchanged DNA at some point in the past

Answers

Answer:

Have a common ancestor

Explanation:

All of these animals share many distinct traits ,while being in many different areas of the world

Based on the article "Will the real atomic model please stand up?," why did J.J. Thomson experiment with cathode ray tubes?​

Answers

Answer:

To determine that electric beams in cathode ray tubes were actually made of particles

Explanation:

I hope this is correct, if it isn't then feel free to let me know and I will correct it. I'm sorry in advance if it is incorrect.

Does a virus have an independent lifecycle?

Answers

The virus life cycle could be divided into six steps: attachment, penetration, uncoating, gene expression and replication, assembly, and release.

If both maize and teosinte are grown in the wild, which species is more likely to proliferate? Why?

Answers

Answer:

he maize is more likely to proliferate because of the human effect.

Explanation:

If both maize and teosinte are grown in the wild, teosinte is more likely to proliferate. This is because teosinte has certain adaptations that make it better suited to the wild environment.

What are maize and teosinte?

Maize and teosinte are both members of the grass family, but they differ in several important ways. Maize, also known as corn, is a domesticated crop that has been selectively bred over thousands of years to produce larger, more desirable ears for human consumption. Maize has a much larger ear size than teosinte, and its kernels are also larger and more closely packed together.

Hence, if both maize and teosinte are grown in the wild, teosinte is more likely to proliferate. This is because teosinte has certain adaptations that make it better suited to the wild environment.

Learn more about maize and teosinte here.

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A pair of butterflies reproduces and has one thousand offspring. All one thousand of the offspring have the alleles Aa. What is the most likely combination of alleles (genotype) for each parent? Explain your answer.

Answers

Answer:

It is expected that each parent is homo-zygous for each trait (i.e., one parent has genotype AA and the other parent has genotype aa)

Explanation:

An F1 hybrid is the first filial generation of the progeny of distinctly different parental types. In this case, it is expected that each parent is homo-zygous for each trait, thereby 100% of all offspring will have genotype Aa (i.e., parental cross: AA x aa >> F1 = 100% Aa). On the other hand, in a cross where one parent is heterozygous for the trait (Aa) and the other parent is homo-zygous (either AA or aa), only 50% of all offspring will have genotype Aa.

Bakit mahalagang isabuhay ang pangangalaga sa kalikasan at ano ang mga kakayahang mayroon ka upang maisabuhay ito?​

Answers

Explanation:

The primary motivation for conservation and is to conserve wildlife and maintain biodiversity. Safeguarding wildlife and environment and conserving it for future generations ensures that the species we care about do not become extinct. The preservation of such ecosystems aids in the protection of the overall ecosystem.

When 2 or more organisms compete for the same resource there can be a variety of outcomes. What would be one of those outcomes?

Answers

Answer:

The biology branch deals with the relations between and physical environment of organisms.

Explanation:

The principle of competitive exclusion states that if two species occupy the same niche, they cannot exist together (competing for identical resources). Two species whose niche overlap can evolve to have different niches through natural selection, resulting in the distribution of resources.

In ecology, interspecific competition is a form of competition where individuals from different kinds compete in an ecosystem for the same resources (e.g. food or space)... There may be interspecific competition if people of two separate species share a limited resource within a single area.

Glucose is a molecule that can move across the cell membrane. If the
concentration of glucose is higher outside the cell than inside the cell, then
what will happen by the process of diffusion?
Yea so what do i do?

Answers

The glucose will diffuse into the cell by the process of diffusion.
Hope it helps :)

Answer:

The right answer is B. Glucose molecules will diffuse out of the cell

Explanation:

Diffusion refers to the natural tendency of a system to homogenize the concentrations of chemical species within it.

What does gene mutation mean?

Answers

Answer:

Gene mutation are changes in single DNA bases or small intragenic delentions and rearrangements.

1) What is the control group? 2) What is the experimental group? 3) What is the independent (manipulated) variable? 4) What is the dependent (responding) variable? 5) What should Tina's conclusion be?

Answers

Complete question:

Tina asks the question “Does caffeine increase the heart rate of an earthworm?” In Test 1, she measures the heart rate by looking at the earthworm under a microscopes, the earthworm has a heart rate of 50 bpm (beats per minute). In Test 2, she places a few drops of caffeine on the earthworm’s skin and measures the rate again. In this test, the heart rate is 68 bpm.

1) What is the control group?

2) What is the experimental group?

3) What is the independent (manipulated) variable?

4) What is the dependent (responding) variable?

5) What should Tina's conclusion be?

Answer:

Individuals from test 1Individuals from test 2CaffeineHeart rateTina´s hypothesis is correct. Caffeine increases the heart rate of an earthworm.  

Explanation:

During an experiment, data from an experimental group is compared with the data from a control group. Both groups are selected from the same pool or population, so they are identical in all aspects except for the independent variables.  

The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment.

The experimental group is the one affected by the experimental procedure or treatment. The researcher voluntarily changes the independent variables in the experimental group to observe how they affect the group under study. These variables are kept constant in the control group, not influencing the results, while the experimental group receives the treatment. There can be several experimental groups.  

Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter.   Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually represented using the letter Y.  Controlled variable: Refers to the variables that have no influence on the results. These variables do not affect the change in the dependent variable values.  

1) What is the control group?

Individuals from test 1 compose the control group. They are not affected by the treatment. Tina just uses them to measure the normal heart rate and to compare them with individuals from test 2.

2) What is the experimental group?

Individuals from Test 2 compose the experimental group. They are affected by the treatment. Tina drops caffeine on their skin to see how it affects the worms.

3) What is the independent (manipulated) variable?

Caffeine is the independent variable. Tina manipulates the number of drops she places on the worm´s skins.

4) What is the dependent (responding) variable?

Heart rate is the dependent variable. Tina evaluates how the heart rate changes in individuals with or without caffeine.

5) What should Tina's conclusion be?

Caffeine increases the heart rate of an earthworm. It changes from 50 to 68 bpm. Tina´s hypothesis is correct.

Question 7 of 25
Which structure is used by the organism to see the outside world?

Answers

Answer:

install

Explanation:

Answer:

Eye

Explanation:

We use the eye to look at things

PLEASE HELP ME I NEED ASAP.
Complete the following table on the different types of microscopes.

Answers

Answer:

A compound light microscope is a microscope with more than one lens and its own light source. In this type of microscope, there are ocular lenses in the binocular eyepieces and objective lenses in a rotating nosepiece closer to the specimen.

The scanning electron microscope (SEM) produces images by scanning the sample with a high-energy beam of electrons. As the electrons interact with the sample, they produce secondary electrons, backscattered electrons, and characteristic X-rays.

Explanation:

PLS PLS PLS HHELLPP MEEE

Answers

To be perfectly honest, I'm not sure what problem 32 is asking. It seems like there's set up to a question, but the actual question itself is missing.

=============================================

For problem 33, we divide the tape's distance by its time. I'm assuming that problem 33 is using the set up info from problem 32.

Recall that

distance = rate*time

we can rearrange things to say

rate = distance/time

So that's why we divide distance over time. The tape's length is effectively the distance, more or less. Imagine that one marker on the tape travels from one end of the reel to the other. It would have to travel the length of the tape when the full tape duration elapses.

----------

So,

rate = distance/time

rate = (260 meters)/(180 seconds)

rate = (260/180) meters per second

rate = 1.44 meters per second, which is approximate

I'm rounding to 3 sig figs.

what can be known about this situation?

Answers

Which situation do u mean?

The reason that the mail bed appears pink is the presence of a larger number of melanocytes in the underlying dermis

Answers

Complete question:

True or False: The reason that the nail bed appears pink is the presence of a larger number of melanocytes in the underlying dermis.

Answer:

False

Explanation:

Nails are composed of the lamina, which is a smooth, shiny, translucent, and keratinized structure. The nails are born the nail matrix. The newly formed nail slice along the mail bed, which is the plane surface under the nails.  

The nail bed places under the nail and is composed of a thin epithelium, with no granulous stratum, and a few layers of parakeratotic cells attached to the nail.  

The nail matrix and nail bed have melanocytes. Half of the melanocytes of the matrix produce melanin, while melanocytes of the nail bed are inactive.  

The nail bed is laying over many small vessels that nourish it and provides a pink color to the nails.

6.If a planet is considered habitable, what would that mean?

We could form new habits there.

It would NOT be able to support life

It would have conditions necessary to support life

Only humans could live there

Answers

Answer:

If a planet is considered habitable it means that the planet has all the conditions necessary to support life ,these conditions can be the presence of oxygen

help mee guy to complete this please please please please please​

Answers

gastric juice helps to convert food into simpler substances

the main function of the teeth is the chewing of food, breaking down food into very small pieces

the two components of digestive system is pepsinogen and mucous

oesophagus is the food pipe. by this the food passes from mouth to stomach through regular contraction and expansion

because the bread (starch) converts into carbohydrate by the enzyme salivary amylase

chapati is the instant source of carbohydrate

in mouth

cellulose

salivary gland

in liver

ingestion

by taste buds

liver

pseudopodia

:)

Question doesn't see clearly than how to help

When the stimulus voltage is increased, _______. When the stimulus voltage is increased, _______. sodium permeability into the cell decreases sodium permeability into the cell increases to overcome the potassium exiting a greater-than-threshold depolarization results a greater-than-threshold depolarization results and sodium permeability into the cell increases to overcome the potassium exiting.

Answers

Answer:

a greater-than-threshold depolarization results and sodium permeability into the cell increases to overcome the potassium exiting.

Explanation:

The occurrence of action potential requires the existence of active voltage-dependent channels to open and close in response to the membrane depolarization.  

When depolarization reaches and supers the threshold point, voltage-dependent Na+ channels open and the ion gets into the cell. The entrance of Na+ decreases the electric charge difference between the cellular interior and exterior. Membrane depolarizes and produces the action potential that tends to reach a potential equilibrium for Na+ = +60mV. The higher the Na+ input is, the greater is the depolarization and the greater is the Na+ permeability.

Once Na+ channels are closed, voltage-dependent K+ channels open, increasing the membrane permeability to the ion, letting K+ get out of the cell, following the electrochemical gradient.  

The closure of Na+ channels and opening of K+ channels are responsible for membrane repolarization.

Acell membrane is very specific about what it allows across. How does this help the cell?

A. Transport proteins allow only enzymes to pass through the membrane.
B. It is better for the cell if most molecules are prevented from entering
C. The cell works better when it contains fewer proteins.
D. It helps the cell absorb as many different molecules as possible.​

Answers

Explanation:

It helps the cell absorb as many different molecules as possible.

In which order do organisms return
to an ecosystem during primary
succession after an area's ecosystem
has been wiped out?
A. trees, hearty shrubs, lichens
B. lichens, trees, hearty shrubs
C. lichens, hearty shrubs, trees

Answers

Answer:

lichens, hearty shrubs, trees

Explanation:

Order:

I-bare rocks,

II-pioneers (mosses, lichen, algae, fungi)

III-annual herbaceous plants

IV-perennial herbaceous plants and grasses

V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.

(please mark me brainliest) :)

Lichens, hearty shrubs, and trees is the correct order in which the organisms return to an ecosystem during primary succession after an area's ecosystem has been wiped out. Thus, the correct option is C.

What is Primary Succession?

Primary succession is the ecological succession which begins in essentially the lifeless areas, such as the regions in which there is no soil or where the soil is incapable of sustaining life where no life form ever existed because of recent volcanic eruption, newly formed sand dunes, or rocks that are left from a retreating glaciers.

The correct order of the Primary Succession is:

Stage I- Bare rocks,

Stage II- Pioneer species such as mosses, lichen, algae, and fungi

Stage III- Annual herbaceous plants

Stage IV- Perennial herbaceous plants and grasses

Stage V- Shrubs, shade intolerant trees, and shade tolerant trees.

Therefore, the correct option is C.

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where does reabsorbtion of glucose take place?
glomerulus
bowman's capsule
2nd coiled tubule
1st coiled tubule

Answers

Answer:

proximal tubule

Explanation:

Glucose reabsorption takes place in the proximal tubule of the nephron, a tube leading out of Bowman's capsule. The cells that line the proximal tubule recapture valuable molecules, including glucose.Under normal circumstances, up to 180 g/day of glucose is filtered by the renal glomerulus and virtually all of it is subsequently reabsorbed in the proximal convoluted tubule.

During a dry year, which plant will most likely be able to survive in clay soil?

Answers

Answer:

A

Explanation:

Answer:4

Explanation:

What is the human female reproductive cycle regulated by?

Answers

hope this helps

Answer:

The menstrual cycle is regulated by hormones. Luteinizing hormone and follicle-stimulating hormone, which are produced by the pituitary gland, promote ovulation and stimulate the ovaries to produce estrogen and progesterone.

What could a human living now and a horse living thousands of years ago
have in common?
A. They need the same amount of energy to survive.
ООО
B. They have the exact same DNA
C. They are made of some of the same matter.
D. They both get their energy directly from the sun

Answers

Answer:

they both get their energy directly from the sun


What describes a country with less industry and whose citizens have low average incomes.

Answers

third world countries

Explanation:

are the results of countries with low exports and high imports

Third world countries work, but developing countries works as well depending on what answer you need.

Developing works because the low income and socio-economic status comes from them not being stable overall a weak infrastructure unlike second and first world countries, it’ll be a while before they catch up.

im not sure what the answer is please helpppp

Answers

The answer is B because the humoral immune response is mediated by antibody
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On a map of a town a school is located (-6, 3) and a movie theater is located (-6, -15) what is the distance from the school to the theater What is the present value of a 10-year annuity of $3,000 per period in which payments come at the beginning of each period All the events listed above are associated with which period in U.S. History?World War IIThe Great DepressionThe Cold WarThe Progressive EraCLEAR ALL Can someone help me with this question please. The church at Philadelphia was alive.TrueFalse When choosing a distraction channel, the impact it has on an offering's costs can significantly affect the Of the offering and how much consumers are willing to pay for it Early in the year,manager John Jacobs set reasonable,understandable,and measurable performance standards and communicated these standards clearly to all team members.Because of these efforts,he should be prepared for the next step in the appraisal process. The first two steps in performance appraisal are establishing performance standards and communicating them to subordinates.The third step is to evaluate performance,and if the first two steps are done correctly,this step is relatively easy.A. TrueB. False Can You help me with this problem Im stuck What is the observation of heating of iodine crystals Adele, Dennis, and Marie are siblings. The sum of their ages is 29. Marie is the eldest, and Adele is the youngest. None of the siblings are older than 16 or younger than 6. No two are the same age. List all the combinations of ages they could be in the organized list below. What is the probability that Marie is 12 years of age? Why is leadership important in a group or a society pls help due in 10 mins Enter an indirect object pronoun to correctly complete the sentence.Mi pap quiere comprar _______ mucho regalos a m. Why is it significant that the name "Tuareg" may have been derived from the Arabic word meaning "abandoned by Allah"?A.This illustrates the religious tension in the region and the battle for believers waging along the "Middle Belt."B.This shows what more traditional North African Arabs may think of the way the Tuareg blend Islam with traditional African religions.C.This isn't signficiant, because it ignores more important elements of Tuareg culture, such as the blue-colored clothing and the salt trade.D.North African governments use this as a means to discriminate against the Tuareg people.Please select the best answer from the choices provided. Which woman was a spy during the Civil War?A.) Rose O'Neal GreenhowB.) Lucy StoneC.) Clara Barton 4.2 To buy a new car is not a very good investment. In the first year the car willdecrease in value by 25%.4.2.1If the car costs R200 000, what will it be worth after 1 year? At a price of per ticket, a musical theater group can fill every seat in the theater, which has a capacity of . For every additional dollar charged, the number of people buying tickets decreases by . What ticket price maximizes revenue? Revenue is maximized when the price is pls help me..... the question is in the attachment.... thank you gii phng trnh vi phn: y" - 5y' + 6y = 6x + 7 Imagineazati un dialog de 4-8 replici intre Mircea Cel Batran, Sigismund De Luxemburg si Jean De Nevers, Ducele Burgundiei. Foloseste cel putin cate un enunt asertiv , interogativ, exclamativ, imperativ.