What is a ‘control’ in an experiment

Answers

Answer 1

Answer:all the things that you keep the same in the experiment

Explanation:

Answer 2
The thing you never change, you keep it the same

Related Questions

Select the correct answer.
What is the benefit of an uneven production of gametes in oogensis?

Answers

Answer:

I'm not sure: To have children,  

and produce sperm

Explanation:

It is the process of producing female gametes and called the creation of ovum

 the benefit of an uneven production of gametes in oogensis is

One haploid cell receives the majority of the nutrients from the cytoplasm

so I conclude option A is correct

hope it helps

match the boinomial of some common level local organisams from a two coulmn list on the basis of generic and specific name

Answers

Explanation:

human being : Homo sapiens

dog: Canis familiaris

house fly: Musca domesticated

domestic cat: Felis domesticus

maize: Zea Mays

Bean: Phaseolus vulgaris

lion : Panthera leo

honey bee: Apis mellifera

Why is carbon-14, with a half-life value of 5,730 years, not appropriate for finding
the absolute age of dinosaur fossils?​

Answers

Answer:

because dinosaurs existed millions of years ago, carbon-14 has a short life that is too small to compare millions.

Explanation:

Which statement best describes genetic material?
A. A single gene contains hundreds of proteins that have the code for
making more genes.
B. Chromosomes are sections of DNA that have the codes for amino
acids
C. Genes are made up of chromosomes that are packaged tightly in
DNA
D. A single gene has the code for the series of amino acids that
makes a protein.

Answers

Answer:

D. A single gene has the code for the series of amino acids that

makes a protein.

Explanation:

Genes are functional units of heredity and they are made of DNA that is packaged in components called chromosomes.

Each gene carry a genetic code which codes for the series of amino acid creating a specific protein.  In general, the genetic code specifies 20 standard amino acids that form proteins.

Hence, the best statement describes genetic material is "D" and other given options are incorrect.

how can we improve crop production​

Answers

Answer:

Improve Soil, Increase Crop Yield to increase crop yield, start from the ground up. Testing soils. Plant Early, Plant Effectively. Practice Seasonal Soil Rotation

Answer: Plant Early,Practice Seasonal Soil Rotation,

Always Scout Your Fields......and soo one

Explanation: hope this helpes :)

The theater sold 562 tickets to the concert at a price of $6 each. Use the distributive property to find the product of 6 × 562. 6(562) = 6(500) + (60)(2) = 3,120

Answers

Answer:

1,897,087=1,900,207.2=3,120 (the equasion you gave when distributed)

Answer to the question(Money made): ($)3,372

Explanation:

solved it out by multiplying

Answer:

Answer to the question(Money made): ($)3,372

Explanation:

In a hydrogen ion pump, the energy is used to join small molecules together to make larger ones. Which factor most likely has the greatest effect on the number of molecules mitochondria can produce?

Answers

Answer:

The amount of energy the flowing H(+) ions have

Explanation:

Hope it helps.

Answer:

B

Explanation:

APEX

Which describes one characteristic of both El Niño and La Niña?

Both are causes of long-term climate change.
Both create warmer water.
Both occur in the Pacific Ocean.
Both are causes of hurricane activity.

Answers

Answer:

Both occur in the Pacific Ocean.

Explanation:

El Niño and La Niña are opposite phases of a natural climate pattern across the tropical Pacific Ocean that swings back and forth every 3-7 years on average

Answer:c

Explanation:

a) Name the structures that: i) Carry water and mineral salts to the leaf ii) Prevents too much water loss from the upper surface of the leaf iii) Opens to allow gases to pass into and out of the leaf iv) Is the site for most of the photosynthesis taking place v) Is the layer where light is able to pass through directly b) How does a leaf protect itself from unwanted intruders like bacteria from getting in and stopping important reactants from going out? PLEASE ANSWERR

Answers

Answer:

a) i) Xylem

   ii) Upper epidermis  

   iii) Stoma

   iv) Chroloplast  

   v) Palisade cell layer

b) By a waxy layer on the cuticle of the leaf

Explanation:

The plant's leaves have a large surface area that is capable of absorbing sunlight. The plant's waxy layer in the surface of the leaf protects it from the loss of water, as well as of diseases caused by the entry of microorganisms. The palisade cell's surface is a single layer of cells underneath the upper epidermis that is adapted to absorb light energy.

The waxy layer is a primary physical barrier composed of insoluble polymers and lipids whose function is to protect the leaves against the entry of harmful organisms including virus, bacteria and fungus. Moreover, the plant's waxy cuticle is also a barrier that prevents the loss of water and solutes.

Answer:

luisvaschetto is right!!!!!!! i got a 100.

WILL GIVE BRAINLIEST Compare and contrast bacterial and eukaryotic ribosomes.

Answers

Answer:

Ribosomes. Eukaryotic ribosomes are larger. They consist of a 60S large subunit and a 40S small subunit, which come together to form an 80S particle having a mass of 4200 kd, compared with 2700 kd for the prokaryotic 70S ribosome. The 40S subunit contains an 18S RNA that is homologous to the prokaryotic 16S RNA.

Hope this helps...

Have a nice day!!!!

Name five diseases transmitted by vectors. ​

Answers

Answer:

Mosquito-borne diseases

Chikungunya

Dengue and severe dengue

Yellow fever

Zika virus

Malaria

Japanese encephalitis

Lymphatic filariasis

Explanation:

HAVE A GOOD DAY!

Rank the following substances based on how quickly sound will travel through them from fastest to slowest. Then explain your ranking, based on the properties of sound wave
•air
•water
•rock

Answers

Answer:

Rock

Water

Air

Explanation:

Sound can travel through rock the fastest since the molecules are packed the tightest and the second tightest is water than air

What are the functions of SER

Answers

Answere1SER helps in the manufacture of fat molecules or  lipids

2It plays a critical role in detoxifying many poisons and drugs in the liver

Answer:

SER (Smooth Endoplasmic Reticulum) produces and exports lipids and protein, and SER functions for detoxication. It is concerned with carrying out certain metabolic processes.

Carbonic anhydrase inhibitors cause less movement of carbonic acid toward carbon dioxide production and are used as a prophylactic treatment of altitude sickness. Altitude sickness occurs when a hiker ascends to altitudes where the density of oxygen is low. How does this decrease the symptoms of high altitude sickness?
A) The excess hydrogen ions are excreted in the urine and the resulting loss of acidity increases respiration rate.
B) The excess bicarbonate ions are excreted in the urine and the resulting loss of blood pressure increases respiration rate.
C) The excess bicarbonate ions are excreted in the urine and the resulting increase in blood acidity leads to an increase in ventilation.
D) The excess bicarbonate ions in the blood increase the affinity of hemoglobin for oxygen.

Answers

Answer:

The excess bicarbonate ions are excreted in the urine and the resulting increase in blood acidity leads to an increase in ventilation.

Explanation:

Which is not something that occurs in translation? A codon and an anticodon pair. A peptide bond is created. A molecule of mRNA is formed. An amino acid is added to a polypeptide.

Answers

Answer:

A molecule of mRNA is formed.

Explanation:

Translation is the second process that occurs in gene expression. It is the process by which the information encoded in the mRNA transcript is used to synthesize a protein.

The mRNA nucleotide sequence is read in a group of three nucleotides called CODON. Each codon specifies an amino acid. Translation, which occurs in the ribosomes (cytoplasm), reads the codon with an anticodon using the complementary base pairing rule i.e. A-U, G-C. This means that a CODON-ANTICODON pairs.

The anticodon carries a corresponding amino acid to the polypeptide sequence. A peptide bond is formed when two amino acids joins together in a condensation reaction.

Note: A molecule of mRNA is formed during transcription

Answer:

A molecule of mRNA is formed.

Explanation:

Translation is the second process that occurs in gene expression. It is the process by which the information encoded in the mRNA transcript is used to synthesize a protein.

How many core biosafety work practices (or do's and don'ts) are there, according to the National Research Council’s book entitled, Prudent Practices for the Handling and Disposal of Infectious Materials?

Answers

Answer:

seven

Explanation:

There are seven biosafety practices which should be followed during the Handling and Disposal of Infectious Materials. These biosafety practices were made by the scientists in order to reduce the chances of contamination of worker who deals with the handling and disposal of Infectious or toxic materials. If these seven biosafety practices were not followed by the workers so there is high chances of infection which leads to their death.

Tamir starts earning better grades in school than his sister. Which conflict will this most likely create? Tamir’s sister will begin to get poor grades in school. The siblings will begin to compete against each other. The siblings will push the boundaries against authorities. Tamir will make fun of his sister by bragging about his grades.

Answers

Answer:

The siblings will begin to compete against eachother.

Explanation:This often happens with siblings as a sort of rivalry.

The siblings will start competing with each other to get better grades. The correct answer is B.

Why will the siblings start competing?

A conflict will arise when there is a difference between actions or thoughts among two or more people.

Tamir will develop a sense of superiority over his sister only on the basis of earning better grades. Thus, to maintain that position, he will try his best to consistently score more than his sister.

Whereas, his sister will develop a sense of inferiority or insecurity due to scoring lesser than him. Due to this, she will be determined to score more than him in every upcoming exam and defeat him.

This will lead to a sense of competition to achieve more than the other in every examination.

Thus, the correct option is B.

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The coyote's diet includes a wide variety of small mammals, livestock, birds, reptiles, carrion, fruit, and vegetables. It is one of the few animals that has enlarged its range since human encroachment began. Which is the most likely reason for this?
It has adapted its diet to include more variety, thereby increasing its food supply.
It has intermingled with human pets, such as the dog, to increase its population.
It has migrated to ranges with more favorable, moderate climates.
It has an increase in nest and shelter sites within the urban and rural range.

Answers

Answer:

It has adapted its diet to include more variety, thereby increasing its food supply.

Explanation:

As the coyote is already an omnivore, but faces new food sources in the city, it easily adapts to this food. The more food an animal has, the higher the chances it will reproduce.

Answer:

It is A in edge 2020

-It has adapted its diet to include more variety, thereby increasing its food supply.

Explanation:

I just took the test


How does an amoeba reproduce?

Answers

Answer:An amoeba uses asexual reproduction to reproduce using a process of binary fission.

Answer:

Most amoebas reproduce aesexually through mitosis. However, some are capable of reproducing meiotically (sexual reproduction)

Explanation:

What might an elevated ST segment of an ECG mean?
A. All of these
B. Cardiovascular disease
C. Impending heart attack
D. Hypertrophy

Answers

Answer:

C. Impending heart attack

The elevated ST segment of an ECG mean an impending heart attack. The correct option is C.

What is an EGC?

An electrocardiogram (ECG) is a simple test that can be utilized to check the rhythm and electrical activity of your heart. Sensors attached to the skin diagnose the electrical signals generated by your heart every time it beats.

ST-segment elevation generally signals that the involved coronary artery is completely blocked and that the heart muscle is dying.

Thus, the correct option is C.

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In an organism, X, it is found to be impossible to generate loss-of-function mutants for most genes. There is an alternative method of introducing random mutations that can later be screened for the gene(s) in question. This can be accomplished by using insertions due to what genetic entities?

Answers

Answer:

Transposable elements (TE)

Explanation:

A transposon, also known as 'jumping genes', is a particular sequence of DNA that can relocate inside of the genome. It affects the genetic identity and can be made use of to either reverse a mutation or create one - it duplicates that genetic sequence. Retrotransposons is a class of TE found in viruses.

When you eat, your blood glucose level rises. Soon after, it drops as the glucose is stored. Where does it go?

Answers

Explanation:

About to six hours after you eat the glucose levels in your blood decrease triggering your pancreas to produce glucagon. This hormone signals. your liver and muscle cells to change the stored glycogen back into glucose.

what is the function of Krebs Cycle please help!!!!!

Answers

Explanation:

it is the final process of oxidisation for food stuff

The Black Death was a pandemic spreading across Europe between 1348 and 1350. Estimates states that 30% to 60% of Europe's population died from the Black Death. If we look at Europe's population before the pandemic and compare it to the population several generations later, what are we likely to find?
A. More genetic diversity in later generations.
B. Less genetic diversity in later generations.
C. Less genetic diversity in earlier generations.
D. The same degree of genetic diversity in later as in earlier generations.

Answers

Answer:

The correct answer is option B, that is, less genetic diversity in later generations.

Explanation:

A pandemic that spread across Europe between 1348 and 1350 was named as the Black Death. It has been predicted that of the total population of Europe at that time 30 to 60 percent died due to the pandemic. The geneticists are still trying to document the influence of Black Death on the population of Europe today.  

It has been found that in England, the genetic diversity is found much lower in comparison to what it was in the eleventh century, and is primarily due to so many people dying in the 1300s. However, the rest of Europe does not demonstrate a dropped amount of genetic variation, which maybe because of the enhanced patterns of migration in other places.  

Predict what would happen if we had no system of lymphatic vessels, and tissue fluid was moved directly back into the circulatory system throughout the body.

Answers

Answer:

If there was no system of lymphatic vessels, there would be no drainage of excess fluid from the tissues and the lymphatic fluid would accumulate in the tissues, causing them to swell.

Explanation:

The lymphatic vessel is made up of tiny vessels that are closed at one end and can be found in the spaces in the cells, except the central nervous system and the non-vascular tissues.

The main function of the lymphatic vessel is to move lymph which is a fluid that contains infection-fighting white blood cells to every part of the body.

So, if there was no system of lymphatic vessels, and tissue fluid was moved directly back into the circulatory system throughout the body. the lymphatic fluid would accumulate in the tissues, causing them to swell.

Where do I can find a white deer in far cry primal

Answers

Try to find a flock of deers and look for a golden trace around them. If you see it follow it and it will lead you to a rare white deer or rare animal

The red pigment in erythrocytes is __,which transports oxygen.

Answers

Answer:

The answer is Haemoglobin.

Explanation:

Haemoglobin is a red pigment in red blood cell is used to transport oxygen.

Describe under what conditions you might expect your cells to undergo anaerobic respiration. Be specific as to why these conditions would prevent normal cellular respiration to proceed. What product is produced under anaerobic conditions and is it harmful?

Answers

Answer:

Explanation:

Cells start undergoing anaerobic respiration when energy requirement is high and there is not sufficient availability of oxygen to produce required energy .

For example , when we we run fast , energy requirement by muscle cell is high but available oxygen level is not sufficient so cells start anaerobic respiration which produces lactic acid and this product creates tire-ness.

For normal respiration , oxygen is required . If there is lack of oxygen , aerobic respiration is not possible .

In yeast cells , alcohol is produced by anaerobic respiration. Alcohol is not harmful . In muscle cells , lactic acid is produced which is harmful .  

A researcher interested in the disappearance of fallen leaves in a deciduous forest carried out a field experiment that lasted nearly a year. She collected all the leaves from 100 plots scattered throughout the forest. She measured the amount of leaves present in November, May and August. The percentages reflect the number of leaves found, using the November values as 100 percent.

Answers

Answer:

Elm:    50 %; 1 %

Hazel: 69 %; 4 %  

Explanation:

Assume the table looked like this.

[tex]\begin{array}{crrr}\textbf{Month} & \textbf{Ash} & \textbf{Elm} &\textbf{Hazel}\\\text{Nov} &\text{4271 g}& \text{3481 g} & \text{1723 g}\\ & 100\, \% & 100\, \%&100\, \%\\\text{May} & \text{2431 g} & \text{1739 g} & \text{501 g}\\& 100\, \% & x \, \% &z \, \%\\ \text{Aug} & \text{1376 g} &\text{35 g} & \text{62 g}\\& 100\, \% & y \, \% & w \, \%\\\end{array}[/tex]

To get the percentages for each species for May and August, you divide that month's mass by the November mass and multiply by 100.

[tex]x = \dfrac{\text{1739 g}}{\text{3481 g}} \times 100 \, \% =50 \,\%\\\\y = \dfrac{\text{35 g}}{\text{3481 g}} \times 100 \, \% = 1 \,\%\\\\z = \dfrac{\text{501 g}}{\text{1723 g}} \times 100 \, \% = 69 \,\%\\\\w = \dfrac{\text{62 g}}{\text{1723 g}} \times 100 \, \% = 4 \,\%\\\\[/tex]

The figure below shows the graphs for ash and elm.

The protein RDA for adults is 0.8 grams per kilogram of healthy body weight per day. A woman weighs 60 kg and her weight falls within the normal range for her height. How much protein (in grams) should she consume in one day?

Answers

Answer:

Amount of protein required = 48 gram

Explanation:

Given:

Adult required = 0.8 gram protein per kg

Weight of women = 60 Kg

Find:

Amount of protein required

Computation:

⇒ Amount of protein required = Total body weight × 0.8 gram protein

⇒ Amount of protein required = 60 × 0.8

Amount of protein required = 48 gram

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Using the equation w (1.5 + 1) + 2 = 17, the race's organizer determined the cyclists will need to ride 9 laps before the sprint to the finish. Which explains the error? The equation should be 0.75 w + 0.5 w + 2 = 17, and the cyclists will need to ride 12 laps before the sprint to the finish. The equation should be 2 (0.75 w + 0.5) + 2 = 17, and the cyclists will need to ride 21 laps before the sprint to the finish. The solution should be 6, and the cyclists will need to ride 6 laps before the sprint to the finish. The solution should be 8, and the cyclists will need to ride 8 laps before the sprint to the finish. Which three sentences in this excerpt from Franklin D. Roosevelts Day of Infamy speech make an emotional appeal by suggesting that America's innocence was betrayed by certain enemies?Which three sentences in this excerpt from Franklin D. 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