NEED HELP ASAP

In vitro experiments model the conditions in living cells. Which of the
following is not an advantage of in vitro experiments ?
O A. The lack of interference from cell parts during observations
O B. The reduction in extra substances that can confuse results
O c. The unnatural behavior of some enzymes in a test tube
O D. The ability to control all possible variables

Answers

Answer 1
It’s a the lack of interference from cell parts

Related Questions

The image shows a paramecium and a bacterium. One of these organisms is very good at rapidly adapting to environmental changes because it has the ability to take in stray genetic information from the environment. Which structure allows the organism to do this?

Answers

Answer:

The bacteria forms new kind of cells to adapt to a new environment. This adaptation is under tight genetic control, involving the expression of multiple genes.

the bacteria need to adjust their enzyme levels in order to quickly benefit from the nutrient mix that is currently available in the surrounding.

If the living environment undergoes a sudden change, the bacterium's own production of proteins has to fulfill these changes in an effective way.

Which statement describe a pattern shown in the data?

Answers

The data from trial 3 are inconsistent with the dat as from trials 1 and 2

13
Select the correct answer.
A farmer changed certain timings of his farming operations to control pest infestation in his field. Which pest control method did he use?
OA
genetic pest control
B. biological pest control
C. cultural pest control
OD
chemical pest control
О Е
mechanical pest control
Reset
Next

Answers

Answer:

Is it chemical pest control?

Explanation:

Might I be right.....

Answer:

C

Explanation:

Cultural pest control is done at a particular te set to be done.

PLEASE HELP I NEED IT TO BE RIGHT Which of these describes a method in studying plate movements? Select one: a. Observing absence of magnetic rocks in locations that do not match the poles Incorrect b. Match relief elements only on the western side of the Atlantic Ocean c. Recording the spread of the seafloor in the mid-Atlantic region d. Correlate the rotation of Earth to plate movement

Answers

Answer:

C. Recording the spread of the seafloor in the mid-Atlantic region

Explanation:

This seems to be the only logical answer. Since we are talking about a method in studying plate tectonics/movements, using evidence of it, seafloor spreading, would be the best idea out of the four.

Seafloor spreading is a geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other.

Hope this helped! :-)

Using the drop-down menus below, identify the processes cells use to maintain homeostasis

Answers

Answer:

OsmosisActive TransportPassive TransportDiffusion

Explanation:

Answer:

Osmosis

Active Transport

Passive Transport

Diffusion

Explanation:

why is the dominant allele called dominant.
A. There is always at least one dominant allele
b. there are always more dominant alleles in a genotype
c. it dominates the phenotype
d. the dominant alleles are the only kind that determine phenotype.

Answers

Answer:

It dominates the phenotype

Explanation:

What is the oxidation hall reaction for 2Mg+O 2 2MgO ?

Answers

Answer:

2Mg(s) → 2Mg2+ + 4e. On the other hand, O2 was reduced: its oxidation state goes from 0 to -2. Thus, a reduction half reaction can be written for the O2 as it gains 4 electrons: O2(g) + 4e− → 2O.

Explanation:

Use the drop-down menus to complete the sentence below. A is an organism that may be eaten by a .

Answers

Answer:

A  

✔ primary consumer

is an organism that may be eaten by a  

✔ secondary consumer

What are DNA machines, according to Kraves?

Answers

Answer:

they are machines or devices build to find la DNA trace and copy it multiple times.

Explanation:

DNA machines are machines built to find a DNA line and copy it multiple times, so scientists can read, observe, and find information about the DNA strand. For example, DNA machines can determine if someone is related, if someone has cancer, and it can distinguish a person’s ancestry. Mainly this is how forensic science uses to determine when there's a suspect in a crime.

Answer:

Machines that can find any specific line of genetic information. They then copy the target gene until we are able to visualize it

Explanation: I watched the actual video



Why can the more complex sugar cellulose store more energy than the sugar

glucose?


A. Cellulose is made by plants.

B. Cellulose is smaller than glucose.

C. Cellulose has more chemical bonds.

D. Cellulose contains hydrogen atoms.

Answers

Answer:

Cellulose has more chemical bonds

Explanation:

It is complex carbohydrates molecule and stores thosands of energy as in glucose

The statement (C) is correct. The cellulose has more chemical bonds.

What do you mean by cellulose?

Cellulose is an organic compound with the formula ₙ, a polysaccharide consisting of a linear chain of several hundred to many thousands of β linked D-glucose units. Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes.

Moreover, cellulose, a tough, fibrous, and water-insoluble polysaccharide, plays an integral role in keeping the structure of plant cell walls stable. Cellulose chains are arranged in microfibrils or bundles of polysaccharide that are arranged in fibrils (bundles of microfibrils), which in turn make up the plant cell wall.

Hence, cellulose is an insoluble dietary fibre consisting of glucose polymers present in all cell walls of plants.

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Labeling the Amino Acid Structure Using the drop-down menus, label the parts of an amino acid. Label A Label B Label C

Answers

Answer:label a:amino group

Label b:R group

Label c:carboxyl group

Explanation:

Label b:R group, Label c:carboxyl group.

What are Amino acid?

All living things employ amino acids as building blocks for proteins. Twenty distinct amino acids are required by your body for proper operation.

You must consume essential amino acids through the food you eat. Beef, eggs, and dairy products are just a few examples of meals that contain essential amino acids.

The building components of protein are amino acids. Long strands of amino acids make up proteins. Numerous distinct proteins in your body each perform vital functions. Each amino acid sequence in a protein is unique.

Therefore, Label b:R group, Label c:carboxyl group.

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Describe some of the basic trends in hominid evolution (brain size, jaw size, language, and manufacture of tools) using at least five (5) sentences.

Answers

Answer:

Hominids refers to humans and its closest relatives such as the chimpanzee, gorilla etc.

The basic trends in hominid evolution include:

1. The use of the rear limbs or legs for walking instead of four.

2. There was also an increase in the abuse and discoveries of the terrestrial habitat.

3. Their brain was known to increase in size which made them more sophisticated in thinking and knowledge.

4. They started making tools and used it to hunt wild animals for food.

5. There was a change in their diet as it went from fruits, leaves and other staple foods to the inclusion of a large amount of meat as a source of protein.

Does anyone know how to graph solubility curve?

Answers

Answer:

All you need to do is draw the lines connecting the dots. I couldn't do it with this platform.

Explanation:

In a new trial to test the effectiveness for a new type of medicine, why is it necessary for one group to receive a placebo?

Answers

Answer:

To serve as control experiment.

Explanation:

Hope it helps.

It is necessary in order to have a control group.
Explanation:
By having a placebo group one can observe whether or not the one with the new type of medicine have any consistent and real changes after taking the medicine.

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Which of the following products were created through marine biotechnology?

Penicillin

Plasma television

Fluorescent dyes

Lithium batteries

Answers

Answer:

penicillin is the answer

Penicillin. The first name for Penicillin was “mould juice.” Scottish bacteriologist Alexander Fleming accidentally discovered this said antibiotic in 1928. When he got back from vacation, Fleming found a green mold called Pennicilium notatum that had contaminated some Petri dishes in his lab and were killing some of the bacteria that he had been growing.

*PLEASE ANSWER* What is a sudden increase in temperature of a natural body of water that can harm aquatic organisms? a.) land pollution b.) thermal pollution c.) air pollution d.) acid rain

Answers

Answer:

The answer is option B.

Thermal pollution

Hope this helps you

B thermal pollution hope this helps!

how did the modern atomic theory develop?

Answers

From Dalton to the Periodic Table. Modern atomic theory begins with the work of John Dalton, published in 1808. ... The best evidence for his theory was the experimentally verified law of simple multiple proportions , which gives a relation between the weights of two elements that combine to form different compounds.

Please help

Lightning converts_________
into ________.

A. nitrates, atmospheric nitrogen
gas
B. ammonia, nitrites
C. nitrites, ammonia
D. atmospheric nitrogen gas,
nitrates

Answers

Answer:

The answer is option D.

atmospheric nitrogen gas,

nitrates

I hope this helps you

Answer:

D. Atmospheric nitrogen gas, nitrates

Explanation:

The enormous energy of lightning breaks nitrogen molecules in the stmosphere and allows their atoms to combine with oxygen in the air forming nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth.

(Hopefully this helps somehow)

In the punnet square,fill in the shaded boxes with the alleles of. Each parent. Use B for the dominant allele (black fur) and b for the recessive allele (white fur)

Answers

Answer:

male - female blck is tge answe ok

Answer:

Male - B

Female- b

combination is Bb on all

Black fur- 100%

White fur- 0%

Explanation:

right on edge


How many total, non-unique alleles are there for each gene in a population of 250 humans?

a- 250
b- 1000
c- 125
d- 500

Answers

Answer:

its 500

Explanation:

i just took the quiz and this was the right answer.

Answer:

I hope this helps.

Explanation:

Activity Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part A What are the student’s observations and inferences before he starts his investigation?

Answers

Answer:

OFFICIAL ANSWER (do not copy verbatim):

The student has observed that artificial fertilizer makes his plants grow faster and taller than plain soil. He knows that compost is a natural fertilizer. So, he infers that compost will make his plants grow at a faster rate than they grow in plain soil.

Explanation:

Daniel’s doctor is trying to determine the cause of his recent onset of asthma symptoms. Of the information Daniel provided, which would his doctor find most helpful in determining a cause?

a.

Daniel had never experienced asthma symptoms until now.

b.

Daniel notices the asthma symptoms occurs more often during cross country practice.

c.

Daniel’s worst symptom is shortness of breath.

d.

Daniel’s sister was diagnosed with asthma at an early age.

Answers

Daniel worst symptom is shortness of breath.

That is also one of the emerging cause in asthma patients

Shortness of breath is the worst symptom which can help doctor determine his onset of asthma symptoms. Therefore, option (C) is correct answer.

What is asthma?

A illness that affects your lungs is referred to as asthma. Although it is more prevalent in children than in adults, asthma is a chronic condition that can affect people of any age. In people who suffer from asthma, nighttime and early morning coughing, wheezing, shortness of breath, and chest tightness are common symptoms.

Even though there is no cure for asthma at this time, medication can help control the symptoms so that you can lead a normal, active life. The most common form of treatment involves the use of inhalers, which are handheld medical devices that deliver medication via inhalation. If your asthma is severe, you may also need to take tablets and participate in other therapies.

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During replication, which enzyme works to join newly created DNA strands together along various sites of the DNA macromolecule? RNA ligase DNA polymerase DNA ligase RNA polymerase

Answers

Answer:

DNA ligase

Explanation:

please tell me if I'm wrong

Plants absorb sunlight through Photosynthesis. Which characteristic of life is this an
example of?
A. Obtains and uses energy
B. Responds to stimuli
C. Grows and develops
D. Homeostasis

Answers

Answer:

A. Obtains and uses energy

The characteristic of life shown here is plants obtain and use energy.

What is photosynthesis?By using the energy from sunlight, plants, some bacteria, and some protozoa make sugar, which cellular respiration then transforms into ATP, the "fuel" that all living things use. The green pigment chlorophyll is responsible for the transformation of inefficient solar energy into useful chemical energy.  The photosynthetic process makes use of water and emits the oxygen that is vitally necessary for our continued existence.The overall reaction of photosynthesis is:

                       6H₂O + 6CO₂ + light energy → C₆H₁₂O₆+ 6O₂

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The sum of the interior angles of a polygon is 9x. If x is 3 greater than the number of side of the polygon, how many sides does the polygon have? The second half of the eighteenth century witnessed Group of answer choices a tremendous growth in amateur music making at home. a move back to the basics of Gregorian chant. the downfall of Haydn's career. the birth of opera. Consider each situation and determine whether the person is structurally unemployed, frictionally unemployed, or cyclically unemployed. a. Julie had to leave her old job when she moved to a new city. She works in customer service and is looking for a new job.b. Julie graduates from college and is looking for a job as an accountant.c. Bob loses his job as the economy slips into a recession.d. Jim got laid off from his job at an auto manufacturer as the company became more automated. Will give brainliest answer Hughes was influenced by the poets Walt Whitman, Carl Sandburg, Paul Laurence Dunbar, and Claude McKay. Can you detect these influences in this poem or in other poems written by Hughes? Harlem (A Dream Deferred) by Langston Hughes Someone plz HELP MEE!!!! Ive been needing help the whole day. Please help, i need to finish this please! A drug's generic name is the official drug name found in theA. National Institutes of Health.B. Center for Disease Control.C.U.S Pharmacopeia National Formulary.D. Physician's Desk Reference. the iupac name of the compound What statement best describes the Belgian colony in the Congo under King Leopold II? A. Congolese citizens were largely independent as long as they provided Belgium with rubber B. Congolese leaders maintained their power by encouraging rebellions against colonial rule C. Belgium used intimidation and violence to establish a forced labor system in the colony D. Belgian leaders worked with the Congolese officials to promote economic growth in the colony Ta escribir en tu cuaderno. need this ASAP. pls answer this question The length of the rectangle is described by the function y = 3x + 6, where x is the width of the rectangle. Find the domain in this situation. What are the features of modern age? Explain in 200 words Mention the similarities and differences between book painting and scroll painting.I need the answers in points. Jessica's friend has decided to quit smoking. What should Jessica do to encourage her friend? What is the best definition of detoxification? can someone simplify (3x)^4 Fill in the blanks with appropriate wods.1. A process called__________ helps to propel first the bolus and then chyme forward through the esophagus, stomach, and small intestine.2. Nutrients are absorbed through the lining of the small intestine via a variety of mechanisms. Most nutrients require______________ , where a specific carrier protein is utilized, but no energy is required.3. Some smaller molecules can cross via_____________ , Like with facilitated diffusion, no energy is required because the concentration of a nutrient is higher inside the GI tract than in the enterocyte. Unlike with facilitated diffusion, however, no ____________ is needed.4. Nutrients like glucose and amino acids are absorbed through ______________ , which requires both a carrier protein and energy in the form of ATP.5. A fourth method is called _____________ , which involves a vesicle that forms from the enterocyte's cell membrane, engulfing the nutrient and then drawing the nutrient into the cell.6. Once absorbed, water-soluble nutrients like carbohydrates and amino acids enter capillaries and travel to the liver via the ___________ .7. Fat-soluble nutrients initially travel via the _____________ before entering the bloodstream.8. Most water is absorbed in the _____________ , and solid waste is then eliminated.a. Large intestine b. Peristalsis c. Passive diffusion d. Carrier protein e. Active transport f. Facilitated diffusion g. Endocytosis h. Lymphatic system i. Hepatic portal vein An athletics coach states that the distribution of player run times (in seconds) for a 100-meter dash is normally distributed with a mean equal to 13.00 and a standard deviation equal to 0.2 seconds. What percentage of players on the team run the 100-meter dash in 13.36 seconds or faster Mountain Lake Corporation's accounting records show the following at year-end December 31, 2014:Purchase Discounts $7,230 Beginning Inventory $32,660Freight-In 8,730 Ending Inventory 29,170Freight-Out 12,260 Purchase Returns and Allowances 4,190Purchases 164,250 Assuming that Mountain Lake Corporation uses the periodic system, compute the cost of goods purchased and cost of goods sold.1. Cost of goods purchased$=?2. Cost of goods sold$=? Question 1(Multiple Choice Worth 5 points)2(LC)Which figure of speech does Thoreau use to show how loud the bird was in the sentence: "The cockerels crow on the trees, clearand piercing for miles over the resounding earth! It would put nations on the alert."?O PersonificationO MetaphorSimileHyperbole