How did the result of the Hershey chase experiment strengthen Averys conclusions?

Answers

Answer 1
Hershey and Chase studied bacteriophages which are viruses that attack bacteria. In their experiment Hershey and Chase labeled the bacteriophages with radioactive isotopes to see where the virus attacks. They use phosphorus 32 and sulfur 35 because proteins contain almost no phosphors and DNA contains almost no sulfur. Nearly all of the radioactivity was found in phosphorus, meaning DNA holds genetic information, not protein.

Related Questions


Which of the following types of models is generally used to predict long-term events?
a. idea model
b. physical model
C. computer model
d. none of the above
Please select the best answer from the choices provided

Answers

should be the first one

. How much time does it take a person to walk 12 km north at a velocity of 6.5 km/h

Answers

Answer:

It will take 1.85 hours to walk 12 km north.

Answer:

Explanation:

v=\(\frac{d}{t}\)

and the d here is the distance which is equal 12 km

the time is still unknown

and we know the velocity which is 6.5 km/h

and according to the triangle of the velocity "search that up "

t =\(\frac{d}{v}\)= \(\frac{12}{6.5}\)≈1.8 hours

Which statement best describes the relationship between cellular respiration and photosynthesis?

a.Cellular respiration and photosynthesis have the same products but use different reactants.

b.Cellular respiration and photosynthesis are the same processes; one occurs in animal cells and the other in plant cells.

c.Cellular respiration produces oxygen, which is the reactant required for photosynthesis.

d.Cellular respiration produces carbon dioxide, which is the reactant required for photosynthesis.

Answers

i’m thinking it would be c

he immune system fights diseases. The circulatory system pairs with the immune system because

Answers

The circulatory aids with the immune system because they provide white-blood cells to help fight with the diseases or sicknesses.

2. What type of enzyme adds phosphate to ADP making ATP?
A. Kinase
B. Mutase
C. Isomerase
D. Dehydrogenase

Answers

Answer:

kinases, mutases, and dehydrogenases, cleaving enzymes, isomerases or enolases

Because it's most resistant to deterioration, which type of molecule is most often found in molecular fossils?

A. RNA molecules
B. Protein molecules
C. DNA molecules
D. Lipid molecules

Answers

Answer:

Of the four main groups of organic molecules, Lipids are the most resistant to decay. They are also highly insoluble in water. All cells produce this type of organic compound to be used in their membranes and in energy storage. These type of organic molecules are found in kerogens

How does the current affect plankton and nekton life?

Answers

Answer:

Advection by ocean currents modifies phytoplankton size structure at small scales (1–10 cm) by aggregating cells in different regions of the flow depending on their size. This effect is caused by the inertia of the cells relative to the displaced fluid

They don't study history


Answers

Answer:

They will be doomed to repeat it.

Explanation:

Quote by George Santayana

What happens in the stomach?  A. Water and nutrients are absorbed.  B. Waste material is expelled from the body.

Answers

Answer:

Find an answer choice similar to this:

Food is broken down into smaller components (digested) to send to the small intestine.

Explanation:

The other two choices I can see are the functions of the large intestine. The large intestine absorbs water and nutrients and eliminates waste material (the body expels waste through the rectum and anus).

Formulating a Hypothesis Write a hypothesis about the effect of a strong odor on earthworm behavior. Use the "if... then.. because..." format, and be sure to answer the lesson question, "How is earthworm behavior affected by external stimuli?"​

Answers

If a strong odor is present near earthworms, then their behavior will be affected because they rely heavily on their sense of smell to navigate their environment and detect food sources. Therefore, the hypothesis is: Strong odors will alter the behavior of earthworms due to their reliance on their sense of smell.

Forested floodplain wetlands benefit from periodic flooding from rivers. When floodwaters spill into the wetland, they bring water and nutrients and leave both behind. But humans have often cut off floodplains from rivers by building roads, levees, berms, etc. Think about what would happen if a river could no longer flood into these areas. How would the resulting increased amount of water and nutrients in the river affect soils, hydrology, and life downstream?

Answers

The absence of flooding from rivers into forested floodplain wetlands would lead to adverse effects on soils, hydrology, and the overall biodiversity downstream, emphasizing the importance of maintaining the natural connection between rivers and floodplains for the health and functioning of these ecosystems.

If a river can no longer flood into forested floodplain wetlands due to human interventions, it would have significant consequences for the downstream areas in terms of soils, hydrology, and life.Without periodic flooding, the increased amount of water and nutrients in the river would not be able to disperse and be deposited in the floodplain wetlands. As a result, downstream soils would experience a decrease in nutrient inputs, leading to decreased fertility and altered composition. The absence of regular flooding would disrupt the natural hydrological cycle, reducing the recharge of groundwater and altering the flow patterns in the river system. This could result in decreased water availability, increased erosion, and changes in the overall ecosystem dynamics downstream.The disruption of nutrient flows and hydrological patterns would also have a significant impact on the life forms downstream. Aquatic plants, fish, and other organisms that depend on floodplain wetlands for breeding, feeding, and shelter would face habitat loss and reduced food availability. This, in turn, could disrupt the food chain and impact the abundance and diversity of aquatic and terrestrial species in the downstream areas.The absence of flooding from rivers into forested floodplain wetlands would lead to adverse effects on soils, hydrology, and the overall biodiversity downstream, emphasizing the importance of maintaining the natural connection between rivers and floodplains for the health and functioning of these ecosystems.

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what would coffee at a pH of 4 be considered

Answers

Answer:

Slightly acidic

Explanation:

Answer:

Coffee with a pH of 4 would be considered acidic.

Which property of the cell membrane allows it to act as a highly selective barrier? the rigid structure of the cell membrane the hydrophilic heads and hydrophobic tails O consisting of a single layer being made up of primarily carbohydrates​

Answers

The property of the cell membrane that allows it to act as a highly selective barrier is the hydrophilic heads and hydrophobic tails.  Therefore, option (B) is correct.

What is a cell membrane?

The cell membrane is composed of a phospholipid bilayer, with hydrophilic heads facing outward towards the aqueous environment, and hydrophobic tails facing inward towards each other. This arrangement creates a barrier that is selective in what molecules can pass through it.

Small and non-polar molecules can easily diffuse across the membrane, while larger and polar molecules require transport proteins or channels to cross. This selective permeability allows the cell to maintain an internal environment that is distinct from the external environment.

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8. Two rabbits are bred together. One is heterozygous for agouti coat
(genotype: Cch) and the other is albino. What are the possible phenotypes
of their offspring? Construct a Punnett square to support your answer.

Answers

Answer:

- Parental cross = Cch  x chch  

- F1 = 1/2 Cch (agouti coat); 1/2 chch (albino coat) >> 1:1 phenotypic ratio

Punnett  square:  

          ch         ch

C       Cch       Cch

ch    chch      chch

 

Explanation:

A heterozygous individual is an individual who has two different gene variants (i.e., alleles) at a particular locus. In this case, individuals having the "agouti coat" trait are heterozygous carrying both 'C' and 'ch' alleles. On the other hand, a homo-zygous individual has the same allele at a given locus (here, the 'chch' genotype associated with the albino phenotype). Therefore, as observed in the Punnett Square above, when a heterozygous parent is crossed with a homo-zygous recessive parent for a single gene, alleles segregate in the gametes of both parents so an expected 1:1 phenotypic ratio will be observed.

if the number of nitrifying bacteria decreased what effect would this have on the nitrogen cycle

Answers

If the number of nitrifying bacteria decreased, it would have a negative effect on the nitrogen cycle.

Nitrifying bacteria are responsible for converting ammonia (NH3) into nitrite (NO2-) and nitrate (NO3-), which are important forms of nitrogen that can be used by plants for growth. Without nitrifying bacteria, the process of nitrification would be slowed down or stopped, leading to a decrease in the amount of available nitrite and nitrate for plants. This can have a cascading effect on the entire ecosystem, as other organisms that rely on plants for food would also be impacted.

Additionally, a decrease in nitrifying bacteria would also affect the process of denitrification, which converts nitrate back into nitrogen gas and releases it into the atmosphere. This would lead to a build-up of nitrate in the soil, potentially leading to soil eutrophication, and affecting the water quality.

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During which month is carrying capacity most likely to be limited by water?

O A. August
• B. November
c. September
O D. June

During which month is carrying capacity most likely to be limited by water?O A. August B. Novemberc.

Answers

The month that is carrying capacity that is most likely to be limited by water is: c. September.

What is the carrying capacity?

This is due to the graph's apparent abrupt dip in water level around September, which indicates a decrease in the amount of available water resources.

As a result, the low water supply during this month may limit the carrying capacity, which refers to the maximum number of people that an area can support sustainably.

Therefore the correct option is C.

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Answer:

A

Explanation:

During which month is carrying capacity most likely to be limited by water?O A. August B. Novemberc.

2. Summarize the evidence you have gathered to support your claim and explain
Microscopic organisms be so important for life on Earth

Answers

Answer:

Explanation:

to live

How are the studies performed on rainbow trout ( Oncorhynchus mykiss) and the moss Pleurozium schreberi and the desert shrub Atriplex lentiformis similar? Both studies are coupled to enzymatic activity. Both studies support the concept that species operate within a narrow optimum temperature range. Both studies support the concept that species operate within a narrow optimum temperature range and are coupled to enzymatic activity. Both studies examine the effects of microclimates and studies support the concept that species operate within a narrow optimum temperature range. Both studies examine the effects of microclimates.

Answers

Answer:

Both studies support the concept that species operate within a narrow optimum temperature range and are coupled to enzymatic activity.

Explanation:

The studies shown in the question above started from the same concept to establish the scientific experiment and had the same objective related to the investigation as temperature changes in the environment where these organisms live influences the enzymatic activity and, therefore, the functioning of their organism, being able to including modifying the environment around them. In summary, we can say that the studies sought to support the concept that species operate within a narrow range of optimal temperature and are coupled with enzymatic activity.

HELP ME PLEASE PLEASE HELP IM BEGGING YOU​

HELP ME PLEASE PLEASE HELP IM BEGGING YOU

Answers

Answer:

C

Explanation:

The hot air and cold air mix making it updraft and downdraft

why the electron carrier NADH is used exclusively in the production of ATP whereas it phosphorylated form (NADPH) is used in anabolism

Answers

According to the research, the correct answer is the electron carrier NADH is used exclusively in the production of ATP because they are electron-donor molecules that lead to the synthesis of ATP, whereas it phosphorylated form (NADPH) is used in anabolism to generate larger molecules or macromolecules.

What is NADH?

It is the molecule made up of two nucleotides, one adenine and the other nicotinamide, which can be in oxidized or reduced form, acting as an exchanger of reducing power in metabolism.

In this sense, anabolic pathways use chemical energy in the form of ATP and NADPH obtained by reducing NADP+ by accepting electrons from water, a donor that is oxidized to synthesize cellular components from simpler molecules obtained in different ways by different types of cells.

Therefore, we can conclude that according to the research, the correct answer is the electron carrier NADH is used exclusively in the production of ATP because they are electron-donor molecules that lead to the synthesis of ATP, whereas it phosphorylated form (NADPH) is used in anabolism to generate larger molecules or macromolecules.

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A gardener wanted to know if E-Z fertiliser would be good for his vegetables. He fertilised all his bean plants with E-Z fertiliser but didn’t put any fertiliser on his pepper plants. His beans didn’t do well at all, but he got a good crop of peppers. He concluded that E-Z fertiliser was no good. What are the errors in this experiment? Tick all that apply

A) Not enough subjects
B) Subjects were not similar
C) Conditions were not kept the same
D) The experiment was not reproduced

Answers

Answer:

B) Subjects were not similar

The errors in this experiment are: subjects were not similar and conditions were not kept the same. Hence the correct options are B and C.

Subjects were not similar: The gardener used two different types of plants, beans, and peppers, to test the effectiveness of E-Z fertiliser. Beans and peppers have different growth requirements, nutritional needs, and environmental preferences. By using different types of plants as subjects, the experiment introduces variability and makes it difficult to attribute the outcome solely to the fertiliser.

Conditions were not kept the same: The gardener applied E-Z fertiliser to the bean plants but did not provide any fertiliser to the pepper plants. This difference in treatment introduces a significant confounding factor, making it impossible to isolate the effect of the fertiliser on the bean plants' poor performance.

Hence the correct options are B and C.

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Do neritic nones have sudden changes

Answers

Answer:

They face pounding waves as well as sudden changes in water levels and temperature that occur with high and low tides. Why is the neritic zone particularly in living things? It is rich in organisms because sunlight passes through its shallow water enabling photosynthesis to occur.

Explanation:

several highly educated scientists study the same scientific data which of the following is most likely to explain why they may have different conclusions

Answers

Answer:

It's up to the reserchers interpretation of the results.

Explanation:

Answer:

Conclusions involve the scientist’s interpretation.

Explanation:

how much more efficient is farming an area over hunting and gathering that same area scientic

Answers

Farming is a highly efficient process of crop and animal production over an area of land than hunting and gathering which results in wastage of resources.

What is the difference between farming an area and hunting and gathering that same area?

Farming is the process of rearing animals or cultivation of crops in an area of land by a farmer.

On the other hand, hunting and gathering refers to the primitive method of hunting of animals and gathering of foods and fruits found in area of land.

There are many advantages of farming an area over hunting and gathering that same area of land. They include:

more crops can be grown and more animals can be rearedmore yield of crops and animals as wellless wastage of energy and resources in farming than in hunting and gathering

In conclusion, the process of farming is a careful systematic process while hunting and gathering is left to chance.

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The arboreal hypothesis proposes that defining primate characteristics were adaptations to life in the trees, such as Group of answer choices grasping hands, tails, and intelligence. developed vision, greater sense of smell, and grasping hands and feet. grasping hands and feet, developed vision, and greater intelligence. developed vision, greater sense of smell, and tails.

Answers

Answer:

The arboreal hypothesis proposes that defining primate characteristics were adaptations to life in the trees, such as

grasping hands and feet

developed vision

greater intelligence

Which parenting style is most closely associated with children who are inclined to be withdrawn and tend to do poorly in school?

Question 5 options:



Permissive parents




Inconsistent parents




Authoritarian parents




Authoritative parents

Answers

I think the answer is B.

The parenting style most closely associated with children who are inclined to be withdrawn and tend to do poorly in school is Authoritarian parents.

Authoritarian parenting is characterized by strict rules, high demands, and low responsiveness. Parents with an authoritarian style tend to be controlling, demanding obedience and conformity from their children without much room for discussion or negotiation. They often have a strong emphasis on discipline and have a tendency to use punishment as a means of control.

This parenting style can lead to negative outcomes for children, including social and academic difficulties. Children raised in authoritarian households may become withdrawn and lack self-confidence. The strict control and lack of warmth and responsiveness from authoritarian parents can hinder children's autonomy and independence, leading to feelings of anxiety, low self-esteem, and a tendency to withdraw from social interactions.

Furthermore, authoritarian parenting tends to limit children's opportunities for exploration and decision-making, which can negatively impact their academic performance. The rigid and demanding nature of authoritarian parenting may hinder children's motivation to learn, as they may feel pressured and fear making mistakes.

In contrast, authoritative parenting, characterized by a balance of rules and warmth, is associated with more positive outcomes for children, including better social and academic outcomes. Authoritative parents set clear expectations but also provide support, nurturing, and open communication with their children, fostering a sense of autonomy, self-esteem, and a positive attitude towards learning.

Therefore, the parenting style most closely associated with children who are withdrawn and tend to do poorly in school is Authoritarian parents.

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Which of the following galaxy types is usually made of mostly older stars

Answers

Elliptical galaxies. I hope thats correct.

During photosynthesis, plants and other photosynthetic organisms release oxygen into the atmosphere. Without this process, Earth's atmosphere would have little oxygen. Identify two reasons why photosynthesis is critical for animals to produce energy for life functions. How would this effect the animals ability to create the four main types of biomolecules.

During photosynthesis, plants and other photosynthetic organisms release oxygen into the atmosphere.

Answers

Answer:

Without oxygen from photosynthesis animals would not have oxygen for the four type of biomolecules which all require oxygen. Carbon hydrogen and oxygen is carbohydrates and same for lipids. Proteins would not have the oxygen for CHON which is carbon hydrogen oxygen and nitrogen. And nucleic acids which are CHONP carbon hydrogen oxygen nitrogen and phosphorus would not have oxygen. And without oxygen the animals would die and not be able to produce these biomolecules.

Answer: To grow and reproduce, all creatures require energy. Cellular respiration is utilized by many organisms (including all plants) to create ATP, which is needed for cellular energy. As a substrate, carbohydrates such as glucose are used in the respiration reaction. Plants produce their own fuel for respiration through photosynthesis, but humans consume food to do so. Plants would not be able to breathe if photosynthesis did not occur. Furthermore, carbohydrates created during photosynthesis are needed to construct plant cell components such as the cellulose cell wall.

Explanation: Facts... I took this last year in 9th or 10th grade.

The feeling of being in a forest of trees that are some of the biggest and oldest creatures ever to live on the planet is known as a(n) __________ ecosystem service.

Answers

A biophilia ecosystem service is the sensation of being among a forest of trees, some of the largest and oldest organisms to have ever existed on Earth. Edward O. Wilson, a biologist and naturalist, invented the word "biophilia" to explain how people are inherently drawn to the natural world.

The advantages individuals experience from being in a natural setting include bettering their physical and mental health, increasing their creativity and productivity, and feeling more content.

These advantages are referred to as "biophilia ecosystem services." In this aspect, trees are especially crucial since they offer a range of ecosystem services including clean air, water filtration, and wildlife habitat.

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Some diseases are diagnosed by looking for antibodies in the patient’s blood. Explain what a positive finding of antibodies means.

Answers

Answer:

The patient has/had the disease.

Explanation:

A positive finding means that antibodies were found in the patient’s blood. Antibodies are made when you have a disease in order to help fight off the disease. Therefore, if you have antibodies for a disease, you have or had that disease (Or were vaccinated). Hope it helps :)

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