Cells in Eukarya and in Archaea all have genomic DNA that is wrapped around proteins called
histones.
True
False

Answer:

The three areas of the tundra biome are artic, antarctic and alpine.

Answer: Photoperiod controls many developmental responses in animals, plants and even fungi These mechanisms include the detection of the light signal in the leaves, the entrainment of circadian rhythms, and the production of a mobile signal which is transmitted throughout the plant.

Answer:

Fish have gills in order to extract oxygen from the water and absorb it into their bloodstream. This allows them to breathe underwater, as opposed to mammals like humans who require air to breathe.  states that "gills require a huge amount of water to provide the necessary gas exchange. The gills also pass carbon dioxide into the water in the same way as lungs breathe it out into the air. As the water passes over the gills, the blood in the fish absorbs oxygen from the water."

Option 2, "to absorb oxygen from the water into the bloodstream," is the correct answer. Gills do not absorb nutrients from the water into the digestive system (option 1), transport oxygen to the lungs (option 3), or regulate body temperature (option 4).  also mention that gills are used by fish to expel nitrogenous waste and regulate the pH or acidity in their bodies, but the primary function of gills is to extract oxygen from the water and absorb it into the bloodstream.

Explanation:

Explanation:

The small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use. Special cells help absorbed nutrients cross the intestinal lining into your bloodstream.

special cells are help absorbed nutrients cross the intestinal lining in to your bloodstream your blood carries simple sugars amino acids glycerol and some vitamins & salts to the liver your liver stores processes and delivers nutrients to the rest of your body when needed.

Answer:

D. 12.50a + 9c + 25

Explanation:

Assuming that the variables:

a = adults

c = children

Set the expression.

Adult tickets cost $12.50 (given): 12.50a

Child tickets cost $9 (given): 9c

"Other expenses" cost a flat sum of 25: +25

12.50a + 9c + 25 is your answer, or D).

~

Answer:

75%

Explanation:

The allele for purple flowers (capital P) is dominant.

The allele for white flowers (lowercase p) is recessive.

If one allele is capital P, it doesn’t matter if the other allele is another capital P or a lower case p, the capital P will dominate and purple flowers will show up.

The Punnett Square shows:

PP, Pp, Pp, and pp

• 3 of the offspring have at least one dominant and capital P, so purple flowers show up.

• 1 of the offspring has two lowercase and recessive alleles (p), so white flowers show up.

3/4 or 75% of the offspring will have purple flowers.

\(\huge\boxed{Option A}\)

Pea plant has purple color flowers dominant over white color flowers.

Purple flower dominant allele is P

White Flower recessive allele is p

We would get White flower pea plant only when the recessive allele is in HOMO.ZYGOUS condition

_________________________________________________________

Hom.ozygous Dominant Alleles: PP (Purple Flower)

Heter.ozygous Dominant Alleles: Pp Purple Flower)

Hom.ozygous Recessive Alleles: pp (White Flower)

Whenever we cross Heterozygous Dominant(Pp) purple flower with another Heterozygous dominant (Pp purple flower), we get 75% of the flowers PHENOTIPICALLY(physical appearance) white flowered, and 25 white flowered Because as you can see in the picture,

The P1 is Pp

The P2 is Pp

When we cross them,

It has 4 offsprings,

PP Hom.ozygous Purple flower  

Pp Heterozygous Purple flower

Pp Heterozygous Purple flower

pp Hom.ozygous white flower

Thus the answer is 75% as there are phynotypically 3 purple flowers present

Answer: Yogurt has less lactose than most dairy products. Everyone responds to dairy differently, so a persons tolerance may be different than another person who’s also lactose intolerant.

Explanation:

The average of the following set of measurements is 20°C.

To find the average of the given set of measurements

Given:

Set of measurements = 27°C, 12°C, 31°C, 19°C, 23°C, 11°C, 17°C

Number of Observations = 7

Average = Sum of observations/Total number of observations

Sum of observations = 27°C+12°C+31°C+19°C+23°C+11°C+17°C

= 140

Total number of observations = 7

Substitute the values in the formula

= 140/7 = 20°C

Therefore, the average of the following set of measurements is 20°C

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Answer:

last one

Explanation:

everything formed almost immediately

a earth like planet took years to have life making it terrestrial

Answer:

AUG UCU UCG UUA UCC UUG

The answer can be found in options a, b, and d. You should just work out twice a week for 15 to 30 minutes. Each intense workout should focus on several different muscle groups. When you can definitely finish three sets of 10 reps, up the weight. To increase flexibility, some guidelines for frequency and intensity are provided.

The maximum force a muscle can exert in a single action against stability is referred to as muscular strength. Strong and resilient muscles are important for a variety of reasons. To accomplish work like opening doors, lifting boxes, or cutting down trees without becoming fatigued, build up your strength. reduce the likelihood of harm.

As a result, we can say that options a, b, and d provide the solution. You should just work out twice a week for 15 to 30 minutes. Each exercise session should focus on several different muscle groups. When you can easily finish three sets of 10 reps, up the weight. To increase flexibility, some suggestions for frequency and intensity are provided.

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Complete Question:

Select all that apply.

Which of the following guidelines are given in regard to intensity and frequency, to improve muscular strength?

A. Workout sessions should be limited to twice a week for 15-30 minutes.

B. During each workout session, several different muscle groups should be worked.

C. Exercises for each muscle group should include four to five sets of 10 to 15 repetitions each.

D. Increase the weight only when you are able to complete three sets of 10 repetitions with ease.

Answer:

B. Radicular cysts are usually associated with the roots of carious or non-vital primary teeth.

D. Reduced regeneration of red blood cells is identified by the presence of poikilocytosis, microcytes with reduced number of reticulocytes.

D. A bone resorption size of more than 10 mm corresponds to cystic formation.

E. The involvement of extraoral fascial spaces, such as buccal space infections or submandibular space infections, is a criterion by which to judge the seriousness of the infection.

B. The primary goal in the surgical management of infection is to provide drainage of accumulated pus and necrotic debris.

D. Drainage from the abscess cavity usually stops after 5 to 7 days.

E. Indications for antibiotic use in oral surgery include severe pericoronitis, acute-onset infection with diffuse swelling and moderate-to-severe pain, patients who have infections of any severity, and infections that have progressed to involvement of extraoral fascial spaces.

Explanation:

Answer:

If humans and animals could do photosynthesis, there would be several potential benefits and drawbacks:

Benefits:

Energy production: Photosynthesis is the process by which plants and some bacteria convert light energy into chemical energy, which is used to fuel metabolic processes. If humans and animals could do photosynthesis, they could potentially produce their own energy from sunlight, reducing their reliance on other energy sources.

Reduced food requirements: Photosynthesis could potentially reduce the need for food in humans and animals, as they could use sunlight to produce some nutrients and energy. This could be particularly beneficial when food is scarce, such as during famine or in space travel.

Environmental sustainability: Photosynthesis is a crucial process in the carbon cycle, converting carbon dioxide into organic compounds. If humans and animals could do photosynthesis, they could potentially reduce their carbon footprint and contribute to environmental sustainability.

Drawbacks:

Limited energy production: While photosynthesis is an efficient process for plants, it may not be as efficient in humans and animals. It is possible that the energy produced through photosynthesis may not be sufficient to meet the energy requirements of humans and animals, particularly if they are engaging in high-energy activities.

Limited nutrient production: Photosynthesis produces mainly glucose and other simple sugars, which may not be sufficient to meet all the nutritional needs of humans and animals. This could lead to deficiencies in certain nutrients, such as protein and essential amino acids.

Evolutionary limitations: Humans and animals have evolved to obtain energy and nutrients from food, and it is unclear whether the ability to do photosynthesis could be developed through evolution. It is also possible that the ability to do photosynthesis could have negative impacts on other aspects of human and animal biology, such as the immune system or reproductive health.

In summary, the ability for humans and animals to do photosynthesis could have some potential benefits, such as energy production, reduced food requirements, and environmental sustainability. Still, it may have some drawbacks, such as limited energy and nutrient production and evolutionary limitations.

Explanation:

Changing the shape of the villi, such as by flattening them or reducing their number, would reduce the surface area available for nutrient absorption. As a result, fewer food particles would be able to be absorbed in a fixed time period, which would cause a decrease in the percentage of food particles absorbed.

The villi are finger-like projections that line the small intestine and increase the surface area for nutrient absorption.

Changing the shape of the villi can change the surface area of the cell membrane that is available for small food molecules to interact with. By increasing the surface area of the membrane, there is a higher chance that food particles will hit the membrane at a spot where they can pass through, resulting in more food particles being absorbed in a fixed time period.

Conversely, reducing the surface area of the membrane can decrease the chance of food particles hitting a membrane door and passing through, resulting in fewer food particles being absorbed.

Therefore, changing the shape of the villi can affect the overall efficiency of nutrient absorption, even if the probability of a food particle hitting a membrane door remains constant.

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Answer:

importance of biogeochemical cycles through the ecosystem the cycle move the essitinal elements for life to sustain they are vitil as the recycle Store them to regulate the vital elements through the physical facets

Answer:

Issues with the Molecular Clock

Though most changes occur at a constant rate, the rate of change may vary in different genes, at different times, and among different organisms.

Explanation:

Issues with the Molecular Clock

Though most changes occur at a constant rate, the rate of change may vary in different genes, at different times, and among different organisms.

The process of Glycolysis is a catabolic process  in which two molecules glucose goes through a ten- step pathway and yield two molecules of pyruvate . It is a major part of carbohydrate metabolism .

Mechanism Of Glycolysis

The glycolysis is also known as EMP pathway and it is involved in both aerobic and anaerobic conditions .There are two phases in the mechanism of glycolysis in which 5 reactions takes place in each phase and the process of glycolysis takes place in cytosol

Preparatory phase refers to the  generation of two molecules of  glyceraldehyde 3-phosphate from one molecule of glucose which further goes into the payoff phase . In this phase two molecules of ATP are used and two regulatory enzymes were involved in this reaction .

Payoff phase refers to the further break down of two molecules of glyceraldehyde3-phosphate to two molecules of pyruvate . In this phase four molecules of ATP and two molecules of NADH are generated . In this phase only one regulatory enzyme is involved which is the breakdown of PEP to pyruvate  .

Both the phases of glycolysis takes place in the cytoplasm and there are  three enzymes that involved in regulating the glycolytic pathway .This process is also known as the catabolic process .

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Answer:

The best answer prompt you should use to avoid copying is that most of the world uses fossil fuels as energy for transportation and that to get rid of using it would take centuries as well as finding a way to provide energy with a renewable source. The use of fossil fuels would negatively affect the biodiversity in neighborhoods and the surrounding environments because the usage of fossil fuels causes pollution to the air, water, and the atmosphere that can lead to other problems.

Explanation:

It's just simple logic but can be confusing at first read the question and think about it to help.

Answer:

just explain

Explanation:

just do it

1.    0.917 M    

2.   0.268 M

1.  Finding number of moles of KCl

Number of moles of KCl = (mass of KCl) / (molar mass of KCl)

Number of moles of KCl = 10.25 g / 74.55 g/mol

Number of moles of KCl = 0.1376 moles

Then converting ml to L;

Volume of solution = 150 mL

Volume of solution = 0.150 L

Now we can calculate the molarity:

Molarity = (moles of solute) / (volume of solution in liters)

Molarity = 0.1376 mol / 0.150 L

Molarity = 0.917 M

Therefore, the molarity of the solution is 0.917 M.

2.Number of moles of Ca(OH)2 = (mass of Ca(OH)2) / (molar mass of Ca(OH)2)

Number of moles of Ca(OH)2 = 5 g / 74.09 g/mol

Number of moles of Ca(OH)2 = 0.067 moles

Convert the volume of the solution (in milliliters) to liters:

Volume of solution = 250 mL

Volume of solution = 0.250 L

calculate the molarity:

Molarity = (moles of solute) / (volume of solution in liters)

Molarity = 0.067 mol / 0.250 L

Molarity = 0.268 M

Therefore, the molarity of the solution is 0.268 M.

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A. The given statement "A mutation to an organism's DNA will always result in an adaptation" is true.

What is a mutation?

"A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors."

What is a DNA?

"Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique."

What is an adaptation?

"Adaptation is the biological mechanism by which organisms adjust to new environments or to changes in their current environment."

Can a DNA mutation create an adaptation?

"Yes, a DNA mutation can create an adaptation. Mutations are a source of genetic diversity in populations, they can have widely varying individual effects. In some cases, mutations prove beneficial to an organism by making it better able to adapt to environmental factors."

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Answer:

d. Nuclear energy is converted to radiant energy

Answer:

Cells are the least complex part of a plant :>

Explanation: