what is the role of nucleic acid

​

Answer:

Some cells don't divide and last you a life time such as many of those in the central nervous system other cells such as stems called cell populations have their telemeres repeatedly extended by the enzyme telomerase other cells are never replaced and live as long as we do .

I hope this answer might help u

The anaerobes were the first bacteria to exist on Earth, around 3.8 billion years ago. At that time, there was no oxygen in the atmosphere, therefore anaerobes were the only organisms capable of surviving.

For at least the first 1.5 billion years of the history of life, bacteria have been the sole known occupants of the planet. According to genetic analyses, the earliest and most primitive bacterial lineages were anaerobic, and each lineage independently developed the capacity to thrive in the presence of oxygen. There wasn't a lot of oxygen gas in the first atmosphere. So much oxygen would have been taken prior to photosynthesis by diminished geothermal outputs and rock weathering.

To learn more about anaerobic organisms please click on the given link: https://brainly.com/question/11688275

#SPJ4

The correct option that lists materials in order by their ability to allow the flow of electrons, from least easily to most easily, is Insulator, Semiconductor, and Conductor, which is in Option A.

The ability of a material to conduct electricity depends on the number of free electrons that are available to move through the material. In an insulator, there are very few free electrons, which means that the material does not conduct electricity very well. Insulators are typically used to prevent the flow of electricity, for example, in electrical wiring, where plastic or rubber coatings are used to insulate the copper wires.

Hence, the correct option that lists materials in order by their ability to allow the flow of electrons, from least easily to most easily, is Insulator, Semiconductor, and Conductor, which is in Option A.

Learn more about the electron, insulator, etc. here.

https://brainly.com/question/19678249

#SPJ5

The effects of sigma, time, cost, and other factors. The amount of production improvement that a solution can produce is measured by its sigma impact.

When two chemicals, known as a solvent and a solute, are combined, a solution results. Solution is the result of the union of the solute and solvent. They frequently involve the dilution of one material into another, such when salt is dissolved in water.

A homogenous mixture from one or maybe more solutes that have been dissolved in a solvent is known as a solution. The material that a solute dissolves in to create a homogenous mixture is known as a solvent. The component that dissolves in a solvent to create a homogenous mixture is known as a solute.

To know more about Solutions visit:

https://brainly.com/question/30665317

#SPJ1

Answer:

The answer is D

Explanation:

it is the only one that makes sense

Answer:

Atoms join together to form elements, elements join together to form compounds.

hope this helps <3

An example of a situation where gene expression without regulation could potentially harm an organism is in the development of cancer.

Cancer is often caused by mutations in genes that control cell growth and division. These mutations can cause these genes to be expressed in an unregulated manner, leading to uncontrolled cell growth and the formation of tumors.

Without regulation of gene expression, the cell can continue to divide and grow out of control, eventually leading to the development of cancer. Gene regulation mechanisms, such as DNA methylation, histone modification, and microRNA, are critical in preventing the uncontrolled expression of genes that can lead to cancer.

Thus, the regulation of gene expression is essential for maintaining normal cellular function and preventing the development of diseases like cancer.

To learn more about gene expression here

https://brainly.com/question/30969903

#SPJ1

Dendritic cells and macrophages ingest and break down foreign substances and cellular waste in a process known as phagocytosis. An essential function of the immune system is phagocytosis, in which specialised cells called phagocytes identify and take in foreign substances like pathogens or cellular waste in order to remove them from the body.

The capacity to grow pseudopodia around the target material by macrophages and dendritic cells creates a phagosome, which is then internalised by the cell.

The phagosome joins with lysosomes to create a phagolysosome, where the substance it has absorbed is digested and destroyed by enzymatic processes.

Learn more about foreign material at:

https://brainly.com/question/31227471

#SPJ1

Answer:

Well I believe mitosis is the reproduction of 2 cells, while meiosis is 4 cells

Answer: answer is D

Explanation:

I choose a random answer and this was the correct choice.

When the contents of a plant cell push out on the cell wall with the same amount of force as water trying to enter the cell Osmosis of water into the plant cell stops. Thus, option D is correct.

Osmosis lets an animal cell absorb water from the intestines into the blood. These are some further instances or examples of osmosis. Osmosis is responsible for the soil's ability to absorb water.

The concentration is greater in the plant roots than in the soil. Water enters the roots as a result. Osmosis is the process by which water molecules move from a solution with a high concentration to a solution with a lower concentration over a semi-permeable membrane.

Learn more about osmosis Visit:

brainly.com/question/2811191

#SPJ2

They became extinct, so they did not exist when the younger rock layers formed. Option D.

The most likely scenario based on the information provided is that the organisms that became fossilized in older rock layers became extinct, and therefore, they did not exist when the younger rock layers formed.

Fossils are the preserved remains or traces of organisms from the past, and they provide valuable insights into the history of life on Earth. The distribution of fossils in rock layers follows the principle of superposition, which states that younger rock layers are deposited on top of older ones.

This implies that the fossils found in older rock layers represent organisms that lived in the past and were preserved through the fossilization process.

If the older rock layers contain fossils of many kinds of organisms that are not found in younger rock layers, it suggests that those organisms no longer existed by the time the younger rock layers formed. The absence of their fossils in younger layers indicates that either the organisms became extinct or their populations shifted to different habitats or regions where their remains were not preserved as fossils.

This phenomenon aligns with the concept of extinction, which is the complete disappearance of a species or a group of organisms. Extinction can occur due to various factors such as environmental changes, competition, predation, or other selective pressures.

Organisms that became extinct would not be present in subsequent rock layers because they were no longer alive or did not have a viable population to leave behind fossil remains.

Therefore, the most reasonable explanation is that the organisms that became fossilized in older rock layers became extinct, and this is why they are not found in younger rock layers. SO Option D is correct.

For more question on extinct visit:

https://brainly.com/question/30957278

#SPJ8

Answer:

A spirometer is a device that measures the amount of air you take in per breath.

Explanation:

The spirometer measures the air from volume, and can compare it to someone of your same age, height, and gender. This is helpful to tell if your lungs aren't working properly to help doctors help you with your problems.

Answer:

the probability to have a 4 toed baby is 0% chance and the probability for a normal toed baby is 100%

Explanation:

A tiny electric message moves through a long part of a brain cell called the axon. When a message goes to the end of a nerve, it sends chemicals called neurotransmitters. These substances move through a tiny gap and attach to special parts of another nerve cell's outer covering.

Messages called impulses are sent from one nerve cell to another through a connection called a synapse. This process is called synaptic transmission. Synapses are connections between nerve cells or between nerve cells and other cells, like muscles or glands.

The neuron sending the signal is called the presynaptic neuron. When a signal travels down a nerve cell, it causes little sacs called vesicles to release chemicals called neurotransmitters.

Read more about impulse here:

https://brainly.com/question/229647

#SPJ1

(ver-TEE-brul KAH-lum) The bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone. The vertebral column encloses the spinal cord and the fluid surrounding the spinal cord. Also called backbone, spinal column, and spine. Enlarge

The most appropriate time to provide contraception after delivery is 45 days. Hence option (A) is the answer.

In general, women with additional risk factors for venous thromboembolism should not take combined hormonal contraceptives for the first 21 days postpartum, and they should not use them for up to 42 days postpartum. However, after 42 days postpartum, they may be used without restriction.

If you intend to nurse your child, you should refrain from taking the majority of hormonal birth control methods for 4 to 6 weeks following your pregnancy. Because your milk production could be impacted by the hormones. They are often ready for use three weeks after delivery if you don't intend to breastfeed. To avoid unwanted pregnancies, however, effective contraception is necessary up until menopause.

To learn more about contraception, visit:

https://brainly.com/question/29952276

#SPJ1

The colors for the stars are red, white, blue-white, white, and blue, and their temperature are 3,910 K, 3,500 K, 25,200 K, 22,400K, 5,780K, 9,600 K.

A star is a type of celestial body that can be set apart from others because it shines due to inner radiation. Moreover, stars are classified by:

Now, let's identify the color and temperature of the stars:

Learn more about stars in: https://brainly.com/question/2166533

Some diets and lifestyles that promote healthy living include:

A diet that includes a variety of foods, such as vegetables, fruits, low-fat dairy products, lean meats and other sources of protein, and whole grains promotes healthy living.

Some diets and lifestyles that promote healthy living include:

Learn more about healthy living at: https://brainly.com/question/29591292

#SPJ1

The correct response is a haploid unicellular stage.

Fungus hyphae have haploid nuclei, whereas animals and plants have diploid nuclei.

When two hyphae collide, a zygosporangium is formed, which is a single cell with multiple haploid nuclei. The zygospore is the cell in the zygosporangium that contains the nuclei. Diploid nuclei are formed when haploid nuclei combine. Spores form when diploid nuclei undergo meiosis and become haploid nuclei. Mitosis is the process by which multicellular haploid fungi are born from spores.

The most visible life stage in a haploid-dominant life cycle is the multicellular (or occasionally unicellular) haploid stage.

Sexual reproduction in fungi is classified into three stages: plasmogamy, karyogamy, and meiosis.

Learn more about " sexual life cycles " to visit here;

https://brainly.com/question/30036416

#SPJ4

correct question:

Which of the following characteristics are part of the sexual life cycle of gotrmost fungi but are not part of the sexual life cycles of plants or animals?

a. Gametes

b. a unicellar hapoid stage

c. a zygote stage

c. fertilization

Answer:

C. The mRNA will be changed from U-A-C to U-A-G during transcription.

Explanation:

Transcription is the process where the mRNA strand is formed, using a DNA strand as a template strand.

The bases on an mRNA are adenine [A], uracil [U], guanine [G] and cytosine [C], where adenine is complementary to uracil and guanine is complementary to cytosine.

[Translation is the process where a polypeptide chain- a sequence of amino acids, is formed. tRNA molecules carry specific amino acids and bind to the codon on the mRNA which is complementary to the anticodon on the tRNA. Thus option A and D is wrong.]

[Option B is wrong because the bases are not complementary.]

The change in internal energy of this gas sample is equal to: c. 715 J.

Given the following data:

Mathematically, the the First Law of Thermodynamics is given by this formula:

\(\Delta H = Q-W\)

Where;

Substituting the parameters into the formula, we have;

\(\Delta H =874-159\\\\\Delta H = 715\)

Change in internal energy (ΔH) = 715 Joules.

Read more on enthalpy change here: brainly.com/question/11628413

Photosynthesis and cellular respiration are two close related and complementary processes. Photosynthesis produces organic molecules and releases oxygen, which are used during cellular respiration to produce water, ATP, and CO₂.

Photosynthesis is a process plant cells go through when absorbing sunlight.

During photosynthesis, light energy and inorganic compounds are used to produce organic compounds -glucose- and release oxygen.

It occurs in chloroplasts and involves two stages: light-dependent and light-independent reactions.

• During light-dependent reactions, oxygen is released, while ATP and NADPH are produced. Both of them are used during light-independent reactions. It occurs in the thylakoid membrane in the electron transporter chain.

• The light-independent reaction occurs in the Calvin cycle in the stroma. During this stage, carbon from CO2 is fixated, and sugar molecules are synthesized

Cellular respiration is the process through which cells use organic compounds to produce energy.

Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.

1. Occurs in the presence of free oxygen.

2. Series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules.

3. Respiration occurs in the mitochondria.

4. Takes place in two steps or stages: Krebs cycle and electron transporter chain.

5. Glycolysis and Krebs cycle produce electrons, which then travel along the electron transporter chain while releasing energy, and ATP is produced.

1. Occurs in the absence of free oxygen

2. Series of reactions by which using pyruvate (product of glycolysis) 2 ATP molecules van be produced.

3. There are two ways in which anaerobic respiration can be produced: lactic fermentation and alcoholic fermentation.

4. Lactic fermentation produces lactic acid and 2 ATP

5. Alcoholic fermentation occurs in two steps, and the final products are ethylic alcohol, 2ATP, and 2 CO₂

6. The whole anaerobic process occurs outside the mitochondria.

Photosynthesis is complementary to cellular respiration.

Table in the attached files

You can learn more about photosynthesis and cellular respiration at

https://brainly.com/question/29771613

#SPJ1

This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

For more such questions on ecology, click on:

https://brainly.com/question/842527

#SPJ11

Answer: The chloroplasts are filled with a special green chemical (pigment) called chlorophyll. This green pigment helps the cell trap light energy for photosynthesis. Onion cells are not green. They get no light, so do not need chloroplasts.

HOPE THAT HELPED

The main point of the article "State “Personhood” Laws Threaten Embryonic Steam Cell Research" is that the passing of "personhood" laws in some states of the United States, which define life as beginning at conception, poses a threat to embryonic stem cell research. The article argues that these laws could hinder or even criminalize research involving the destruction of human embryos, which is a critical aspect of embryonic stem cell research. The article also discusses the potential consequences of such laws on medical research, including the inability to develop treatments for a wide range of diseases and conditions

1) Easily spread which will ensure in even distribution patterns

2)Capatible in particle size whether it's smooth or hard particles

3)Free from additives and contaminants

4)Can be easily applied

EXPLAINATION;

Increases yield and ensures the right amount of nutrients the plant needs