8. The process of cell division is called mitosis.

TRUE
FALSE

According to the given information euglena were the first eukaryotic organisms on Earth.

Eukaryotes are organisms whose cells have membrane-bound organelles in addition to a nucleus. Eukaryotic organisms come in a wide variety, along with most algae, all mammals, vegetation, fungus, and protists. Eukaryotes can have a single cell or many cells. They are referred to as the "powerhouse of the cell" because they generate energy (ATP). helps to control the metabolism of cells.

Humans, fungi, protists, and plants are eukaryotes cell examples. They have chromosomes, which organize the genetic material. Eukaryotic have the Golgi, mitochondrial, golgi apparatus, and nucleus. Let's look more closely at the elements of eukaryotic cells.

To know more about Eukaryotic organism visit:

https://brainly.com/question/8826896

#SPJ13

Answer:

the ciliated epithelium tissue helps to collect the ovum why?

In eukaryotes, the maturation of mRNA involves three posttranscriptional modifications, including 5'-capping, 3'-poly(A) tail addition, splicing.

The capping modification occurs at the 5' end of the mRNA, where a guanine nucleotide is added in a reverse orientation with a methyl group attached to the nitrogen of the guanine. Splicing involves the removal of introns from the pre-mRNA, leaving only exons, which are then joined together.

Finally, polyadenylation adds a poly(A) tail to the 3' end of the mRNA, consisting of multiple adenine nucleotides.

Therefore, the correct answer to the question would be the mRNA molecule that has undergone all three posttranscriptional modifications, including capping, splicing, and polyadenylation.

Your question is incomplete but most probably your full question was:

Which of the following contains the three posttranscriptional modifications often seen in the maturation of mRNA in eukaryotes? removal of exons,insertion of introns, capping

Learn more about mRna at

https://brainly.com/question/29314591

#SPJ11

It is the total amount of organic matter produced by the plants that is available to the herbivores in an ecosystem. NPP = GPP - Respiration losses Therefore, the given statement "the amount of energy made available by plants to other organisms is referred to as productivity" is correct.

The amount of energy made available by plants to other organisms is referred to as productivity. Productivity is the amount of biomass produced per unit area per unit time in an ecosystem. Productivity can be calculated through two types: Gross Primary Productivity (GPP) and Net Primary Productivity (NPP).Gross Primary Productivity (GPP): It is the total amount of organic matter produced by the plants through photosynthesis in a given period of time. GPP is the total photosynthetic rate of all the producers in an ecosystem. GPP

= NPP + Respiration losses Net Primary Productivity (NPP): It is the amount of organic matter produced by plants after accounting for the respiration losses from GPP. It is the total amount of organic matter produced by the plants that is available to the herbivores in an ecosystem. NPP

= GPP - Respiration losses Therefore, the given statement "the amount of energy made available by plants to other organisms is referred to as productivity" is correct.

To know more about herbivores visit:

https://brainly.com/question/16786804

#SPJ11

It is located in the parietal lobe insula.

How many lobes are in the brain?

The cerebral cortex is divided lengthways into two cerebral hemispheres connected by the corpus callosum. Traditionally, each of the hemispheres has been divided into four lobes: frontal, parietal, temporal and occipital.

Frontal lobe -Function: Control of voluntary movement, involved in attention, short term memory tasks, motivation, planning, speech

Temporal lobe-Function: Decoding sensory input (visual and auditory) into derived meanings

Parietal lobe-Function: Integrates proprioceptive and mechanoceptive stimuli, involved in language processing

Occipital lobe-Function: Center for visual processing

To learn more brain, click the link below:

https://brainly.com/question/28900747

#SPJ4

Explanation:

many people think Polaris is the sky's brightest star.... that's because it's located nearly at the north celestial pole, the point around which the entire Northern sky turns..... shining in the northern sky every night, from northern Hemisphere locations.... diagram or big Dipper with arrow from two stars to Polaris.

The fibroid capsule is the innermost layer of connective tissue around the kidney, aiding in preventing infection.

The adipose capsule of the kidney, a strong, fibrous layer that surrounds the kidney, is covered in this layer of peri renal fat.  Each kidney has a renal capsule, a thin membrane covering its outside. The kidney mass is supported by the capsule's strong fibers, which are primarily collagen and elastin (fibrous proteins), which also aid to shield the kidney mass from damage.

To learn more about kidney click here:

https://brainly.com/question/13259057

#SPJ4

The formation of acetone which eventually leaves the body through the lungs causes breath with a fruity smell is ketosis.

Ketone bodies are formed in liver cells through the breakdown of fatty acids. They are released into the blood after the glycogen stores in the liver are depleted. Oxygen and glucose are used by cells to produce the energy-rich ATP molecules needed to maintain cellular metabolism. This process is called cellular respiration. The lack of mitochondria means the cells don't use the oxygen they carry.

It produces the energy carrier ATP through fermentation glycolysis of glucose and lactate production. When glycolysis is blocked red blood cells lose their membrane potential and eventually die. Mature mammalian red blood cells are incapable of aerobic respiration, the process by which organisms convert energy in the presence of oxygen, and glycolysis is the sole source of ATP.

Learn more about glycogen here:-https://brainly.com/question/27998214

#SPJ4

From the combustion results 14.5 mol of CH₄ in excess oxygen.

The combustion reaction is an example of an exothermic reaction because the heat generated from the combustion process is transferred from the system to the surroundings. In the combustion reaction that occurs in fire is the release of energy to the surroundings (producing heat) which causes the surrounding air (environment) to become hotter.

The balanced reaction shows that for every molecule of CH₄ consumed, one molecule of CO₂ is formed. Exactly 14.5 moles of CH₄ are needed for 14.5 moles of CO₂. Note that for every molecule of CO₂ produced, only 2 molecules of O₂ are needed.

                              CH₄ + 2O₂ → CO₂ + 2H₂O

You need 14.5 x 2 = 29 moles of O₂.

So, in this question, we get an excess of O2.

Learn more about the combustion reaction at https://brainly.com/question/13251946

#SPJ4

Pelvic exenteration  is the surgical removal of pelvic organs.

Pelvic exenteration is the surgical removal of the organs present in the pelvis, including the bladder, cervix, rectum, and uterus, depending on the disease's extent. It is a significant surgical procedure that is commonly done to treat locally advanced rectal, gynecological, or urological malignancies. Pelvic exenteration is frequently carried out in conjunction with other therapies such as chemotherapy and radiotherapy.

Below are some key facts on pelvic exenteration:

Patients who have pelvic exenteration require a prolonged hospital stay, with a recovery period of 4-6 weeks.

External beam radiotherapy, along with concurrent chemotherapy, may be used to reduce the size of the tumor prior to the surgery.

Surgery is a complex procedure that may take many hours to complete.

The goal of the procedure is to remove all visible tumors, regardless of whether or not they are cancerous. The results of pelvic exenteration are frequently favorable, with long-term survival rates of up to 80%.

However, the operation is also associated with significant risks, including infection, bleeding, and injury to surrounding structures.

Know more about pelvic exenteration:

https://brainly.com/question/32244346

#SPJ11

Answer: Here is the answer. Please mark me brainlist.

Explanation:

School systems have limited financial resources with which to pursue their objectives and the

design of school funding policies plays a key role in ensuring that resources are directed to where they

can make the most difference. This report seeks to assist governments in achieving their education

policy objectives through the efficient and equitable use of financial resources. It provides a

systematic analysis of school funding policies by looking into the organisation of responsibilities for

raising and spending school funds, the design of mechanisms to distribute funding to schools, the

procedures for planning education budgets, and the practices for monitoring, evaluating and

reporting how funding has been used. Eighteen school systems were actively engaged in the

preparation of this report. In addition, the analysis considers the broader research and policy

literature on school funding approaches in other OECD and partner countries.

This report is the first in a series of thematic comparative reports which bring together the

findings of a major OECD project on the effective use of school resources, the OECD Review of Policies

to Improve the Effectiveness of Resource Use in Schools (School Resources Review).

Forthcoming reports will focus on the organisation of the school offer and on the management of human

resources in school education. The School Resources Review was launched in 2013 to help countries

exchange best practices and learn from one another, and to gather and disseminate evidence of what

works in school resource policies. The project highlights issues and explores ideas for policy

development that may be difficult to raise in national debates. It seeks to inform discussions among

stakeholders with new and different perspectives that are based on research and evidence from

different countries. This ambition also underpins the idea of the thematic comparative reports and the

work behind them.

Answer:

DNA is a double-stranded molecule that looks like a spiral staircase.

Explanation:

The statement that best describes the structure of a DNA molecule is as follows:

Thus, the correct option for this question is C.

DNA stands for Deoxyribonucleic acid. It may be defined as a type of molecule that contains the genetic information responsible for the development and function of an organism. DNA is known as the genetic material of most organisms.

According to the context of this question, the double helix of DNA structure was first proposed by James Watson and Francis Crick in the year 1953. They proposed this model on the basis of work done by Rosalind Franklin.

According to James Watson and Francis Crick, the DNA structure is double helical and appears like a spiral coiled staircase. This structure is governed by the nucleotide present between them by hydrogen bonding.

Therefore, DNA is a double-stranded molecule that looks like a spiral staircase is a statement that best describes the structure of a DNA molecule. Thus, the correct option for this question is C.

To learn more about DNA, refer to the link:

https://brainly.com/question/16099437

#SPJ2

Answer:B

Explanation: think of Newton's laws and how they can not be changed and also how they can be proven time and time again

Answer:

im 99.8% sure it is B

Individuals who are heterozygous for the sickle-cell allele have one normal allele and one mutated allele. The mutation causes a change in the shape of hemoglobin, the protein responsible for carrying oxygen in the blood.

Under normal conditions, individuals with one normal allele are able to produce enough normal hemoglobin to function properly. However, under certain circumstances, such as low oxygen levels or physical exertion, the mutated hemoglobin can clump together, causing red blood cells to become misshapen and break down. This can lead to a range of health problems, including anemia, pain, and organ damage. So, the phenotypic effects of the sickle-cell allele are due to changes in gene expression that are triggered by specific environmental or physiological conditions.

To know more about hemoglobin please click :-

https://brainly.com/question/30116779

#SPJ11

In general, the chocolate closest to the candle would start melting first, followed by the chocolate pieces progressively farther away.

The exact time it would take for each chocolate piece to start melting would depend on the factors like the size and shape of the chocolate pieces.

What is chocolate melting?

Chocolate melting refers to the process of changing solid chocolate into a liquid state by heating it. Chocolate is made up of cocoa solids, cocoa butter, sugar, and other ingredients such as milk powder or flavorings. When heated, the cocoa butter in chocolate melts and becomes a liquid, which makes the chocolate soft and malleable.

Melting chocolate is a crucial step in many chocolate recipes, such as truffles, ganache, and chocolate-covered fruits or nuts. It can also be used as a topping or filling for cakes, cookies, and other desserts.

There are several ways to melt chocolate, including using a double boiler, microwave, or oven. It's important to melt chocolate slowly and gently, as overheating can cause the chocolate to become grainy, separate, or scorch. It's also important to stir the chocolate frequently during melting to ensure that it melts evenly and doesn't burn.

To know more about chocolate melting, visit:

https://brainly.com/question/19005260

#SPJ1

Answer:

False

Explanation:

a physical change is only when it changes it form or appearance.

A chemical change is when it transforms to another substance.

Be careful because even if there is a change in how it looks, it could still be a chemical change but the general definition is the one above.

To the government, a formal letter describing suggested solutions to ecological issues should be addressed.

Environmental and ecological issues are issues that affect the environment and its ecosystems. These problems frequently concern the interplay of human activities with the environment. It has negative impacts on the balance and efficiency of ecosystems. Environmental laws can be passed to resolve them.

A formal letter is a kind of written communication that follows a precise format and tone. It is typically used for official or professional purposes, such as in business, academia, government, or legal settings.

Learn more about ecological issues, here:

brainly.com/question/14043879

#SPJ1

The population, to the nearest whole number, of bacteria after 15 days is approximately 4,769 bacteria, The correct option is E, None of the above.

To find the population of bacteria after 15 days, we can use the formula for exponential growth:

N = N₀ * \((1 + r)^t\)

Where: N = Final population after time t N₀ = Initial population r = Growth rate per time period t = Time period

Given: N₀ = 500 bacteria r = 50% per day (or 0.5) t = 15 days

Plugging in the values, we have:

N = 500 * \((1 + 0.5)^{15\)

Calculating this expression:

N = 500 * \((1.5)^{15\) N

= 500 * 9.537 N

= 4,768.5

Thus, the correct option is E, None of the above.

To learn more about bacteria follow the link:

https://brainly.com/question/15490180

#SPJ4

The question is inappropriate; the correct question is:

The initial population of a bacterial colony is observed to be 500 bacteria. The population shows a growth rate of 50% per day, and the carrying capacity of the surrounding area is estimated to be 2,000,000 bacteria. To the nearest whole number, find the population of bacteria after 15 days.

A.  165,822 bacteria

B.  622,707 bacteria

C.  903,430 bacteria

D.  2,000,000 bacteria

E.  None of the above

Answer:

The function of root hairs is to collect water and mineral nutrients that are present in the soil and take this solution up through the roots to the rest of the plant. As root hair cells do not carry out photosynthesis they do not contain chloroplasts.

Explanation:

hope this helps!!

Answer:

a plant hormone which promotes leaf detachment, induces seed and bud dormancy, and inhibits germination.

Abscisic acid (ABA) is a plant hormone. ABA functions in many plant developmental processes, including seed and bud dormancy, the control of organ size and stomatal closure. It is especially important for plants in the response to environmental stresses, including drought, soil salinity, cold tolerance, freezing tolerance, heat stress and heavy metal ion tolerance

Plant growth is a dependent variable that is measured. Type of fertiliser is independent (variable).

Because they typically examine the impact of fertiliser, water, and sunlight, this scenario is under control. The latter two ideas offer an explanation for the second portion of the query.

2. It is not a direct thesis and cannot be regarded as a theory because it is frequently backed by hypotheses.

3. By looking at the graph and noting that it depicts the plant expanding, you can determine that the y-axis is measuring the plant's growth

To  know more about the plant growth visit here :

brainly.com/question/14602943

#SPJ4

Answer:

Explanation:

A dependent variable that is measured is plant growth and the independent variable is the fertilizer type.

This situation is under control because they normally look at how fertilizer, water, and sunlight affect things.

The last two hypotheses provide a justification for the second part of the question.

Because it is frequently supported by hypotheses, it cannot be regarded as a theory and is not a straightforward statement.

You can see that the y-axis is monitoring the plant's growth by glancing at the graph and observing that it shows the plant growing.

What factors are present in an experiment on plant growth?

Examples include the amount of water each plant receives, the type of soil the plants are growing in, and the air temperature.

You couldn't be certain that the outcomes happened as a result of the amount of sunlight each plant received if any of these factors changed during the experiment.

To learn more about plant growth visit:

https://brainly.com/question/9323511

#SPJ4

Answer: 62.9%

Explanation:

Figure one is not available so I cannot answer the first part of the question.

The second part however, has the relevant information required.

The percentage of large animals eaten by lions from the total amount of biomass eaten by lions is:

= Weight of large animals / Total weight of animals eaten by lions * 100%

= 110,000 / 175,000 * 100%

= 62.9%

Answer: C two cells that have two identical copies of DNA

Explanation: Took the test!

Viruses are excluded from the ribosomal RNA-based tree of life primarily because they lack ribosomal RNA. The correct option is D.

The ribosomal RNA-based tree of life is a classification method used to categorize living organisms based on their evolutionary relationships. It utilizes ribosomal RNA sequences, which are essential components of the protein synthesis machinery in cells, to determine the relatedness among various organisms.

Since viruses do not possess ribosomes and rely on their host's cellular machinery for protein synthesis, they do not have ribosomal RNA. This absence makes it impossible for viruses to be accurately represented and compared within the ribosomal RNA-based tree of life.

Although some viruses contain multiple strands of RNA (Option A), this factor does not impact their exclusion from the ribosomal RNA-based tree of life. Similarly, the fact that they can infect other organisms (Option C) complicates their classification but is not the primary reason for their exclusion. Lastly, the claim that their genetic elements cannot be sequenced (Option B) is incorrect, as viral genomes can indeed be sequenced and analyzed.

In summary, the main reason why viruses are excluded from the ribosomal RNA-based tree of life is that they lack ribosomal RNA, which is a crucial component of this classification method. Thus, the correct option is D.

To know more about Viruses, refer to the link below:

https://brainly.com/question/28412180#

#SPJ11

Viruses are excluded from the ribosomal RNA-based tree of life because they lack ribosomal RNA, unlike cellular organisms. They don't possess ribosomes which make this RNA:

The reason viruses are excluded from the ribosomal RNA-based tree of life is due to the fact that they lack ribosomal RNA. Ribosomal RNA (rRNA) is one of the three main types of RNA that any cellular organism possesses. It plays a central role in the protein synthesis of a cell, and therefore, the cellular organism. Viruses, however, are acellular entities that do not have ribosomes and hence, lack ribosomal RNA. Because of this, they can't fit into the ribosomal RNA-based tree of life. It's important to clarify that it's not related to the fact that viruses can have multiple strains of RNA, can infect other organisms, or their genetic elements cannot be sequenced.

https://brainly.com/question/33278747

#SPJ12

The neurotransmitters that are significant to the development of attachment include Oxytocin and Dopamine.Oxytocin and Dopamine are two of the most important neurotransmitters involved in the formation of attachment.

Oxytocin is sometimes referred to as the "bonding hormone" because it helps to establish emotional ties between individuals. It is released during a number of social behaviors such as hugging, kissing, and sexual intercourse, and it promotes trust and bonding between individuals.

Dopamine is another neurotransmitter that plays a role in attachment. It is associated with reward, motivation, and pleasure. Dopamine is released in response to pleasurable experiences and reinforces the behaviors that led to those experiences. This can help to strengthen social bonds between individuals.

To know more about neurotransmitters visit:

https://brainly.com/question/28101943

#SPJ11