Mitochondria are thought to have evolved from ancient bacteria. which characteristics of a free-living bacteria have mitochondria lost over time?

Answer:eh the black death it was infecting peeps around the 1500's.it was originally spread by rats and fleas but after people got infected the black death or bubonic plague got transmitted by people.

Explanation:eh by history

Answer:

A.lipids

Explanation:

The example of lipid includes the Oleic acid, phospholipids, and brassinosteroid hormone. It is to be found in the various organism in different kind of forms and also it performs various kind of functions. It means the un-polar, unsoluble organic compounds that involved natural oils, etc

The oleic acid defines the fatty acid that represent the insulator in the body. The Phospholipids defines the cell membrane fatty acids. And, Brassinosteroieds  represent the plant molecule that signaled  

 Therefore, the option a is correct

Answer:

Lipids

Explanation:

A number of genetic networks are linked to the growth and withering of plants, flowers, and fruits, and the phytohormone ethylene is important.

Many plants have evolved flowers as a means of producing seeds for the germination of new plants. Some flowering plants attract insects with their vibrant petals and sugary liquid known as nectar. Visiting insects aid in spreading honey among flowers so that seeds can develop.

Sexual reproduction results in variable offspring, which gives populations diversity and variance. It is crucial for plants because it gives variation to the offspring, which aids in improved survival, enables it to become distinctive within the species, and helps it get rid of undesirable genes.

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The triangular area inside the bladder is formed by imaginary lines connecting the two urethral openings and the urethral opening. This area is known as the trigone and plays an important role in urinary health. It serves as a gateway for urine to exit the bladder and enter the urethra.

If the trigone is irritated or inflamed, it can cause discomfort or pain during urination. It's also a common location for urinary tract infections. Monitoring the health of the trigone and urethral openings is important for overall urinary system function. Regular check-ups with a healthcare provider can help catch any issues early on.
The trigone inside the bladder is formed by imaginary lines connecting the two ureteral openings and the urethral opening. The trigone is a triangular-shaped area on the inner surface of the bladder. The ureteral openings are where the ureters enter the bladder, bringing urine from the kidneys. The urethral opening is where urine exits the bladder through the urethra during urination. The imaginary lines create the borders of the trigone, which is an important anatomical landmark in the urinary system.

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Answer:

True ...........................

Answer:

Ozone layer... pollution

Explanation:

The ozone layer is a layer in the atmosphere which provides a barrier between harmful UV rays and the Earth. However, pollution is quickly depleting the layer which in turn creates a higher risk of skin cancers and other conditions caused by harmful UV rays.

Answer:

3 Common structure found in both plant and animal cell:

3 different structures of plant and Animal cell:

Answer:

I think the answer is B)

Due to their relatively high energy demand, muscle cells require a particularly high number of mitochondria compared to other cell types.

Answer:

Gas exchange occurs rapidly and continuously in our lungs. Alveoli are tiny sacs at the end of bronchioles, the reason they are so tiny yet abundant is to increase their surface area to volume ratio. ... A larger surface area to volume ratio means there is more surface area to one unit of volume

Explanation:

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1. True 2. True 3. Scientific investigation is characterized by a good theoretical base and a sound methodological design. These characteristics are both related to the  Option a. Rigor

True - A critical review of the literature is necessary in nearly all research projects. It helps researchers understand the existing knowledge and gaps in the field, identify relevant theories and methodologies, and build upon previous studies.

True - Objectivity and parsimony are both related to the rigor of an investigation. Objectivity refers to the impartiality and lack of bias in conducting and interpreting the research, while parsimony refers to the principle of simplicity in explaining phenomena or choosing the most straightforward explanation. Both objectivity and parsimony contribute to the rigor of a scientific investigation.

a. Rigor - Scientific investigation is characterized by a good theoretical base and a sound methodological design. These characteristics are both related to the rigor of the investigation. Rigor refers to the thoroughness, precision, and reliability of the research process, including the theoretical underpinnings and the robustness of the methods employed.

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The correct question is:

1. A critical review of the literature is necessary in nearly all research projects.

True

False

2. Objectivity and parsimony are both related to the rigor of an investigation?

True

False

3. Scientific investigation is characterized by a good theoretical base and a sound methodological design. These characteristics are both related to the of the investigation What must be filled on the line?

a. Rigor

b. Precision and confidence.

c. Objectivity

d. Parsimony..

Answer:

Is the sporophyte more prominent in mosses or liverworts? Are mosses gametophyte or sporophyte dominant? What is the adaptive significance of the seta of the sporophyte growing well above the mat of the gametophyte ? Better dispersal of spores

Explanation:

For chromosome mobility to be facilitated, the chromosomes must compress during mitosis.

Chromosomes must compact in order for DNA to be able to replicate inside the nucleus.

Colchicine is a substance that is used to freeze the cells during the mitotic process in order to block or inhibit the movement of the chromosomes. Additionally, the faithful replication or transmission of the genome to those daughter cells depends on this mechanism. Cells divide during the interphase, however cell condensation is discovered to be taking place during the prophase. Chromosomes are permitted to travel prior to the mitotic process, and during this time, entanglements and breaks were also seen.

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Answer:

aerobics respiration or production of ATP

The lymphatic organ where precursors to lymphocytes travel from the bone marrow is called the thymus.

The thymus is a primary lymphatic organ located in the upper chest region, behind the sternum.

It plays a crucial role in the development and maturation of T lymphocytes, also known as T cells. T cells are a type of lymphocyte that plays a central role in cell-mediated immunity, which involves the immune response against infected or abnormal cells.

During early stages of development, precursor cells for lymphocytes, called lymphoblasts, are released from the bone marrow and migrate to the thymus.

In the thymus, these lymphoblasts undergo a process of differentiation and maturation, acquiring specific receptors and becoming functional T cells.

The thymus provides an environment for the selection and development of T cells, allowing them to recognize and respond to specific antigens.

Therefore, the thymus serves as the lymphatic organ where precursors to lymphocytes, specifically T cells, travel from the bone marrow to undergo maturation and acquire their specialized functions in the immune system.

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Answer:

A euglena. 

Explanation:

Answer:

Euglena carry out both plant and animal feature....

Answer:

the answer is the shield volcona

Answer:

B. food security

Explanation:

Answer:

B-Food Security

Explanation:

Answer:

disagree, an atom has two main parts. the nucleus & electron cloud. Atoms have three subatomic particles: protons, neutrons, and electrons.

Most atoms have three different subatomic particles inside them.

Explanation:

Answer:

Recessive: relating to or denoting heritable characteristics controlled by genes which are expressed in offspring only when inherited from both parents.

Dominant: Refers to a trait that appears more frequently than another trait, resulting from interactions between gene alleles.

Explanation:

Genotype and phenotype differences

Genotype Phenotype

The hereditary information of the organism in the form of gene in the DNA and remains the same throughout the life. The characters of an organism which are visible are known as phenotypes.

Same genotype produces same phenotype. Same phenotype may or may not belong to same genotype.

Present inside the body as genetic material. Expression of genes as the external appearence.

The genotype is inherited from the parent to the offspring. The phenotype is not inherited from the parent.

It can be determined by scientific methods such as the polymerase chain reaction. It can be determined by observing the organism.

It is affected by genes. It is affected by genotype and environmental conditions.

For eg., Blood group, eye colour, height, genetic diseases. For eg., Weight, physique, beak of birds

Answer:

Sports drinks are advertised to replenish glucose, fluids, and electrolytes (sodium, potassium, magnesium, calcium) lost during strenuous exercise as well as to enhance endurance.

Explanation:

The fruit fly Drosophila melanogaster has four pairs of chromosomes. There are 16 different, random chromosome alignments that are possible during metaphase I of meiosis.

The fruit fly Drosophila melanogaster has four pairs of chromosomes (eight chromosomes in total).During meiosis, homologous chromosomes line up together and then separate. There are two homologous chromosomes in each of the four pairs of chromosomes. It means that the chromosomes can line up in two different ways: paternal chromosome over maternal chromosome or maternal chromosome over paternal chromosome. Thus, the total number of ways in which the chromosomes can align themselves randomly would be 2^4, which equals 16. Therefore, there are 16 different, random chromosome alignments that are possible during metaphase I of meiosis.

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c. Glucose is the answer

Well I am not sure about this answer much

Diverticulosis is characterized by sac-like protrusions of the colonic wall, which is hypothesized to develop secondary to increased intraluminal pressure and weakening of the colonic wall.

These protrusions, called diverticula, form when the inner lining of the colon pushes through weakened areas in the outer muscular layer. The increased pressure within the colon is primarily caused by factors such as low dietary fiber intake, constipation, and straining during bowel movements. A diet low in fiber results in harder stools that require more effort to pass, leading to an increase in pressure within the colon. Constipation further exacerbates this issue, as the stool stays in the colon for longer periods, causing increased pressure on the colonic wall.

Straining during bowel movements can also contribute to the development of diverticulosis, as the force applied during straining adds pressure to the weakened areas of the colonic wall. Age, genetics, and lifestyle factors, such as obesity and smoking, can also influence the development of diverticulosis. While the exact cause of diverticulosis is not fully understood, maintaining a high-fiber diet, staying hydrated, and engaging in regular physical activity are recommended to lower the risk of developing the condition. So therefore diverticulosis is characterized by sac-like protrusions of the colonic wall, which is hypothesized to develop secondary to increased intraluminal pressure and weakening of the colonic wall.

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Answer:

The process described above is known as DNA replication.

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The South African government does everything in its power to combat crime.

It has developed a national crime prevention strategy that examines various areas of crime,

Taking the government as an example

1- is seeking a compilation of crime data. The government is looking into the issue because crime data is highly unreliable.

2-is seeking media organizations to assist in spreading awareness of certain offences. They want to educate the public about fighting and violent crime.

3. Classifying crimes and assigning punishments to each category. This is for criminals who need to be aware of the penalties they will face.

4-Increasing the executive authority of weapons, identifying smuggling routes, collaborating with neighboring states, etc. to bring the existing crime rate under some control.

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The enzyme that adds nucleotides during DNA replication may skip or add a nucleotide because of d) Intercalating agents

The enzyme that adds nucleotides during DNA replication may skip or add a nucleotide because of thymine dimers, nucleoside analogs, and intercalating agents. Thymine dimers can cause distortion in the DNA structure, making it difficult for the enzyme to correctly add nucleotides. Nucleoside analogs can mimic nucleotides and be incorporated into the growing DNA chain, causing errors in replication. Intercalating agents can insert themselves between the DNA strands, causing the strands to separate and potentially leading to errors in nucleotide addition. Ionizing radiation and nonionizing radiation can both cause damage to DNA, but do not specifically affect the enzyme responsible for adding . These agents can insert themselves between DNA base pairs, causing the DNA replication machinery to skip or add nucleotides, leading to errors in the replicated DNA sequence.

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Tricia Rose analyzes early hip-hop according to three concepts of flow, layering, and rupture. These concepts are described below:FlowFlow is a musical concept that refers to the rhythmic precision of an artist's delivery. The beat and rhythm of a track are determined by the delivery of an artist's lyrics, which are often described as flowing.

LayeringLayering refers to the way in which an artist weaves multiple, overlapping voices and sounds together in their music. The layering of different sounds creates a rich and complex musical texture.RuptureRupture is a concept that refers to the way in which hip-hop artists use their music to disrupt and challenge social norms and structures. This disruption can be achieved through lyrics that challenge traditional values and beliefs, or through the use of non-traditional instruments or sounds.Answer:Tricia Rose analyzes early hip-hop according to three concepts of flow, layering, and rupture. Flow is a musical concept that refers to the rhythmic precision of an artist's delivery. The beat and rhythm of a track are determined by the delivery of an artist's lyrics, which are often described as flowing.

Layering refers to the way in which an artist weaves multiple, overlapping voices and sounds together in their music. The layering of different sounds creates a rich and complex musical texture.Rupture is a concept that refers to the way in which hip-hop artists use their music to disrupt and challenge social norms and structures. This disruption can be achieved through lyrics that challenge traditional values and beliefs, or through the use of non-traditional instruments or sounds.

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The term that matches the definition of separation of charge within a bond is polarization.

Polarization occurs when there is an uneven distribution of electron density within a chemical bond, leading to a partial positive charge on one atom and a partial negative charge on the other. This phenomenon commonly arises in covalent bonds between atoms with different electronegativities.

The more electronegative atom attracts the shared electrons closer to itself, resulting in a partial negative charge, while the less electronegative atom bears a partial positive charge. This charge separation creates a dipole moment, contributing to the overall polarity of the molecule or bond. Polarization plays a crucial role in various chemical and physical processes, such as solubility, intermolecular interactions, and the behavior of electromagnetic radiation in matter.

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