What type of bonds does dna ligase create between adjacent nucleotides? hydrogen phosphodiester ionic

Unicellular organisms are single celled organisms while multicellular organisms are many celled organisms.

Small cell organisms have more particles then a big cell with less particles simply because materials are easily transported through them due to their surface area to volume ratio.

In order words, a small cell has a surface area to volume ratio which is capable of carrying more particles than a bigger cell.

Unicellular organisms are those living organisms consisting of only one cell.

Multicellular organisms are organisms which consist of more than one cell.

Bacteria is one of few examples unicellular organisms.

Some few examples of multicellular organisms are: lizard, fishes, crocodile and so on and so forth.

So therefore, unicellular organisms are single celled organisms while multicellular organisms are many celled organisms. Also, a small cell has a surface area to volume ratio which is capable of carrying more particles than a bigger cell.

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Answer: Give me the multiple choices, please. how can I know which one to choose?

Explanation:

Answer:

the cells, the structure, the function

Explanation: The fissil may have dead cells or even no cells at all and the living organism will have living cells and the functions within it

The transumbilical plane crosses the l3/l4 disc. The transumbilical plane, also known as the umbilical plane, is a horizontal line that runs through the abdomen at the navel level (or umbilicus).

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The initial carbon-14 would be left in an organic sample 74.1% .

Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegration per second of a radioactive material to decrease by one-half.

Now,

If the half-life of 4Cis 5700years, then that means after 5700years have happened, there will be half of the original amount, i.e. 50%of the original amount of 14Cleft.

So, after 2476years, the sample of 14Chas evolved:

2476/5700≈43.4%of a half-life.

A rule to remember is that if nis the number of half-lives elapsed, there will be 100/2n%of the original amount of substance remaining.

So here, n=43.4%=0.434. Therefore, there will be100/2^0.434

≈100/1.35

≈74.1% of the original amount remaining.

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A serious environmental hazard, acid mine drainage is the result of the chemical weathering of pyrite that yields sulfuric acid and iron oxide that will degrade aquatic habitats.

Mine drainage is created when pyrite, an iron sulfide, starts reacting with air and water to produce sulfuric acid and iron oxide.

Both of these chemicals are released into the water and pollute the aquatic bodies.

The increasing amount of sulfuric acid and iron oxide is affecting aquatic and marine life badly.

In places where the concentration of sulfuric acid is high, burns the skins of marine animals.

Moreover, mine drainage also contaminates the drinking water slowing down the growth and reproduction of the aquatic plants and animals.

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The pearl buying and selling market a “setup” is all four businesses are owned by the same man, giving the impression of competition even though there is none.

John Steinbeck, an American author, wrote a novella titled The Pearl. The tale, which was first released in 1947, centers on a pearl diver named Kino and examines man's motivations as well as greed, disobedience of social conventions, and wickedness. During a visit to the formerly pearl-rich region in 1940, Steinbeck heard a Mexican folk tale from La Paz, Baja California Sur, Mexico, which served as his inspiration.

La Perla, a 1947 Mexican movie, and Ondu Muttina Kathe, a legendary Kannada film, were both adaptations of the book (1987). One of Steinbeck's best-known works, the narrative has been extensively used in middle and high school courses.  Some people believe that The Pearl is a parable.

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Two pollutants are responsible for the production of ozone in the troposphere VOCs and NO2.

The combination of UV radiation from the sun with hydrocarbons and nitrogen oxides released by smokestacks and automobile tailpipes results in the formation of tropospheric ozone. High ozone levels in cities typically occur during the balmy summer months.

The main photochemical interactions between two major groups of air pollutants, volatile organic compounds (VOC) and nitrogen oxides, produce tropospheric or ground-level ozone, which is what humans breathe (NOx).

Pollution released by vehicles, power plants, commercial boilers, refineries, and chemical facilities is what causes ground-level ozone. Even paints, household cleaners, solvents, and powered lawn equipment may contribute to ozone pollution.

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When the angiosperms started their rapid expansion in diversification and range, the dominant group of terrestrial plants—the gymnosperms—was still in existence.

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The  mass extinction that led to the loss of 96% of marine life and 70% of terrestrial life was most likely due to a supernova an Asteroid impact or Volcanic eruption.



When lava and gas are released from a volcano, often explosively, this is known as an eruption. A "glowing avalanche," which occurs when recently erupted lava slides down the flanks of a volcano, is the most hazardous type of eruption. They are swiftly moving and can withstand heat up to 1,200 degrees Fahrenheit.

Deep within earth it is so hot that some rocks slowly melt and become thick a flowing substance called magma.

Volcanic eruption can affect floods ,mudslides ,power outages etc.

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According to the research, the correct option is Cloning technology. Cloning is a technology that helps new scientific researchers to restore populations of endangered species.

It is the technology that aims to reproduce the organism by duplicating the genome, that is, duplicating a certain gene, tissue or piece of DNA.

In this sense, it allows to obtain animals of high productive value and with better zootechnical conditions, focusing on the conservation of the DNA of the species, that is, first the DNA is extracted from an animal cell and introduced into an ovule emptied of genetic material, through these techniques, it is sought to prevent some animal species in danger of extinction from disappearing from the territory.

Therefore, we can conclude that according to the research, the correct option is Cloning technology. Cloning is a technology that helps new scientific researchers to restore populations of endangered species.

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Option D is correct:

Found in 1874, Wernicke’s area was found during an autopsy, which revealed a lesion on the left temporal lobe of a patient who had incomprehensible speech and zero ability to comprehend written or spoken language.

German physician, anatomist, psychiatrist, and neuropathologist Carl Wernicke. He is renowned for his groundbreaking studies on receptive aphasia and the pathogenic effects of particular types of encephalopathy, both of which are generally referred to as Wernicke encephalopathy and Wernicke's aphasia, respectively.

The Wernicke area was first discovered in 1874 by Carl Wernicke. It is one of the two areas of the cerebral cortex that regulate speech, according to research. Wernicke area is located in the superior temporal gyrus' posterior part, also known as Brodmann area 22 in the dominant hemisphere.

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Question correction:

Found in 1874, __________ area was found during an autopsy, which revealed a lesion on the left __________ lobe of a patient who had incomprehensible speech and zero ability to comprehend written or spoken language.

A. Wernicke’s . . . frontal

B. Broca’s . . . temporal

C. Broca’s . . . frontal

D. Wernicke’s . . . temporal

Answer:

Antibiotics produced by bacteria, mold, or yeast can be classified as irreversible inhibitors.

Explanation:

An irreversible inhibitor inactivates an enzyme by bonding covalently to a particular group at the active site. Hope this helped :)

Ardipithecus was the first species in which bipedalism first arrived  and they lived in open savanna environment.

What is the evolution of bipedalism?

Bipedalism is the ability to stand and walk completely on two feet. The bipedal gait evolved 4 million years ago and is characteristic of modern humans. Efficient locomotion and empty and free hands are the main advantages of bipedalism.

Ardipithecus, the earliest known genus of the zoological family Hominidae (the group that includes humans and excludes the great apes) and the probable ancestor of Australopithecus, a closely related group often thought to be the ancestors of modern humans. Ardipithecus lived 5.8 to 4.4 million years ago, from the late Miocene. These were the first ones to develop bipedalism while continuing living in the open savannas.

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Increasein levels of estrogen and progesterone lead to weight gain.

Twice throughout the menstrual cycle, oestrogen levels increases and decreases. The mid follicular phase sees an increase in oestrogen levels, which fall sharply after ovulation. The mid luteal phase of the menstrual sees a secondary increase in oestrogen levels ,which is followed by a decline at the end of the cycle.  

Due to weight gain oestrogen level increase. High levels of progesterone are linked to weight gain . Low levels of estrogen to poor health . Low levels of progesterone are linked to poor health.

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The given statement "The helper t cell is bound to the antigens on an invading bacterial cell." is false.

Immune cells include helper T-cells. They are one of the primary cell types that your thymus produces. Helper T-cells are able to detect infections when they occur in the body. To combat the infection, they stimulate additional immune cells. These T-cells play a crucial role in your body's adaptive immune response.

Helper T cells attach to antigens that are expressed on dendritic cells or macrophages by MHC class II. They don't engage in phagocytosis themselves but are positively selected in the thymus and release cytokines into the immune system.

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to increase the magnification

Changing from low power to high power increases the magnification of a specimen

makes it easier to find an object on low power, and then switch to higher power after it is in focus

the field of view will be wider, increasing the number of cells you are able to see. This makes it easier to find what you're looking for.

You must have the object centered before you change objectives to increase the magnification

lowest power has the highest field of view. As a result, it is easier to locate the specimen on the slide than if you start with a higher power objective.

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The study of interactions between sharks and their biological and physical surroundings is called Ecology.

What is ecology?
The German naturalist Ernst Haeckel is credited with inventing the term ecology, which he used to describe the "relation of the animal both to its organic as well as its inorganic surroundings."

It is the study of how organisms and their surroundings interact. Expanding populations, food shortages, environmental pollution, including global warming, extinctions of plant and animal species, and all the accompanying sociological and political issues are some of the most urgent issues facing humanity today. These issues are largely ecological.

Relationships between organisms and their surroundings can take many different forms. Individuals, groups of individuals, the entirety of a species, the sum of several species, or the overall mass of species (biomass) within an ecosystem can all be considered organisms. Additionally, in addition to physical and chemical components, the term "environment" also refers to the biological environment, which also includes additional creatures.

The relationship between shark and their biological environment such as temperature, salinity, light, etc. makes them adjustable to the environment and hence the term is said to be ecology.

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Answer:nikhi

Explanation:

Hybridization exists the idea of combining two atomic orbitals to create a brand-new category of hybridized orbitals.

The hybridization of the carbon scraps numbered 1 and 2, respectively, in this structure is,

[tex]CH_{2} =C=CH_{2}[/tex]

The hybridization of the carbon scraps numbered 1 and 2, respectively, in this structure is,

[tex]CH_{2} =C=CH_{2}[/tex]

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In this stage of mitosis chromosomes are split at the centromere and pulled to opposite ends of the cells is known as anaphase.

Metaphase leads to anaphase, during which each chromosome's sister chromatids separate and move to opposite poles of the cell. Enzymatic breakdown of cohesin — which linked the sister chromatids together during prophase — causes this separation to occur. Upon separation, every chromatid becomes an independent chromosome. Meanwhile, changes in microtubule length provide the mechanism for chromosome movement. More specifically, in the first part of anaphase — sometimes called anaphase A — the kinetochore microtubules shorten and draw the chromosomes toward the spindle poles. Then, in the second part of anaphase — sometimes called anaphase B — the astral microtubules that are anchored to the cell membrane pull the poles further apart and the inter polar microtubules slide past each other, exerting additional pull on the chromosomes.

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More nutrients in the lake environmental impact can result from large algae blooms in the Great Lakes. This process is done by Eutrophication.

Eutrophication- When a water body acquires an excessive quantity of nutrients, the development of algae & macrophytes rises, a process known as eutrophication takes place. It lowers the concentration of dissolved oxygen in water bodies and lowers the quality of the water.

More algae bloom as a result of the eutrophication process (because the level of nutrients increases). It may alter the ratio of long-lived macroalgae to more invasive species while increasing the ratio of fast-growing (including toxic) algae species.

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Answer: more lake dead zones

Explanation:

The inheritance of color and fin shape are each due to segregation of two alleles at a single gene is the right response about the inheritance of color and tail fin shape in goldfish.

That is in line with Mendel's law. Gold after the first cross of black and gold (F1 generation). The only fish in this F1 generation are gold in color. Because there is only one type in the F1 generation, we may state that the dominant color is gold and that both of the parental colors are homozygous (gold).

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Question correction:

An experienced goldfish breeder receives two unusual male goldfish. One is black rather than gold, and the other has a single tail fin rather than a split tail fin. The breeder crosses the black male to a female that is gold. All the F1 are gold. She also crosses the single-finned male to a female with a split tail fin. All the F1 have a split tail fin. She then crosses the black male to F1 gold females and, separately, crosses the single-finned male to F1 split-finned females. The results of the crosses are shown below.

Black male ×F1 gold female:

Gold 32

Black 34

Single-finned male ×F1 split-finned female:

Split fin 41

Single fin 39

1. What do the results of these crosses suggest about the inheritance of color and tail fin shape in goldfish?

-The inheritance of color and fin shape are due to segregation of two alleles at the same gene.

-The inheritance of color and fin shape are each due to segregation of two alleles at a single gene.

-The inheritance of color is due to segregation of two alleles at different genes; the same is true for fin shape.

The model the researcher can use to simulate how the bacterial infection might spread through a human body is a physical model (option B).

A model is a representation of a physical object, usually in miniature.

A model is a simplified representation used to describe the workings of a real world system or event.

There are different types of models used as follows;

A physical model is a simplified material representation of an object or phenomenon that needs to investigated.

According to this question, the model the researcher can use to simulate how the bacterial infection might spread through a human body is a physical model.

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The correct answer is Dendrite.

A useful analogy is to think of neurons as trees. Neurons consist of three main parts: dendrites, axons, and  cell bodies or cell bodies (see diagram below), which can be represented as  branches, roots, and trunks of a tree, respectively. Dendrites (branch) are where neurons receive input from other cells. The dendrites branch  like  branches toward the tip and  even have leaf-like structures  called spines.

Axons (tree roots) are the starting structures of neurons. When a neuron wants to talk to another neuron, it sends an electrical message, called an action potential, across the  axon. The cell body (tree trunk) contains the nucleus, houses the neuronal DNA, and makes proteins for transport down the axons and dendrites. Both the brain and spinal cord have different types of neurons. They are generally classified based on where they originate, what they project to, and what neurotransmitters they use.

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Alcohol and carboxylic acids are two functional groups that combine to form methyl benzoate.

For the making of benzoate ester, alcohol and carboxylic acid are two functional groups of methyl benzoate.

Methyl benzoate is made by condensing a compound containing a carboxylic acid functional group namely benzoic acid and another compound containing an alcohol functional group namely methanol. It also plays a role in attracting insects and acts as a metabolite.

Methyl benzoate is a crystalline solid, it has a density lower than that of water. Being in its contact can irritate mucous membranes, skin and eyes. It's used in pharmaceutical industries for making other chemicals. It is known as methyl ester and benzoate ester.

Therefore, alcohol and carboxylic acids are two functional groups that combine to form methyl benzoate.

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Most fats and fat-soluble nutrients are absorbed and carried through the Lymphatic system.

The components of the lymphatic system are:

Primary lymphoid organs: These organs consist of the thymus and bone marrow.

Secondary lymphoid organs: The lymph nodes, spleen, tonsils, and specific tissue in the body's numerous mucous membrane layers are all examples of (for instance in the bowel).

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The light bands are called I bands which contains actin .

The striations are the result of highly ordered actin and myosin with sarcomeres ,the basic contractile units of muscle fibres . Sliding of the myosin thick filament along the actin thin filaments within the sarcomeres leads to contraction of striated muscle fibres.

Isotropic bands are light bands of skeletal muscles whereas anisotropic bands are dark bands which contains myosin.

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Here are the explanation on how each of these passes from the extracellular fluid into cells:

1) Diffusion allows oxygen to move from the extracellular fluid into the cell. The concentration is quite high outside the cell and very low inside. As a result, substances reach cells through different concentration points.

2) The plasma membrane's ion channels are used to transfer calcium.

3) After entering our blood from the digestive system, ethanol enters cells with the assistance of proteins.

4) Facilitated diffusion through the plasma membrane allows glucose to enter the cell. With the aid of unique proteins found in the cell membrane, a material enters the cell via this form of diffusion.

5) Growth factor is affixed to receptors found on the surface of the cells they are trying to penetrate.

Extracellular fluid differs from intracellular fluid (fluid inside the cells) in that it typically has a higher sodium concentration and a lower potassium concentration, whereas intracellular fluid has a higher potassium concentration and a lower sodium concentration. Cells frequently produce the liquid to maintain a stable environment for cellular functions.

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