Identify a difference between the covalent bonds within a water molecule and the hydrogen bonds that form between different water molecules

Answer:

Around 30 trillion cells!

Explanation:

Answer:

2

just did test

Explanation:

Homologous Structures,Vestigial Structures Homologous Structures Homologous Structures Homologous Structures

Analogous Structures

Answer - Wings of penguins that are similar to wings of other birds but penguins do not fly - Homologous Structures
Human appendix that is still present even though we no longer need it - Vestigial Structures
Whale fins and bat wings that contain the same bone structure based on diet - Homologous Structures
Gill pouches present in all vertebrates at some point during development - Homologous Structures
Evidence of evolution from a common ancestor - Homologous Structures
Both birds and insects have wings to fly - Analogous Structures

Homologous structures - are those from organisms that share a common ancestor. The similarity in the anatomical features can be used to support conjectures regarding their evolutionary histories.

Structures that have no apparent function and appear to be residual parts from a past ancestor are called vestigial structures. Examples of vestigial structures include the human appendix, the pelvic bone of a snake, and the wings of flightless birds

Analogous structures are features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature (compare to homologous structures) and which evolved in response to a similar environmental challenge.

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Answer:

Cytoplasm

Explanation:

In eukaryotes, there is a definite nucleus where the ribosome and mRNA production takes place. The ribosomes and mRNA come out of the nucleus into the cytoplasm where the ribosomes work upon and catalyze the formation of proteins. Meaning that in eukaryotic cell, ribosomes make proteins in the cytoplasm.

Explanation:

Ribosome existed in the rough endoplasmic reticulum and existed freely in cytoplasm

Answer:

oxygen

Explanation:

The most abundant elements by mass in the body of a healthy human adult are Oxygen (61.4%)

toppr

We flame inoculating loops and needles to sterilize them before use. This is important because bacteria and other microorganisms can contaminate the sample and give inaccurate results if not properly sterilized. The flame also helps to remove any residual bacteria or debris from the previous use of the instrument.

Hearing a sizzling sound when placing the loop or needle on the bacteria to be harvested is a good sign that the instrument is hot enough and ready for use. The sound is caused by the heat of the instrument instantly vaporizing any liquid that may be on the surface of the bacteria. It is important to let the instrument cool down for a few seconds before touching the bacteria to prevent any damage or killing of the bacteria.

Overall, flaming inoculating loops and needles is a simple and effective way to ensure accurate and reliable results in microbiological testing.

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Part A: The student can draw the conclusion that there is a lot of ambiguity and uncertainty around the rules relating to driverless automobiles based on the material presented in "The Pros and Cons of Driverless Cars".

Therefore, B is the right response. The laws are surrounded by a great deal of uncertainty and misunderstanding.

Autonomous or self-driving automobiles, usually referred to as driverless cars, are autos that can operate without a driver thanks to sensors, cameras, and sophisticated software. These automobiles are built to operate autonomously, navigating roadways, according to traffic regulations, seeing impediments, and making judgments.

Part B:

The phrase from the passage that exemplifies the response to Part A the best is: C. Some states are now updating their own legislation, but because not every state is doing this, what happens if you cross a state border in a driverless car?

This phrase emphasizes the fact that states are presently reviewing their own rules pertaining to autonomous vehicles, demonstrating the ambiguity and uncertainty surrounding the law in this field.

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In your experiments with a star changer, you must have observed the relative brightness which is: directly related to the diameter of the lens.

The diameter of the lens, in turn, is directly proportional to the intensity of light that the lens captures. The relative brightness is also related to the surface area of the lens. The surface area, as we know, increases with the square of the diameter of the lens.

Therefore, if the diameter of the lens is doubled, the surface area will increase fourfold, making the image brighter. As a result, we can say that the brightness of the image observed in a star changer is directly proportional to the diameter of the lens, which is dependent on the surface area of the lens.

A bigger lens will be able to capture more light, resulting in a brighter image. Another way to increase the brightness of the image is to use a lens with a lower focal length. As the focal length of the lens is decreased, the image is magnified more, making it appear brighter.

However, this method comes with a downside. As the focal length decreases, the image's clarity decreases as well. Therefore, a balance between the diameter of the lens and the focal length must be maintained to get a bright and clear image of the star.

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The ecological footprint has a significant and long-term effect on the environment and sustainability. It measures the impact of human activities on natural resources and ecosystems.

A large ecological footprint signifies high resource consumption, which can lead to resource depletion, habitat destruction, loss of biodiversity, and environmental degradation.

It also contributes to climate change through greenhouse gas emissions and exacerbates social and economic inequalities. To achieve long-term sustainability, it is important to reduce our ecological footprint by adopting sustainable practices, promoting renewable energy, conserving resources, and practicing responsible consumption. By doing so, we can protect the environment, mitigate climate change, and ensure a better future for generations to come.

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A jazz-rock fusion ensemble most likely would not include string bass. (C)

Jazz-rock fusion, as the name suggests, combines elements of both jazz and rock music. In this style, you will typically find an electric bass which provides a strong foundation for the music with amplified sound. It also has a Fender Rhodes electric piano that offers a unique electric piano sound often found in jazz and rock and drums which are an essential part of the rhythm section in both jazz and rock. However, string bass (C)  (also known as the double bass or upright bass) is less common in jazz-rock fusion ensembles, as the electric bass is typically preferred for its amplified sound and ability to blend better with other electric instruments.

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False. In a binary search tree (BST), the smallest element is located at the leftmost leaf, but the largest element is located at the rightmost leaf.

In a binary search tree, each node has two children, a left child and a right child. The left child is always smaller than its parent, and the right child is always larger. This property holds true throughout the entire tree structure.

As a result, the smallest element in a BST is found at the leftmost leaf of the tree. This is because as we traverse down the left side of the tree, we are always moving to smaller values.

However, the largest element in a BST is located at the rightmost leaf of the tree. This is because as we traverse down the right side of the tree, we are always moving to larger values.

Therefore, while the leftmost leaf of a BST does contain the smallest element, the largest element is located at the rightmost leaf of the tree.

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Answer:

C. Protective Barrier against infection and disease

Explanation:

The skin does not send chemical messages, nor electrical, and the skeletal and muscular system is what allows movement and structure, which leaves C as the answer because it is what protects outside diseases from getting into your blood or arteries

Hope this helps!

A grower who wishes to enhance plant growth by adjusting the carbon dioxide levels in the greenhouse will use a NDIR as analyzer to evaluate carbon dioxide levels.

Carbon dioxide can be measured using infrared detectors, also known as NDIR analyzers, because it is an excellent absorber of infrared energy. Depending on the application, carbon dioxide can be measured in percent (%) or parts per million (ppm).

A sensor is used to measure carbon dioxide. The NDIR non-dispersive infrared sensor is one of the most common.

Its popularity stems from its long life-span, high speed, and low cross-sensitivity to other gases. An NDIR CO2 sensor detects infrared light in an air sample.

Thus, NDIR can be used.

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The best cross to find out if the purple-flowered peas are homozygous is a monohybrid cross. In a monohybrid cross, the scientist would cross the purple-flowered pea plant with another pea plant that has a different flower color (such as white), and observe the phenotype (observable characteristics) of the offspring.

If the purple-flowered pea plant is homozygous for the purple flower color (PP), all of the offspring will also have purple flowers. However, if the purple-flowered pea plant is heterozygous (Pp) for the purple flower color, some of the offspring will have white flowers. This is because the offspring will inherit one allele (version) of the gene for flower color from each parent. If the purple-flowered parent is homozygous, it will pass on a purple allele in each case; if it is heterozygous, it will pass on either a purple or white allele.

By observing the flower color of the offspring, the scientist can determine whether the parent plant is homozygous or heterozygous for the purple flower color allele. If all the offspring have purple flowers, the parent plant is homozygous. If some of the offspring have white flowers, the parent plant is heterozygous.

Answer:

As we know, purple flowered peas plants are a dominate traits.

The purple flowered pea plants that the scientist has might be heterozygous(Pp) or homozygous (PP).

The best cross to find out what alleles those purple flowered peas are carrying, is to cross it with heterozygous purple flowered pea plant...

we have:

Heterozygous purple-flowered peas crossed with unknown alleles for purple-flowered peas.

Now, we have two options

Results will be :

3=purple-flowered peas

1= white- flowered peas

(75% purple and 25% white)

Results will be :

4 = purple-flowered peas

(100% purple)

Now,

If all the results were purple-flowered peas then the plants she has are homozygous

And if some of the results were white-flowered peas then the plants she has are heterozygous

Answer:

Explanation:

DIFFERENCES

SEXUAL REPRODUCTION                                                                          Sexual Reproduction is a type of reproduction in which one or two organisms or individuals are involved. Fusion of gametes occurs and the offspring’s have different characters. There are sexual organs for both male and female and the organs of both male and female come into contact at the time of reproduction.

ASEXUAL REPRODUCTION                                                                       Asexual Reproduction is a type of reproduction in which only one organism is involved. There will be no fusion of gametes and The offspring will exactly resemble the parent. There are various kinds of asexual reproduction and some of them are binary fission, budding, fragmentation, parthenogenesis, sports, etc.

Explanation:

asexual

without sexual feelings or associations.

Sexual

acctual feelings or associations.

so then u figure it out from there

Answer:

may be the ans is at the equator

Explanation:

because the temperature at equator is sutable to grow plant's there will be sunny and raining in equator

Answer:

B

Explanation:

JUST TOOK KN APEX:))

Answer:

B.

Explanation:

just b.

The owl will receive 10% or 4.5 units of energy upon eating the mouse.

10% energy Rule:

It states that the enregy is reduced by 90% when move higher from one trophic level to another in an ecosystem.

Here, Groshopper contains 450 units of energy.

Thus, rat gets 45 or 10% energy from the grosshopper on eating.

Therefore, the owl will receive 10% or 4.5 units of energy upon eating the mouse.

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The current synthesis of evolution states that part of the variation that natural selection operates on is produced by genetics and mutation. Here option C is the correct answer.

The Modern Synthesis of Evolution, also known as the Neo-Darwinian Synthesis, is a scientific theory that combines Charles Darwin's theory of evolution by natural selection with Gregor Mendel's laws of inheritance.

It explains how evolution occurs through the process of natural selection acting on genetic variation within populations. According to this synthesis, genetic variation is generated through mechanisms such as mutation and genetic recombination, and this variation is then acted upon by natural selection, leading to the evolution of species over time.

This theory is widely accepted as the current understanding of evolution and is the basis for much of modern evolutionary biology.

Complete question:

Which phrase best completes the sentence?

According to the modern synthesis of evolution, __________.

A - species do not descend from common ancestors

B - only populations of identical individuals can evolve

C - genetics and mutation generate some of the variety that natural selection acts on

D - the processes seen on earth today are the same ones that took place long ago

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Taq polymerase is a common enzyme used for PCR amplification. It is similar to E. coli DNA dependant DNA polymerase I. It is so because of the strong homology at the amino acid level. The 3′-OH nucleotide addition site, the dNTP/DNA binding sites, and the 5′-3′ exonuclease sites of both the enzymes.

The DNA polymerase I is mainly used for repair of the damaged DNA. It also helps to connect Okazaki fragments by deleting RNA primers.

E. coli DNA dependant DNA polymerase I has similar properties like Taq polymerase as they both have strong homology at the amino acid level.

The 3′-OH nucleotide addition site, the dNTP/DNA binding sites, and the 5′-3′ exonuclease sites of both the enzymes.

Thus, it can be concluded that E. coli DNA dependant DNA polymerase I is the enzyme similar to Taq polymerase.

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The mutations in the bithorax gene that affect the development of the reduced wing-like t3 appendage, known as the haltere, occur in regulatory regions or control elements of the gene rather than in the coding sequence itself.

These mutations alter the expression and regulation of the bithorax gene, leading to changes in its activity during development.

The bithorax gene is a homeotic gene that controls the formation of body segments and appendages in fruit flies. It contains regulatory regions called enhancers that determine where and when the gene is expressed.

Mutations in these enhancer regions can disrupt the normal pattern of bithorax expression, resulting in abnormal development of the haltere.

For example, some mutations may cause the enhancers to be non-functional, leading to a loss or reduction in bithorax expression in the developing haltere. This can result in a complete or partial transformation of the haltere into a wing-like structure.

Other mutations may alter the timing or spatial pattern of bithorax expression, leading to changes in the size, shape, or identity of the haltere.

These mutations can affect the interactions between the bithorax gene and other genes involved in appendage development, causing developmental abnormalities.

Overall, the mutations in the regulatory regions of the bithorax gene disrupt the normal control of gene expression, leading to diverse effects on the development of the haltere in fruit flies.

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False. Lysozyme is an enzyme found in various bodily fluids, including tears, saliva, and mucus. Its primary function is to break down bacterial cell walls, thereby preventing infection. However, lysozyme is not typically found in the blood, and it cannot be activated by antigen-antibody complexes.

Lysozyme is a protein that is synthesized and secreted by various cells throughout the body, including epithelial cells and macrophages. It is also present in certain types of white blood cells, such as neutrophils. When lysozyme encounters a bacterial cell wall, it breaks down the peptidoglycan molecules that make up the wall, causing the bacterium to burst and die.

While some enzymes in the blood can be activated by antigen-antibody complexes, lysozyme is not one of them. Instead, lysozyme is activated by other mechanisms, such as changes in pH or the presence of certain ions. In general, lysozyme is an important component of the body's innate immune system, helping to protect against bacterial infections and maintain overall health.

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The purpose of transcription is to create an mRNA copy of a gene, allowing the genetic material to leave the nucleus and go to the site where it can be assembled into a protein.

A student is investigating how reaction rate changes over a range of enzyme concentrations. The student uses excess reactants and as the rate of enzyme increases then the rate of reaction increases too, as there are more enzymes present to catalyse the reactions. So option D is correct answer.

An enzyme substrate reaction is a chemical process in which an enzyme (a type of protein molecule) interacts with a specific substrate molecule to produce a product. Enzymes are biological catalysts that speed up the rate of chemical reactions in living organisms. They are highly specific and typically catalyze only one type of reaction. In an enzyme substrate reaction, the substrate molecule binds to the enzyme at its active site, which is a specific region on the enzyme that is complementary in shape and charge to the substrate.

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The level of damage caused by a blast depends on several factors, including the distance from the blast, the duration of the overpressure, and the strength of the structures or materials involved.

However, it is possible to provide some general information about blast injuries based on the peak overpressure of 47,000 N/m2.

At this level of overpressure, individuals who are within close proximity to the blast (i.e., within the "lethal radius") are likely to experience significant injuries, including trauma to the lungs, ears, and other internal organs. The severity of these injuries can vary depending on the individual's distance from the blast and other factors.

In terms of fatalities, the risk of death from a blast injury is also influenced by several factors, including the intensity and duration of the overpressure, the location of the individual relative to the blast, and the individual's health status and other demographic factors. Without more detailed information about the specific circumstances of the blast and the population at risk, it is not possible to estimate the fraction of people who would die as a result of lung hemorrhage.

Overall, blast injuries are complex and multifactorial, and their severity and impact depend on many different variables. It is important to take appropriate precautions to prevent exposure to blasts and to seek medical attention immediately if blast-related injuries occur.

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Answer:

deoxyribose nucleic acid

Answer:

Thx, for the free points!!! : ) Why are you leaving brainly tho?

Explanation:

Answer:

DNA does contain all genetic information within an organism I believe?

Answer:

True

Explanation:

An organism's complete set of nuclear DNA is called its genome. Besides the DNA located in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria. Mitochondria generate the energy the cell needs to function properly.

Answer:

Hey mate.....

Explanation:

This is ur answer.....

Hope it helps!

Brainliest pls!

Follow me! :)

Answer:

C. Both of these are correct.

Explanation:

Whales are the artiodactyls a group of hoofed mammals that includes deer, pigs, giraffes, camels and hippos.

Answer:

a) Cats show incomplete dominance which means the kitten can be born with full length tails, short length tails and without tails.

b) The genotype of the parent will be heterozygous (Tt ) and the kittens will be:

Genotype | Fenotype

-TT | (long tail)

-Tt | (short tail)

-tt | (no tail).