A student added a solution to the plant cell shown in image 1 which resulted in the plant cell undergoing changes, as shown in image 2. What best directly explains the observed changes? A) The solution was isotonic to the cell and caused organelle lysis. B) The solution contained enzymes that degraded the DNA and proteins of the plant cell. C) The solution was hypotonic to the cell and caused an increase in turgor pressure as water entered the cell. D) The solution was hypertonic to the cell and caused water to leave the plant cells central vacuole and cytoplasm.

The phenotype ratio for a cross between a white-eyed male and a female heterozygous for red eye color is 1:1:1:1, consisting of equal parts red-eyed females, white-eyed females, red-eyed males, and white-eyed males.

The phenotype ratio for a cross between a white-eyed male and a female that is heterozygous for red eye color in fruit flies can be determined using Mendelian genetics. The white-eye mutation is often found on the X chromosome and is recessive. Assuming the female has one red (dominant) and one white (recessive) allele (XWXw), and the male has only the white allele (XwY), their offspring's phenotypes depend on the alleles they inherit.

Half of the male offspring will receive the Xw allele from their mother and a Y chromosome from their father, resulting in white eyes (XwY). The other half will receive the XW allele and a Y from their father, resulting in red eyes (XWY). Female offspring will receive one X chromosome from each parent. Half of the females will be red-eyed (XWXw), and half will be white-eyed (XwXw). This yields a phenotype ratio of 1 red-eyed female: 1 white-eyed female: 1 red-eyed male: 1 white-eyed male, or simply 1:1:1:1.

Considering an Aa x Aa cross for a different scenario, the phenotype ratio is typically 3:1 for the dominant versus recessive trait. A dihybrid cross like AABb x Aabb yields a 9:3:3:1 phenotype ratio when both traits are considered, but if we consider only one trait at a time, we observe a 3:1 monohybrid cross ratio. When you cross AAbb with aabb, all offspring will display the recessive phenotype, resulting in a 1:0 ratio. For pea plants, a cross between a YY and yy individual yields all yellow offspring (1:0), while a Yy x Yy cross gives a 3:1 yellow to green ratio. When crossing guinea pigs, an SS x ss yields all smooth coat offspring (1:0) and a Ss x ss cross results in a 1:1 ratio of smooth to rough coats.

A) Polaris is much farther from Earth than the Sun -is the reason why Polaris although about 46 times larger than the Sun, the Sun appears brighter than Polaris from Earth.

Explanation:

Astronomers define the brightness of a star based on its apparent magnitude and absolute magnitude. The apparent magnitude tells about how bright does a star looks from the Earth. The absolute magnitude of star is its brightness or magnitude at a standard distance of 10 parsecs or 32.6 light-years.  

Accordingly,  

The apparent magnitude of Sun is 26.74; while that of Polaris is 2.02

The absolute magnitude of Sun is 4.63; while that of Polaris is 3.6

The Sun is at a distance of 0.000015649 light years from the Earth; while the Polaris is 434 light years from the Earth. A star appears brighter from the Earth due to the closeness of the star to the Earth.

All these factors make the Sun appear brighter than the Polaris .

Answer:

D.

Explanation:

In terms of being ethical or unethical, it would be unethical to purposely dump 10 million liters of crude oil into the Gulf of Mexico because of the damage it would do to the organisms living there including plants, animals, and people.

Answer:

RNA moves the DNA code to the ribosomes for protein synthesis

Explanation:

Translation is the process by which mRNA is decoded and translated to produce a polypeptide sequence, otherwise known as a protein. This method of synthesizing proteins is directed by the mRNA and accomplished with the help of a ribosome, a large complex of ribosomal RNAs (rRNAs) and proteins. In translation, a cell decodes the mRNA genetic message and assembles the brand-new polypeptide chain. tRNA, translates the sequence of codons on the mRNA strand. The main function of tRNA is to transfer a free amino acid from the cytoplasm to a ribosome, where it is attached to the growing polypeptide chain. tRNAs continue to add amino acids to the growing end of the polypeptide chain until they reach a stop codon on the mRNA. The ribosome then releases the completed protein into the cell.

Answer:

RNA moves the DNA code to the ribosomes for protein synthesis

Explanation

The sodium hydroxide solution and vegetable oil underwent a chemical change.

The reaction between a base and a fat or fatty acid is called as saponification reaction. Here the base dissociates into the cation and hydroxyl ion. The hydrogen from the fatty acid of the oil reacts with the hydroxyl ion to form water which is basically the neutralization reaction. This cation now reacts with the rest of the fatty acid to form a bipolar molecule which is the soap. During the reaction, the solution becomes cloudy but with time, it again goes back to solution. The cloudyness appears because oil isn't soluble in water based solutions and the base is actually made solution in water.

Here the sodium hydroxide reacts with oil to form water and the soap molecule which is a chemical change.

Answer:

The sodium hydroxide solution and vegetable oil underwent a chemicalchange.

Explanation: did it on study islandddd <3

Answer:

The Global Positioning System (GPS) works in conjuction with electronic collars to enable scientists to track endangered animals.

Explanation:

Answer:

Which of these technologies allows scientists to follow the movements of animals after placing electronic collars on them?

hidden camera being placed on animals or strategic location of this camera has greatly helped in monitoring movement although the usage of drones has taken over the use of helicopter in monitoring of animal movement

Explanation:

Answer:

D. variation.

Explanation:

In order for natural selection to occur, Charles Darwin stated we must begin with a population that has genetic variation. The genetic variation allows some members of the population to have traits, like a certain color, that helps them to survive. If an organism survives, it reproduces, and then passes those traits on to the offspring.

For natural selection to occur as defined by Charles Darwin, there needs to be genetic variation within a population of organisms. When a certain trait provides a survival advantage, it becomes more common over generations through the process of natural selection.

In order for natural selection to occur, Charles Darwin indeed stated that we must begin with a population of organisms that possesses diverse genetic variation. This genetic variability within a population is vital for natural selection, as it represents different adaptations of the organisms to their environment. When a certain trait gives an organism an advantage in survival and reproduction in a particular environment, this trait would increase its frequency in the population over generations through the process of natural selection. For instance, if a species of birds exists where some have short beaks and others long, and if long beaks turn out to be more advantageous in obtaining food, then the long-beaked birds will have a higher survival rate and thus more offspring. Over generations, the prevalence of long beak will increase in the population thus illustrating natural selection.

https://brainly.com/question/32227158

#SPJ6

What grade is this,i did not get a chance to see

The bubbles released by the elodea plant during photosynthesis are oxygen. With increase in light intensity, the rate of photosynthesis increases. Other factors like CO2 concentration, water availability, and temperature could impact the rate of photosynthesis and experiments can be designed to test these.

1) The bubbles that the elodea released are made of oxygen. This is a byproduct of photosynthesis.

2) Based on the data collected, we can conclude that as light intensity increases, so does the rate of photosynthesis. This is represented by the increasing number of bubbles (oxygen) being produced with each increase in light intensity.

3) Another way to test the light intensity could be by changing the distance of the light from the plant. The procedure would involve keeping the light of same wattage and varying the distance from the plant for each trial, and counting the number of bubbles released.

4) Other potential factors that might affect the rate of photosynthesis include carbon dioxide concentration, water availability, and temperature.

5) Hypothesis: If the carbon dioxide concentration were increased, then the rate of photosynthesis would increase.

6) To test this hypothesis, an experiment could be designed where the Elodea plant is exposed to environments with different carbon dioxide concentrations while keeping all other factors constant. The number of bubbles released would then be counted over the time of exposure to each concentration, to compare the rate of photosynthesis.

https://brainly.com/question/33490104

#SPJ3

The process of recombination, or crossover, happens during meiosis. It results in the exchange of genetic material between homologous chromosomes, leading to unique combinations of maternal and paternal genes. This process contributes significantly to genetic diversity.

The process that results in recombination of genetic material is known as crossover, or recombination. It takes place during meiosis when two homologous chromosomes align and exchange parts of their genetic material.

This process results in the creation of recombinant chromosomes which contain a mix of maternal and paternal genes that did not exist before the crossover. Multiple crossovers can occur, each generating a unique combination of genes. This recombination adds to genetic diversity among gametes and is a vital component of evolution.

https://brainly.com/question/38328485

#SPJ3

Answer:

8.7 million animals #markasbrainliest

Answer: The infectious diseases that are caused by protozoa include Chagas diseases, Human African Tripanosomiasis, and Leishmaniasis, among others. Chagas disease is a tropical parasitic disease caused by the Protist, Trypanosoma cruzi which spreads through insects like “kissing bugs”

Explanation:

Answer: (+1) for each H and (-2) for each O, (+4) for Se

Explanation:

A transgenic organism is one which has had DNA from one organism incorporated into another, enabling a new trait or function. This does not remove any part of the original DNA, nor does it involve selective breeding. The correct option is A.

A transgenic organism is best described by option A. In this case, DNA from one organism is incorporated into another, creating a new genetically modified organism. The organism receiving the DNA now has a new trait or function that it didn't originally have, depending on the DNA that was introduced. This process is extensively used in modern biotechnology, for instance in introducing herbicide resistance in plants, or producing insulin in bacteria. It's essential to note that this process doesn't remove or delete any part of the original DNA, it adds to it. Furthermore, it's also distinct from option C, which describes selective breeding, not transgenic modification.

https://brainly.com/question/31873081

#SPJ3

A transgenic organism is best described by option A: DNA from one or more organisms is put into another. This involves the use of biotechnology to introduce foreign DNA into an organism. This process is widely used in research, agriculture, and medicine.

Answer:

Ancient single-celled organisms competed for food, energy and raw materials. Natural selection favored cells that could compete effectively.

Explanation:

The theory of natural selection explains how organisms with the best characteristics are able to survive in an environment and pass on their characteristics to their organisms. Through the phenomenon of natural selection, evolution occurs and species tend to evolve into new species. The same phenomenon goes for the cells. Ancient prokaryotes competed for food, energy an other materials. Those prokaryotic cells which were better adapted were favoured by natural selection.

Final answer:

The statement selected is Ancient single-celled organisms competed for food, energy, and raw materials. Natural selection favored cells that could compete effectively.

Explanation:

The specialized parts of cells, such as the endoplasmic reticulum, Golgi apparatus, and lysosomes, have evolved to their current form through a process known as endosymbiosis and natural selection.

This complex endomembrane system is essential for the various functions within the cell, including protein synthesis, modification, and transport of lipids and proteins. Infoldings in the plasma membrane of ancestral cells are believed to have given rise to different membrane-bound organelles.

Over time, these organelles have become more specialized as cells adapted to different needs and functions. Cells such as muscle cells and pancreatic cells have varying amounts of mitochondria and ribosomes, respectively, to meet their energy and enzyme production requirements.

Such specialization ensures efficient functioning and survival of the cell in its environment.

Answer:

The rock cycle is a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Each rock type is altered when it is forced out of its equilibrium conditions. For example, an igneous rock such as basalt may break down and dissolve when exposed to the atmosphere, or melt as it is subducted under a continent. Due to the driving forces of the rock cycle, plate tectonics and the water cycle, rocks do not remain in equilibrium and change as they encounter new environments. The rock cycle explains how the three rock types are related to each other, and how processes change from one type to another over time. This cyclical aspect makes rock change a geologic cycle and, on planets containing life, a biogeochemical cycle.

Answer:

basic concept in geology that describes traditions through geologic time among the three main rock types.

Explanation:

it is formed under extreme pressure and temperature deep inside mountain chains.

Answer:

Both chromatin and chromosome structures are nucleoprotein complexes in which chromatin is uncondensed part whereas chromosome is condensed part.

Explanation:

Chromatin, made up of DNA and protein, compactly forms into chromosomes visible during cell division. The structure of chromosomes is a direct result of how chromatin is arranged and packed.

The relationship between chromatin and chromosomes is essentially related to their structure and function inside a cell. Chromatin is a substance within a chromosome consisting of DNA and protein. It is the material that makes up the chromosomes when a cell is at rest. Chromosomes, on the other hand, are highly condensed structures formed by chromatin that are visible during cell division. Therefore, the structure of chromosomes is directly derived from the arrangement and packing of chromatin.

https://brainly.com/question/34277184

#SPJ12

However both Rhinoceros and Paraceratherium belong to the same kind species, they have some differences in some aspects.

Explanation:

1. The accurate size of Paraceratherium is undiscovered because of the incompleteness of the specimens. but some analyses show that Paraceratherium is larger than rhinoceros.

2.No, their facial composition differs because Rhinoceros have a large horn in its front but Paraceratherium doesn't have.

3.paraceratherium had large, tusk-like teeth and The legs were long and pillar-like. rhinocerous have a strong, cylindrical body with a large head, almost short legs, and a tiny tail.

4.yes they have overall related developments in their edifice and behaviors.

5.Image

Answer:

B.

to serve as a judge when asked to hear a legal case

hope this helps

Answer:

B

Explanation:

Answer:

When acid rain falls on the marble stone, it dissolve calcium when the acid present in the rain water react with the calcium of the marble stone.

Explanation:

Acid rain is formed when gases such as carbondioxode and sulfur dioxide etc that is emitted from vehicles and industries goes to the atmosphere and react with the water present in the form of clouds and formed the water acidic. When this water comes down to the earth, it damage many materials due to acid present in it.

Infinite variety in the living world, known as biological diversity, is a result of evolutionary processes and mutations that allow organisms to adapt to different environments. These adaptations lead to a range of species that can survive under various conditions, thus contributing to the vast diversity of life on Earth.

The question 'why is there infinite variety in the living world?' touches on the concept of biological diversity, which refers to the multitude of different species of plants, animals, and microorganisms that exist on Earth, as well as the complexity of ecosystems they form. There are over a million known species, and scientists estimate that this is just a fraction of the total number that exists. The vast variety of life is attributed to evolution and the concept of mutation, where random changes in genetic material create new traits that can be advantageous for survival. Organisms that are better suited to their environment tend to have greater reproductive success, as per the principles of natural selection. Over time, as environments change, the process of natural selection favors the survival of organisms that have beneficial mutations, leading to a rich diversity of species adapted to a wide range of environments.

Environmental changes can be both gradual and sudden, such as natural disasters, which also play a role in shaping the diversity of life. Species diversity ensures that at least some life forms can survive and thrive amidst various environmental shifts. The biodiversity we observe today is a snapshot of a dynamic, ongoing process of species adaptation and evolution.

Answer:

Energy in an ecosystem is mainly made by the producers of an ecosystem. The net primary productivity in an ecosystem depends on many factors. Some of them are:

Final answer:

Ecosystem productivity is mainly influenced by abiotic factors such as temperature and moisture, with net primary productivity being a key measure. Warm, wet climates lead to higher productivity, while extreme conditions result in lower levels. These factors dictate the type and abundance of plant and animal life in various biomes.

Explanation:

Factors that influence ecosystem productivity are primarily determined by abiotic factors like temperature, moisture, and availability of resources. In terrestrial environments, net primary productivity is a critical measure, representing the rate at which plants produce organic matter through photosynthesis minus what is used during cellular respiration. This productivity is largely dependent upon conditions favoring plant growth, such as warm and wet climates that facilitate efficient photosynthesis, enzymatic activity, and minimal water loss through transpiration.

Biomes such as tropical rainforests exhibit high net primary productivity due to optimal growth conditions. In contrast, environments such as deserts or tundra biomes, with extreme temperatures and limited water, display much lower levels of primary productivity. This, in turn, affects the type and abundance of animal life they can support. Consequently, changes in abiotic factors like climate can have significant impacts on the productivity of ecosystems worldwide.

The stage of the cell cycle could be mitosis, cytokinesis, or interphase, depending on the cell's current activities and appearance. Mitosis is where the nucleus divides, cytokinesis is where the cytoplasm splits into two new cells, and interphase is a preparatory phase where the cell grows and DNA replicates.

The question seems to be asking at which stage of the cell cycle a particular cell is, but without a visual representation or further details, it's impossible to definitively say. However, let's explain what happens in each stage. Mitosis is the part of the cell cycle in which the nucleus of the cell divides. It's generally preceded by interphase and followed by cytokinesis. Cytokinesis is the stage where the cell's cytoplasm splits, creating two separate cells. Meanwhile, interphase is the phase in which a cell prepares and grows before mitosis, and it also is the stage where DNA replication occurs. Hence, a cell could be in any of these phases based on its activities and appearance.

https://brainly.com/question/31898914

#SPJ2

The cell is in the stage of mitosis.

The correct option is (a).

- Mitosis is the phase of the cell cycle where the cell divides its nucleus into two identical nuclei.

- During mitosis, the chromosomes condense, align at the metaphase plate, separate into two sets, and move to opposite poles of the cell.

- This stage is crucial for growth, repair, and asexual reproduction in organisms.

- Mitosis is followed by cytokinesis, where the cytoplasm divides, resulting in two daughter cells with identical genetic material.

- Interphase, the longest phase of the cell cycle, precedes mitosis, during which the cell prepares for division by growing, replicating DNA, and performing its normal cellular functions.

Answer:

Peyer's patch

Explanation:

Answer:

When dog excrement reach the bodies of water transported by rainwater, producing the rapid growth of algae, this process is called eutrophication, and involves the crowd out other organisms in the ecosystem.

Explanation:

The dog's excrement contains nitrogen and phosphorus, which produces the enrichment of the body of water, and allows the development of algae in them.

Eutrophication consists of the process by which a water source acquires nutrients, especially nitrogen and phosphorus, which promote the growth of algae, in addition to the increase of other life forms, altering the existing ecosystem.

This process usually occurs with agricultural runoff, where fertilizer residues reach the water and produce its enrichment. It's also possible to observe eutrophication when excrement or other natural waste, rich in nitrogen and phosphorus, reaches a water source.

Eutrophication is also called hypertrophication.

Learn more:

https://brainly.com/question/946565

Answer: The closer light was appeared (or looked) brighter

Explanation:

The students notice that the closer flashlight appeared brighter. This perception is due to a physical law known as the Inverse Square Law, which explains that light intensity decreases with distance.

In the classroom scenario presented, the students notice that the closer light appears brighter than the light which is farther away. This is because of a known concept in physics called the Inverse Square Law, which states that the intensity of a light (in this case, or radiation) drops significantly as you move further from the source. So, even though both Maurice and Jessica have identical flashlights, the light from Jessica's flashlight appears less bright due to the increased distance.

https://brainly.com/question/30562749

#SPJ2

Answer:

The respiratory system.

Explanation:

The circulatory system works with the respiratory system. The circulatory system transports oxygen through the body, while the respiratory system supplies the body with that oxygen.

I hope this helps. Happy studying. :)

Answer:

Career counselling is one of the best methods which can help students to develop a career in their field of interest. While choosing a career, the students should keep in mind that they should chose the option in which they are interested. The students should spend time in exploring different careers in their field of interest and choose accordingly.

Answer:

B

Explanation: