What did Frye and Edidin show in their experiments on the plasma membrane?Select one:a.The plasma membrane is full of integral but not peripheral proteinsb.Plasma membranes are rigid and cannot move, that is why eukaryotes do not need a cell wall.c.Only glycoproteins in the plasma membrane can moved.All proteins in the plasma membrane can rotate but not move in positione.All proteins in the plasma membrane are laterally mobile

Answer:

I think it is a male silkie

The surface area of the cell is 96μm², the volume of the cell is 64 μm³ and the surface area-to-volume ratio is 1.5 μm⁻¹.

The surface area of the cell is the area which is occupied by the surface of the object. The surface area of the cell with six sides of equal measurement = 4 μm.

Surface area of the cell can be calculated by the formula:

Surface area = length × width × number of sides

Surface area = 4 μm × 4 μm × 6

Surface area = 16 μm² × 6

Surface area = 96 μm²

The volume of the cell is the capacity of the cell. It is how much space is present inside the cell.

The volume of the cell with side 4 μm can be calculated by the formula:

Volume = length × width × height

Volume = 4 μm × 4 μm × 4 μm

Volume = 64 μm³

The surface area-to-volume ratio is the surface area divided by the volume of the cell. This indicates how much surface area is available compared to how big or the capacity of the cell is.

The Surface area: Volume ratio can be calculated as:

Ratio = 96 μm²: 64 μm³

Surface area-to-volume ratio = 1.5 μm⁻¹

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Answer: 96, 64, and 3:2.

Explanation: did the checkpoints and got it right.

Mangroves are coastal ecosystems that provide habitats, food, and protection for various species, supporting the food web.

The mangrove ecosystem is a unique and highly productive coastal habitat characterized by mangrove trees, which are specially adapted to survive in saline environments. Mangroves are typically found in tropical and subtropical regions along sheltered coastlines, estuaries, and intertidal zones.

Mangroves are vital in sustaining the ecosystem by providing various ecological services. One of their significant contributions is their role in the food web or food chain.

They serve as a critical nursery and feeding ground for a diverse range of marine species. The intricate network of roots, known as prop roots, provides habitat, protection, and feeding opportunities for numerous organisms, such as fish, crustaceans, mollusks, and birds.

The mangrove leaves and detritus that fall into the water serve as a source of organic matter and nutrients, fueling the base of the food web. Decomposers and detritivores break down the organic matter, which is then consumed by various organisms.

Small organisms, like zooplankton and small fish, feed on the decomposers and detritivores, becoming prey for larger predators such as fish, birds, and reptiles.

Furthermore, mangroves act as a buffer against coastal erosion and storm surges, protecting shorelines and adjacent habitats. They also contribute to water filtration, nutrient cycling, and carbon sequestration, and provide a habitat for numerous endangered and migratory species.

In summary, the mangrove ecosystem plays a crucial role in sustaining the food web or food chain by providing habitat, nursery areas, and food sources for a diverse array of organisms. Their presence supports the productivity and biodiversity of coastal ecosystems, making them an essential component of coastal environments worldwide.

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The process of Glycolysis is a catabolic process  in which two molecules glucose goes through a ten- step pathway and yield two molecules of pyruvate . It is a major part of carbohydrate metabolism .

Mechanism Of Glycolysis

The glycolysis is also known as EMP pathway and it is involved in both aerobic and anaerobic conditions .There are two phases in the mechanism of glycolysis in which 5 reactions takes place in each phase and the process of glycolysis takes place in cytosol

Preparatory phase refers to the  generation of two molecules of  glyceraldehyde 3-phosphate from one molecule of glucose which further goes into the payoff phase . In this phase two molecules of ATP are used and two regulatory enzymes were involved in this reaction .

Payoff phase refers to the further break down of two molecules of glyceraldehyde3-phosphate to two molecules of pyruvate . In this phase four molecules of ATP and two molecules of NADH are generated . In this phase only one regulatory enzyme is involved which is the breakdown of PEP to pyruvate  .

Both the phases of glycolysis takes place in the cytoplasm and there are  three enzymes that involved in regulating the glycolytic pathway .This process is also known as the catabolic process .

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Answer:

Combining pieces of DNA artificially is known as DNA cloning, the DNA formed is known as recombinant DNA.

Explanation:

The donor DNA that is to be combined is cut into fragments in specific sequences using restriction enzymes which are individually introduced to replicating DNA molecules such as bacterial plasmid known as vectors.

The process is Isolating -> Cloning -> Sequence DNA.

Answer:

Googl e and Kam i

Explanation:

I tried it before

Two software programs that you can use to create files that can be used in PowerPoint are Microsoft Word and Microsoft Excel.

Word is a word processing program that allows you to create and edit textual content. You can use Word to create documents, reports, and other textual content, and then easily import or copy the content into PowerPoint slides. This is particularly useful when you need to include lengthy paragraphs, bullet points, or other textual elements in your presentations.

Excel is a spreadsheet program that is commonly used for data analysis and organization. While Excel is primarily used for numerical data and calculations, you can also use it to create tables, charts, and graphs. You can then copy or import these tables, charts, or graphs from Excel into PowerPoint to enhance your presentations with data-driven visuals.

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Answer:

Explanation:All animals with a backbone and skeleton are vertebrates. Horses have backbones and skeletons, therefore they are vertebrates. Animals without a backbone are called invertebrates. Hope this helps

RT is referred to as Hiv infection (HIV) and other retroviruses carry their genetic material in the form of RNA, which is then converted to DNA by an enzyme.

There are two more retroviruses that can harm humans in addition to the one that causes AIDS, the human immunodeficiency virus (HIV). The first one is referred to as human T-lymphotropic viruses type 1 (HTLV-1), and the second one is referred to as human M o virus type 2. (HTLV-II).

Oncoviruses, Lentiviruses, or Spumaviruses make up the three families of retroviruses. A-type, A and, C-type, and D-type retroviruses are categorized as well depending on how they appear under an electron microscope.

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Hybrid sterility is a mechanism of reproductive isolation which causes postzygotic isolation, which means option B is the right answer.

Hybrid sterility is the condition in which the reproductively active adult may not be able to produce functional gametes which can participate in fertilization process. In the world of advanced medical technologies, the sterile hybrids may be considered to isolate the two populations, but their zygotes can still be formed by artificial techniques such as IVF (In vitro fertilization).

There are many examples of hybrid sterile both in plants and animals such as mules, zebroids and some human who are sterile by birth or due to some accident.  Postzygotic isolation is the condition in which the zygote formed by the fertilization of two gametes may not be able to reproduce further, a condition called as zygote mortality.

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The order of the molecules from lowest to highest ability to pass through a phospholipid bilayer is: molecular oxygen, water, a sodium ion, glucose.

The ability of molecules to pass through a phospholipid bilayer depends on their size, polarity, and charge. Here's the order from lowest to highest ability to pass through a phospholipid bilayer:

1. Molecular oxygen (O2) - small and nonpolar, can easily pass through.
2. Water (H2O) - small and polar, can pass through but slower than molecular oxygen.
3. A sodium ion (Na+) - small but charged, has difficulty passing through without help from channels or transporters.
4. Glucose - large and polar, has the lowest ability to pass through without help from specific transport proteins.

So, the correct order is: molecular oxygen, water, a sodium ion, glucose.

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The egg is surrounded by a vitelline coat and a thick outer jelly layer.

One of the main differences between internal and external fertilization is the degree of control over the fertilization process. With internal fertilization, the male and female have more control over the timing and location of fertilization, which can help ensure the survival of the offspring. With external fertilization, the success of fertilization is often more dependent on environmental factors, such as water currents or wind, and the offspring may face more risks from predation or other environmental factors.

Overall, the type of fertilization used by an animal is often related to its environment and reproductive strategies, with internal fertilization generally associated with more complex organisms that have higher levels of parental care, while external fertilization is more common in simpler organisms with fewer specialized reproductive structures.

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In a population, 12 Students must complete their eval for the p allele to become fixed.

To determine how many more students must complete their evaluation for the p allele to become fixed, we need to calculate the frequency of the p allele in the current population. We can do this using the formula:

p = number of p alleles / total number of alleles

Since we are dealing with a diploid organism, each individual has two alleles, so the total number of alleles in the population is 26 (13 students x 2 alleles per student). If p = 0.146, then the number of p alleles in the population is:

number of p alleles = p x total number of alleles

number of p alleles = 0.146 x 26

number of p alleles = 3.796

We can't have a fraction of an allele, so we round up to 4 p alleles in the population. To calculate how many more students must complete their evaluation for the p allele to become fixed, we need to consider that fixation occurs when the frequency of one allele is 1 (or 100%). Since there are only two alleles in this population (let's call the other allele q), the frequency of q is:

q = 1 - p

q = 1 - 0.146

q = 0.854

So, if the p allele is to become fixed, all individuals in the population must have the p allele. Currently, there are 4 p alleles in the population, which means there are 22 q alleles (since there are 26 total alleles). Each student has two alleles, so there are still 11 students whose allele frequencies are unknown. To calculate how many more students must have the p allele for it to become fixed, we need to calculate the number of q alleles that remain:

number of q alleles = q x total number of alleles

number of q alleles = 0.854 x 26

number of q alleles = 22.204

Again, we can't have a fraction of an allele, so we round up to 23 q alleles. This means that at least 12 students (since each student has two alleles) must have the p allele for it to become fixed, which will result in a p frequency of 1 (or 100%) and a q frequency of 0.

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Answer:

A The life cycle of flowering plants begins with a seed.

Explanation:

Seeds are structures found only in a group of plants called higher plants, comprising of gymnosperms and angiosperms. Seeds are the developed/fertilized ovules of a plant.

Seeds are basically the reproductive unit of the angiosperms, also called FLOWERING PLANTS i.e. plants that produce flowers (reproductive structures). This means that the life cycle of flowering plants begins with the germination of the EMBRYO in a SEED.

Exhaling removes waste from the body by expelling carbon dioxide through the respiratory system.

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Answer:

i think its 2

dog have 2 eyes and cat also have 2 eyes

A single age distribution graph comparing males and females of a given population can provide a wealth of information. Three of the most important measures that can be obtained from such a graph are the population size, the age structure, and the gender ratio.

The population size can be determined by adding the total number of males and females represented in the graph. This is an important measure of the overall population size, and can be used to compare the population size of different countries or regions.

The age structure of the population can be determined by looking at the distribution of males and females across different age groups. This is an important measure of the demographic makeup of a population, and can be used to identify trends in population growth or decline.

Finally, the gender ratio of the population can be determined by comparing the number of males and females in each age group. This is an important measure of the overall gender balance in a population, and can be used to identify areas where there is a need for greater gender equality.

In conclusion, a single age distribution graph comparing males and females of a given population can provide a wealth of information. Three of the most important measures that can be obtained from such a graph are the population size, the age structure, and the gender ratio.

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Answer:is true that identical twins share their DNA code with each other. This is because identical twins were formed from the exact same sperm and egg from their father and mother. (In contrast, fraternal twins are formed from two different sperm and two different eggs.)

Our father has different dna from your mother so yes

A pseudo-class which is the first descendant of the parent that matches the specified type is:

a. :first-of-type

The CSS selector:first-of-type is used to pick the first element of a type within its parent element. It is useful for styling the first appearance of a certain element within a parent element. If you have a list of things, for example, you may use:first-of-type to style the first item in the list differently.

The:first-choice pseudo-class is an experimental CSS selector that is used to choose the first element of a type that matches a particular criteria inside its parent element. This selector isn't supported by all browsers yet and isn't part of any CSS standard.

The CSS selector:only-of-type is used to pick the only element of a type within its parent element. When you wish to style the lone element of a specific type within its parent element differently, use this selector. If you have a list of things, for example, you may use:only-of-type to style the single item in the list differently.

The:only-child pseudo-class is a CSS selector that is used to pick the parent element's only child element.

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The flexibility of spider silk determined by the structure of its molecules is quite strong.

The components that make up spider silk are what give it its flexibility. Proteins called fibroins, which are made up of amino acids organised in a certain sequence, make up spider silk. The arrangement of amino acids in fibroin proteins results in a helical structure, which is held together by hydrogen bonds between the amino acids.

The fibroin protein chain's exact arrangement of amino acids and hydrogen bonds produces a special blend of strength and flexibility. The silk is flexible enough to stretch and absorb energy without breaking and robust enough to resist significant stress. Spider silk is a fantastic material for many uses, including clothes, medical equipment, and even bulletproof vests, thanks to its unique mix of qualities.

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Answer:

the last one

Explanation:

Answer:

The first 2 are correct.

Explanation:

They are the only 2 functions of water that actually happen in your body.

A pelican with excellent eyesight has the ability to spot fish in water from above, diving down to catch them.

A pelican is a water bird that has evolved to be able to dive into the water to catch fish. Pelicans are known for their large bills, which they use to scoop up fish from the water. A pelican with excellent eyesight has the ability to spot fish in water from above, diving down to catch them.

Pelicans have a unique set of adaptations that allow them to spot fish from above the water's surface. Pelicans have large eyes that are well-suited to detecting movement, which is essential for spotting fish in the water. They also have the ability to adjust the lenses in their eyes to focus on objects both in the air and underwater

.Their keen eyesight and keen sense of hearing make them excellent hunters, and they are known for their ability to spot fish even in murky water.

Once a pelican spots a fish, it will fold its wings and dive headfirst into the water to catch it. Pelicans can hold their breath for up to a minute while they dive underwater to catch fish, and they can swallow their prey whole. Pelicans are fascinating birds that have a unique set of adaptations that allow them to thrive in their aquatic habitat.

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The hypothalamus, besides controlling water balance, appetite, sleep, blood pressure and temperature, also secretes hormones to stimulate or supress the releasing of hormones by the pituitary gland. That means that the hypothalamus regulates if the pituitary gland is active or not. Therefore, the correct answer is a) activate the pituitary gland.

Answer: Electroporation

Explanation: Electroporation, or electropermeabilization, is a microbiology technique in which an electrical field is applied to cells in order to increase the permeability of the cell membrane, allowing chemicals, drugs, or DNA to be introduced into the cell (also called electrotransfer).

Answer:

A

Explanation:

Electroporation

Answer:

one has a cell wall and tge other doesnt

Answer:

Pollution, which adds chemicals, heat, and noise to the environment beyond its capacity to absorb them. This causes widespread harm to organisms. Human overpopulation, which is crowding out other species. It also make s all the other causes of extinction worse.

Answer:

Areas of high pressure

Explanation:

Explanation:

RNA growth is always in the 5′ → 3′ direction: in other words, nucleotides are always added at a 3′ growing tip, . Because of the ANTIPARALLEL nature of the nucleotide pairing, the fact that RNA is synthesized 5′ → 3′ means that the template strand must be oriented 3′ → 5′.

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