most penicillin resistant bacteria produce enzymes called penicillinases that hydrolyze the β-

Answer:

C

Explanation:

A law is an observation; a theory is the explanation of that observation.

source: http://www.differencebetween.net/miscellaneous/culture-miscellaneous/difference-between-theory-and-law/

In science, a scientific law is a descriptive statement or mathematical equation that describes a natural phenomenon or pattern consistently observed in the natural world.

The correct statement is option c.

The statement explains what happens and is often based on empirical evidence obtained from repeated observations and experiments.

On the other hand, a scientific theory is a well-substantiated and comprehensive explanation of some aspect of the natural world. It goes beyond mere observation and provides an understanding of why and how a particular phenomenon occurs. A scientific theory is supported by a substantial body of evidence, and it can be used to make predictions about future observations or experiments.

Scientific laws and theories are both essential components of scientific understanding, and they are not ordered in terms of coming before or after each other.

Hence , C is the correct option

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Answer:

Temporal isolation

Explanation:

Temporal isolation, a type of reproductive barrier caused by variations in the timing of mating receptivity, activity, or fertility, prohibits interbreeding between different but closely related species.

In biology, temporal isolation is a form of reproductive isolation mechanism that prevents members of closely related species from mating and creating hybrid offspring.

Temporal isolation refers to the situation where two or more species reproduce at various periods. For instance, three different types of orchids live in the same rain forest.

This mechanism arises from differences in the timing of crucial reproductive events.

Therefore, Temporal isolation reproductive barrier will most likely be working against that possibility.

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Answer:

It spreads by ppl having to many contact,like if ur not wearing a mask or if u touch something then touch ur face. This virus is very dangerous,this thing has killed many many an many of ppl so u have to be careful.

Explanation:

Option 5. petal petal stamen stamen , The ABC model proposed that three gene functions—A, B, and C—act in concert to govern the identity of the floral organs—petal, stamen, and stamen.

Accordingly, the expression of the A gene alone determines how the sepals look, whereas the co-expression of the A and B genes determines how the petals seem. The carpels only need the C genes to be active in ABC model, while the B and C genes determine the identification of the stamens. According to the ABC model, attitudes are made up of three components: affect, behavior, and cognition. The term "affect" refers to how someone feels about an attitude object. ABC model Behavior expresses a stamen purpose toward a certain attitude plant. Cognitive refers to a person's attitudes about an attitude plant .

The complete question is :

In order to test the ABC Model, you genetically engineer Arabidopsis plants to express the class B gene pistillata in all four whorls. If the model is correct, what pattern of organs would you expect to develop in whorls 1 -> 4 in these plants?

1. sepal sepal carpel carpel

2. carpel stamen stamen carpel

3. sepal petal stamen carpel

4. petal carpel carpel petal

5. petal petal stamen stamen

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Answer:

Due to the closer proximity of the particles, collisions between them happen more often than in gases even if particles are moving quickly in all directions.

The given statement that bacteria are about five to ten times larger than yeasts and protozoa is false. In reality, bacteria are much smaller in size than yeasts and protozoa.

Bacteria are a type of unicellular microorganisms that belong to the prokaryotic group. They are the simplest and most abundant living organisms on earth, and they can be found in almost every environment, including water, soil, air, and the human body. Bacteria are incredibly small in size, ranging from about 0.2 to 10 micrometers (μm) in length. They are so small that they cannot be seen with the  and can only be viewed under a microscope. Yeasts are a type of unicellular fungi that are larger than bacteria. They are eukaryotic organisms that can be found in various habitats, including soil, water, and plant surfaces. Yeasts range in size from about 3 to 40 μm in length, which is much larger than the size of bacteria. Protozoa are unicellular eukaryotic microorganisms that can be found in various aquatic and terrestrial environments. They are much larger in size than both bacteria and yeasts, ranging from about 5 to 500 μm in length. Protozoa are classified into different groups based on their locomotion, feeding, and reproduction methods. Therefore, the given statement that bacteria are about five to ten times larger than yeasts and protozoa is false, and the actual size order from smallest to largest is bacteria < yeasts < protozoa.

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Answer:

All animals exhale carbon dioxide i.e. co2 but plants need co2 to live because co2 helps in the process of photosynthesis to produce carbohydrate and oxygen.

6CO2 + 6H2O → C6H12O6 + 6O2.

Answer:

snake crocodile

Explanation:

they are both reptiles and have a scaly skin and eye shape is similar

The proportion of test scores that are higher than Antoaneta score is 0.9332.

Antoaneta scored 51 points on the test with a normal average of 60 points.

Antoaneta's score is 51 − 60 = − 9 relative to the average.

Standard deviations are relative to the mean: -9/6 = -1.5

This is Antoaneta's z-score.

To find the value of the proportion of exams above the Z-score of −1.5, look at the Z-table.

Z-score −1.5 = 0.0668, the test score is below Antoaneta's score

0.0668, the test score is below Antoaneta's score

If 0.0668 the test score is below the Antoaneta score

→ 1 - 0.668 = 0.9332

Test score 0.9332, meaning that the score is 9.3% higher than Antoaneta’s.

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Answer:

1. There you have it, successful beekeeping condensed down to four general rules for good husbandry:

2. Keep bees where there are lots of flowers all season, or provide supplemental feeding.

3. Provide a warm, dry, sunny hive.

4. Suppress varroa if necessary.

Avoid synthetic miticides and pesticides.

"Ignoring the hive" is a strategy that is not employed in successful beekeeping. Because it doesn't give the colony the proper care and attention, ignoring the hive is ineffective as a beekeeping technique.

Regular hive management is necessary for successful beekeeping. This includes inspecting the colony, looking for pests and illnesses, giving the bees food and water, and regulating the hive's temperature. Neglecting the hive can lead to lower honey production, more pest and disease issues, and even colony collapse. Other strategies for effective beekeeping include choosing the correct site, giving enough space and resources, and employing the right tools and methods. In order to successfully manage their colonies and make sure that their beekeeping business is a success, beekeepers need to have knowledge and expertise.

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Answer:

D) It is selectively permeable to certain substances.

Explanation:

The plasma membrane is like the military of the cell. It's function is serving and protecting the cell from it's surroundings. Composed of proteins, it is very selectively permeable. This means it allows certain types of molecules or ions to pass on through it as a active or passive transport.

Answer:

A. It forms a barrier that controls what enters and leaves the cell

Explanation:

Please give me brainliest

Answer:

Animals only is the correct answer

Explanation:

Hope this helps you

Crown me as brainliest:)

The option that is not a future consequence of nuclear energy use is "Higher costs for new plant designs. "Increased safety and innovation is not a future consequence of nuclear energy use.

The other options are all potential future consequences of nuclear energy use. Partial reuse of energy fuel rods could lead to more efficient use of resources, smaller nuclear power facilities could make nuclear energy more accessible to smaller communities, and higher costs for new plant designs may be necessary to improve safety measures and meet stricter regulations. However, increased safety and innovation are already being pursued in the nuclear energy industry and are not solely future consequences of its use.

The other options - increased safety and innovation, partial reuse of energy fuel rods, and smaller nuclear power facilities - are all potential benefits or consequences of advancements in nuclear energy technology. However, higher costs for new plant designs are not necessarily a consequence of nuclear energy use, as technological advancements can lead to more efficient and cost-effective designs.

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Answer: These cells are different because they use the same set of genes differently. So even though each of our cells has the same genes, each cell can select which ones it wants to "turn on" and which ones it wants to keep "turned off". So when everything is working properly, each cell type only reads the genes it needs.

Explanation:

They are differentiated based on the genes that's why they perform different function.

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Answer:

Loss of habitat, pollution and release of carbondioxide gas.

Explanation:

Agriculture Deforestation causes adverse effect on the environment because due to this deforestation, thousands of species loose their habitat. Recycling of waste material helps to reduce the pollution caused by waste helps protect and preserve goods, while reducing weight in transportation, Fossil Fuel Usage release carbon dioxide and other greenhouse gases, which in turn trap heat in our atmosphere. Population growth include economic benefits such as expansion of tax bases and increased consumer spending at local businesses. Use of Plastics causes pollution due to its non-biodegradable nature.

The physical factor that is most closely linked with the mutualistic relationship coral have with zooxanthellae is light.

The zooxanthellae are photosynthetic organisms that live within the coral's tissues and provide them with energy through the process of photosynthesis. In turn, the coral provides the zooxanthellae with shelter and nutrients. Without adequate light, the zooxanthellae cannot photosynthesize and the coral may not receive enough energy to survive. Therefore, light is crucial for the survival of both the coral and the zooxanthellae in this mutualistic relationship.

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In the common cold we can say that there is a localized inflammatory response as is focused on the airways, rarely gets to the bronchi or lungs, this happens when there are complications, even more, when complications occur, these are contained in the respiratory system.

Answer:

1.ions

2.waste

3. water

4.small non-polar gases

5. nutrients  

Explanation:

all are examples of facilitated diffusion and simple diffusion

The density of the oak trees per kilometer square would be 50 trees/\(km^2\).

To calculate the density of oak trees per square kilometer, we need to first determine the total area of the 2 km x 2 km patch of land. This can be calculated as:

Total area = length x width

= 2 km x 2 km

= 4 \(km^2\)

The density of oak trees can then be calculated as:

Density = number of trees / total area

= 200/4

= 50 trees/\(km^2\)

Therefore, the density of oak trees per km^2 in the patch of land is 50 trees/\(km^2\).

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Answer:

A herbivore will consume a producer.

The assertion is true. During DNA replication, the enzyme DNA Polymerase covalently joins nucleotides to create new DNA strands.

Semi-conservatism applies to DNA replication. The double helix's strands serve as models for the creation of new, complementary strands. DNA polymerases, which require a template and a primer (beginning) and synthesise DNA in the 5' to 3' orientation, are the enzymes responsible for creating new DNA.

Only strands or primers of DNA or RNA that are base paired with the template can have nucleotides added to them by the DNA synthesis enzyme, DNA polymerase. The covalent binding of the incoming nucleotide to the primer requires the enzyme DNA polymerase.

Therefore, we can conclude that the proposition is accurate. During DNA replication, the enzyme DNA Polymerase covalently joins nucleotides to create new DNA strands.

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Answer:

From lower to higher level of magnification, the stella's view about plant cells.

Explanation:

At lower magnification, the structure of plant cell is not clear by stella but with the increase of magnification, the cell structure becomes enlarge and clearly seen different structures of plant cell by the individual. The boundary of plant cell is known as epidermis. The upper boundary of plant cell is upper epidermis and the lower boundary of plant cell is lower epidermis.

Answer:

3.3

Explanation:

no reason for the explanation

Answer:

C. 9 AU

Explanation:

The period (T) of Planet A is 432365=1.2 Earth years. The period of Planet B is 1,458365=4.0 Earth years. Kepler's Third Law states that

a3=kT2

Substituting the known values of a and T for Planet A, we have

43=k⋅1.22

64=k⋅1.4

k=45.7

Using this value for k, we can solve for the distance from Planet B to the star

a3=45.7⋅4.02

a3=731.2

a=9.0AU

An alternative solution is to notice that a3T2=k for both orbits, which means that the ratio a3T2 is the same for both orbits. So, 434322=x314582. Solving this proportion gives x3=729, so x=9.0AU.

Complete question: 9. Read the statement below. Highlight the qualitative data and underline the quantitative data.

Khloe has harvested ten white daisies from her flower garden. They smell like perfume and each flower has five petals. The stems are eight inches long, green, and feel smooth.

Answer and Explanation:

In the exposed situation:

When transforming a plant using the Agrobacterium tumefaciens plasmid system D) a defined subsection of the Ti plasmid is transferred into the plant cell.

What is transforming?

Transformation is the process by which DNA is transferred into a cell from the environment or from another cell. The word "transform" comes from the fact that the DNA molecule's genetic material is transformed, or changed, by the incorporation of new DNA. The transformed genetic material becomes a portion of the recipient organism's genome in the process of transformation.

What is a plant?

A plant is any multicellular eukaryotic organism that is photosynthetic, has cells with cellulose cell walls, and is characterized by sexual reproduction and embryonic development. They range in size from tiny mosses to towering trees, and their life cycles differ greatly depending on the species.

What is Agrobacterium tumefaciens?

Agrobacterium tumefaciens is a gram-negative soil bacterium that can cause crown gall disease in many species of plants, resulting in large tumor-like growths on roots, stems, and shoots. It is used as a vector for gene transfer to plants in genetic engineering.

What is a plasmid?

A plasmid is a small, circular piece of DNA that exists outside of the main genome in a bacterial cell. Plasmids frequently contain genes that are beneficial to the bacterium, such as antibiotic resistance genes, and can be used in genetic engineering to transport genes between cells or to alter a cell's DNA.

What specifically is transferred into the plant cell when transforming a plant using the Agrobacterium tumefaciens plasmid system?

A defined subsection of the Ti plasmid is specifically transferred into the plant cell. The Ti plasmid system used in the process is a large plasmid that Agrobacterium tumefaciens harbors and uses to cause tumors on the plant's tissue. It contains the necessary genes required to transfer the T-DNA (transfer DNA) segment into the plant's genome.

The transferred T-DNA section is incorporated into the plant's genome and is responsible for expressing the desired trait. This process is highly effective and reliable for transforming plants with new and desirable traits.

Therefore, the correct option is D) A defined subsection of the Ti plasmid.

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The population, to the nearest whole number, of bacteria after 15 days is approximately 4,769 bacteria, The correct option is E, None of the above.

To find the population of bacteria after 15 days, we can use the formula for exponential growth:

N = N₀ * \((1 + r)^t\)

Where: N = Final population after time t N₀ = Initial population r = Growth rate per time period t = Time period

Given: N₀ = 500 bacteria r = 50% per day (or 0.5) t = 15 days

Plugging in the values, we have:

N = 500 * \((1 + 0.5)^{15\)

Calculating this expression:

N = 500 * \((1.5)^{15\) N

= 500 * 9.537 N

= 4,768.5

Thus, the correct option is E, None of the above.

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The question is inappropriate; the correct question is:

The initial population of a bacterial colony is observed to be 500 bacteria. The population shows a growth rate of 50% per day, and the carrying capacity of the surrounding area is estimated to be 2,000,000 bacteria. To the nearest whole number, find the population of bacteria after 15 days.

A.  165,822 bacteria

B.  622,707 bacteria

C.  903,430 bacteria

D.  2,000,000 bacteria

E.  None of the above

Answer:

It is known as ecological homeostasis to the exchange that takes place between diverse natural means that allow to maintain a balance within an ecosystem. These adjustments are considered necessary to achieve survival. Usually, these homeostatic balances can be understood by observing populations or systems that depend on each other.

Explanation:

Answer:  In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time

Explanation: