why can electron microscopes magnify smaller objects than optical microscopes?

Answer:

light microscope

Explanation:

Answer:

B)provide molecular or genetic information, as well as morphological information.

Explanation:

Systematics is the science of classification and phylogeny reconstruction. Studies diversity as a consequence of evolutive history and establishes the bases to reconstruct biological patterns and formulate hypotheses to explain the processes of these patterns. It reconstructs the origin and diversification of a taxon. Systematics creates systems of classification represented in a tree. Taxonomy is based on systematics.

The main goal of systematics is to solve the genealogical relationship between different species and biological groups that produces natural clusters.

Systematic considers morphological characters, as well as physiological, cytological, molecular, and behavioral characters.  

Answer:

Glucose and amino acid.

Explanation:

If your body lacks enzymes that break down carbohydrates, it would be unable to get glucose for energy production while on the other hand, if you lacked the enzyme to digest proteins, you may not absorb enough amino acid that our body needs for the formation of muscles. Enzymes play a great role in the breakdown of macro food particles into simpler molecules so that it can be absorbed by the cells.

Answer:

A: Sugar Molecules

B: Amino Acids

Hope this helps!

Explanation:

The name of method used to freeze liquid or semi-liquid foods is known as "cryogenic freezing".

The name of method used to freeze liquid or semi-liquid foods is known as "cryogenic freezing". This method involves exposing the food to very low temperatures (usually below -150°C) in a controlled environment. The process is called "cryogenic" because it uses a cryogen, which is a substance that is extremely cold and can cause rapid freezing. This method is commonly used in the food industry to preserve the quality and freshness of products such as ice cream, frozen yogurt, and other dairy products. Cryogenic freezing allows for the formation of smaller ice crystals, which results in a smoother texture and better flavor retention. Additionally, it is a quick and efficient way to freeze large quantities of food at once.
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A- Decreased uptake of blood glucose by muscle cells would NOT occur in response to reduced blood insulin levels.

Insulin is a hormone released by the pancreas that plays a key role in regulating blood glucose levels. When insulin levels are reduced, such as in conditions like diabetes or during fasting, certain processes occur in response.

Option A states that there would be a decreased uptake of blood glucose by muscle cells. This is incorrect. In the absence or reduction of insulin, muscle cells become less responsive to glucose uptake, resulting in decreased glucose uptake by the muscle cells.

Options B, C, and D are all correct responses to reduced blood insulin levels. When insulin levels are low, glycogen breakdown (glycogenolysis) occurs, leading to increased conversion of glycogen into glucose by the liver (not muscle cells), and glucose utilization increases as cells rely more on glucose as a fuel source. Additionally, there is an increased utilization of fatty acids as fuel in the absence of sufficient insulin.

Therefore, option A is the correct answer as decreased uptake of blood glucose by muscle cells would not occur in response to reduced blood insulin levels.

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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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Answer:

Bed rock .!!!!!!!!!!!!

It seems that the scenario you described involves a shark living in a river, which is usually associated with freshwater, while most sharks are known to inhabit saltwater environments such as oceans. The key term to understand this phenomenon is "brackish water."

Brackish water is a mix of both freshwater and saltwater, typically found in estuaries where rivers meet the ocean. Some species of sharks, such as bull sharks, have the unique ability to adapt to varying salinity levels in their environment, which allows them to swim from saltwater to freshwater areas.

Osmoregulation is the process by which an organism maintains the balance of water and ions in its body. In the case of bull sharks, they have specialized kidneys that can filter out excess salt when they are in freshwater or retain more salt when they are in saltwater.

It could have swum up the river from the ocean, entering the freshwater environment in search of food, like the fish Jason was reeling in. This unique ability to adapt to different salinity levels is what makes some shark species able to live in both ocean and river waters.

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The diagram implies that the peafowl and field mouse share a recent common ancestor. Option B is the correct answer.

The diagram suggests that both the peafowl and the field mouse have evolved from a common ancestor. The presence of a common ancestor indicates that they share a certain degree of evolutionary relatedness. However, without further information or a specific diagram to analyze, it's difficult to determine the exact nature of their relationship or how recent or remote their common ancestor might be.

In any case, it is clear that the peafowl and the field mouse are not unrelated (option A) and that they did evolve from older forms of life (option D).

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The question is -

Examine the evolutionary diagram below. what does the diagram imply about the peafowl and field mouse?

a. they are unrelated.

b. they share a recent common ancestor.

c. they share a remote common ancestor.

d. they did not evolve from older forms of life.

Different species and cancer rates have a complicated and nuanced relationship.

All multicellular organisms, including people, animals, and plants, are susceptible to cancer. The prevalence of cancer varies greatly between species, and a variety of factors play a role in this difference.

In conclusion, there are numerous complex factors at play in the association between cancer rates and various species.

The incidence of cancer varies greatly among species, depending on factors such as life expectancy, the environment, genetics, nutrition, and lifestyle.

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Sort the descriptions or examples into inherited or somatic mutations. inherited: Exists in all the cells of the body. inherited: Transferred via egg and sperm cells somatic mutations, Found only in a specific cell type. somatic mutations: Skin cancer caused by UV exposure,somatic mutations: Not passed onto offspring.

Somatic mutations are alterations to a person's DNA that take place in any cell that isn't a germ cell after conception (egg or sperm cell). Somatic mutations are not inherited, occur intermittently or randomly, and are not related to a person's family history. Additionally, they cannot be passed on to subsequent generations.

Genetic alterations from the germline can be inherited. The DNA is altered in reproductive cells during this sort of mutation (egg or sperm). The mutation is inherited because sperm and eggs are passed from parents to their offspring.

Somatic mutations cannot be passed on since they happen at random in cells other than sperm or eggs.

Germline mutations happen in a parent's reproductive cells. The genetic material a kid inherits from their parents is altered by these mutations.

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2.1) The early 1900s was pivotal for the science of genetics because of all of the above. Therefore, the correct option is d.

2.2) The characteristics that are shared by both bacterial and eukaryotic chromosomes are all of the above. Therefore, the correct option is e.

2.3) The part of the eukaryotic cell cycle which is not present is S0. Therefore, the correct option is c.

The early 1900s was a crucial period for genetics science due to the rediscovery of Gregor Medel's scientific discoveries, Thomas Hunt Morgan's identification of the first fruit-fly mutant, and Walter Sutton's proposal that chromosomes contain genes. Thus, the correct option is (d) All of the above.

2.2) The characteristics shared by bacterial and eukaryotic chromosomes are as follows: Centromeres, Organized around histones, Origin of replication, and Telomeres. Thus, the correct option is (e) all of the above.

2.3) The eukaryotic cell cycle is a cycle of growth and division that takes place in the eukaryotic cell. It involves four stages in the order of G1, S, G2, and M, where G stands for gap, S stands for synthesis, and M stands for mitosis. S0 is not a part of the eukaryotic cell cycle. Hence, the correct option is (c) S0.

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Biotechnology makes use of organic or living organisms to make a new product. They make use of certain types microbes. It modifies and improve certain species or microbes that can be of economic significance.

Answer - Option B

In the 1500s, Nicholas Copernicus introduced the sun-centered model of the solar system, and the model helped scientists of the time better understand the solar system as they were able to explain the motion of the planets more accurately, which is in Option D.

Nicholas Copernicus's sun-centered model of the solar system, also known as the heliocentric model, helped scientists of the time better understand the solar system by explaining the motion of the planets more accurately. Prior to this model, the widely accepted view was the earth-centered model, or the geocentric model, which held that the earth was the center of the universe and all the celestial bodies revolved around it.

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The sub-atomic clock is a metaphorical term for a procedure that utilizes the transformation pace of biomolecules to conclude the time in ancient times when at least two living things separated.

The biomolecular information utilized for such computations is generally nucleotide arrangements for DNA, RNA, or amino corrosive successions for proteins.

The sub-atomic clock can likewise be utilized for placing a progression of transformative occasions into sequential requests. This is finished by contrasting successions from various species with deciding when they last shared a typical predecessor, essentially drawing the genealogical record.

Sub-atomic timekeepers are utilized to decide how intently two species are connected by ascertaining the number of contrasts between the species' DNA arrangements or amino corrosive successions. These timekeepers are some of the time called quality tickers or transformative clocks.

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Answer:

Traits are neither dominant nor recessive.

Offspring exhibit an intermediate form of alleles from the parents.

Incomplete dominance involves the interaction of two alleles.

Explanation:

Answer:

D

Explanation:

The answer should be A from my knowledge.

Answer: red blood cells

Explanation: took the test haha

Answer:

A crocodile goes into the shade when the temperature goes high.

An example of a stimulus and response with living organisms is as follows:

A stimulus may be defined as a type of thing or event that immediately provokes a specific functional reaction by an organ or tissue in response to a specific treatment.

The information that living organisms perceive from the external world is sensed by the sense organs then with the help of nerves it sends to the brain which stimulates a specific action and sends messages to the body to react in a particular way with the respect to the stimulus.

Therefore, an example of a stimulus and response with living organisms is briefly mentioned above.

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Deletion of the polyU region downstream of the leader peptide in the attenuator region  will likely increase expression of trpb in e. coli.

The correct option is :- (c)

The polyU region downstream of the leader peptide in the attenuator region is involved in the regulation of the trp operon, which includes trpb. Deleting this region would disrupt the attenuation mechanism, resulting in increased expression of trpb in E. coli.

Anti-trap is a protein that binds to the trp mRNA leader sequence and prevents formation of an anti-terminator stem-loop structure in the attenuator region. This anti-terminator stem-loop allows transcription to continue into the trp operon, resulting in increased expression of trp genes, including trpB.

Deletion of anti-trap would lead to decreased formation of the anti-terminator stem-loop, allowing transcription to proceed into the trp operon, leading to increased expression of trp.

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ANTIBODY

Explanation:

Antibodies are Y-shaped proteins produced as part of the body's immune response to infection.

If i was designing a policy to protect islands from invasive species, the types of islands which would be focused on is Pacific island due to the absence of natural competitors which control the ecosystem.

This is referred to organisms who aren't indigenous to an area and end up becoming overpopulated in the given area.This therefore leads to the organisms causing economic and environmental harm to the new area.

This is usually caused when there is an absence of  natural predators or competitors which control the ecosystem in the area which is the reason why there is a high increase in population growth.

The Pacific island has a very low number of these natural predators and is therefore the reason why a policy will be designed in other to protect it from invasive species.

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Answer:

The population density of one classroom two years ago is 48 students per classroom.

Answer:

12

Explanation:

6H2O or hexahydrate is a group of 6 water molecules or 6 molecules of dihydrogen monoxide. When looking for the total particular number of elements in a substance, find the subscript or smaller number in front of that atom, and look out for the coefficient or bigger number of the whole substance, and multiply that coefficient by the subscript to find the total atoms of that element.

Since there are 2 hydrogen's in each molecule of water, 6 molecules would make that a total of 12 hydrogen's for 6 molecules of water.