small cells maintain more efficient transport systems because

Hershey and Chase proved that the t2 phage's genetic makeup is represented by DNA.

In a series of well-known tests, Hershey and Chase proved that the T2 phage's genetic makeup is DNA.

Hershey and Chase came to the conclusion that the genetic substance was DNA, not protein. They discovered that although the bacteriophage built a protective protein shell around itself, its capacity to create offspring inside a bacterium was imparted by internal DNA.

The last experiment, also known as the Waring Blender experiment, in which Hershey and Chase demonstrated that phages only injected their DNA into host bacteria and that the DNA acted as the replicating genetic element of phages, is the Hershey-Chase experiment that is most well-known.

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Answer:

during ovulation

Explanation:

this is when the ovaries release an egg

Gene expression is controlled by gene regulation to ultimately lead to the specialized functions of different cell types through cell differentiation.

Gene expression is the process by which the information stored in a gene is used to produce a functional product, such as a protein. Gene regulation refers to the mechanisms that control when, where, and how much of a gene is expressed.

For example, genes that control the development of a heart cell will be expressed differently than genes that control the development of a brain cell.

Gene regulation allows for cell differentiation, the process by which cells develop into different types with specific functions. For example, in the early stages of development, all cells in an organism are identical and have the ability to differentiate into any type of cell. However, as development proceeds, cells begin to differentiate into specific types, such as nerve cells, muscle cells, and blood cells. Each type of cell has a unique set of genes that are expressed, leading to their specific functions and characteristics.

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1) Abrasion is the type of physical weathering that causes the sugar cube to change its size and shape. Abrasion is the wearing down of an object caused by friction and the impact of smaller particles against its surface. In this experiment, the sugar cube is abraded by the sugar granules in the cup.

2) This experiment relates to your observation of coarse and fine sand in that the sugar granules can be seen as a very fine sand, while the sugar cube represents a larger, coarser object. As the sugar granules move around the sugar cube, they slowly abrade away the cube's edges, changing its size and shape.

3) This experiment also relates to weathering of river stones. Just like the sugar cube, river stones can be eroded and abraded by particles in the river. As the stones are moved around by the river's currents, smaller particles such as sand and silt wear away at the edges of the stones, causing them to change their size and shape over time.

4) Granite will become smooth and rounded faster. This is because granite is a harder and tougher rock than limestone, and it is more resistant to being eroded by the water. Limestone is more prone to chemical weathering, which causes the rock to break down and become smooth and rounded.

What is physical weathering?

Physical weathering is the process of breaking down rocks, soils, and minerals into smaller pieces through physical processes such as abrasion, freeze-thaw, exfoliation, and biological activity. Physical weathering does not involve a change in the chemical composition of the material, but rather a change in its physical form.

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Answer:the kidneys filter the blood to remove waste then,the ureters are a pair of tubes that carry urine from the kidneys to the urinary bladder then,the urinary bladder is a sac-like hollow organ used for the storage of urine then, The urethra is the tube through which urine passes from the bladder to the exterior of the body.

Explanation:hope this helped

Storage polysaccharides and structural polysaccharides are both made up of glucose monomers, but they have different properties and functions due to the way the monomers are linked together.

Storage polysaccharides:

Structural polysaccharides:

In summary, storage polysaccharides are used for energy storage, while structural polysaccharides are used for support. Both types of polysaccharides are made up of glucose monomers, but their properties and functions differ due to the way the monomers are linked together.

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Answer:

true

Explanation:

i did the question :)

yw

Protein synthesis is the process by which cells use genetic information to build proteins. The process of protein synthesis is often divided into two stages: transcription and translation.

During transcription, genetic information is transcribed from DNA to a molecule called messenger RNA (mRNA). During translation, the information in the mRNA is used as a template to build a protein. This process of using mRNA as a template to build a protein is called translation.Translation begins when the mRNA molecule leaves the nucleus and enters the cytoplasm of the cell. In the cytoplasm, the mRNA molecule binds to a ribosome, a cellular structure responsible for protein synthesis.

The ribosome reads the sequence of nucleotides in the mRNA, and matches them to the corresponding amino acids. This is done with the help of transfer RNA (tRNA), which brings the correct amino acids to the ribosome.The ribosome moves along the mRNA, adding amino acids to the growing protein chain. The peptide bonds between the amino acids are formed by enzymes within the ribosome, and the protein is continuously elongated until the ribosome reaches a stop codon on the mRNA. At this point, the protein is complete and is released from the ribosome.

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Lysosomes  Uses chemicals to break down food and worn out cell parts - I clean things up! Hint: Lysol. (found in BOTH PLANTS + ANIMALS because...)

Lysosomes are membrane-bound organelles present in many animal cells.  They are spherical vesicles that contain hydrolytic enzymes capable of degrading a wide range of biomolecules.

A lysosome contains a unique mix of membrane proteins as well as lumenal proteins. The pH of the lumen (4.5-5.0)[2] is optimum for the enzymes engaged in hydrolysis, which is equivalent to stomach action. Aside from polymer breakdown, the lysosome is engaged in a variety of cell functions such as secretion, plasma membrane repair, apoptosis, cell signaling, and energy metabolism.

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Crossover, tetrad formation, and homologous chromosomal pairing are a few of the processes that happen during meiosis but not during mitosis.

Synaptogenesis is the process of homologous chromosomal pairing during prophase I of meiosis. The synaptonemal complex, a protein scaffolding structure that exists between homologous chromosomes and encourages genetic recombination. Following diakinesis, the next stages of meiosis I proceed very similarly to mitosis. Meiosis II does not include genetic material travelling across or recombining between chromosomal pairs, in contrast to meiosis I. This takes place in the lengthy and intricate prophase I of meiosis I, which has five subphases. Only during meiosis do homologous chromosomes connect and form synapses. This happens during prophase I. Now that it has been established that chiasmata are the product of genetic recombination, the paired chromosomes are known as bivalents.

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Codons are units of genomic information made up of three nucleotides (trinucleotides) in DNA or RNA that code for a specific amino acid or indicate the end of protein synthesis (stop signals).

An amino acid is encoded by a codon, a triplet of nucleotides. An amino acid is encoded by each trio of nucleotides. A, U, G, and C are the four nucleotides found in mRNA, and together they can be combined in 64 distinct ways because codons are three-letter structures. The remaining three of these 64 codons are stop signals that signal the completion of protein synthesis, and 61 of these codons correspond to amino acids. UAG, UAA, and UGA are the three STOP codons found in the genetic code.

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Blood flow through the heart via arteries, ventricles, veins, and valves.

1. An electrical signal is sent to the heart

2. Signal from the atrium's nodes

3. The atria agreement

4. The atrioventricular node receives a signal

5. Signal sent to the ventricles

6. Contraction of the ventricles

The complete question:

"place the steps describing how blood flows through the human heart in order.

signal transferred to the ventricles

the atria contract

electrical signal travels toward the heart

the ventricles contract

signal by the nodes in the atrium

signal received by the atrioventricular node."

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Most facets of our life depend on biodiversity. We value biodiversity for a variety of factors, some intrinsic and some pragmatic.

This means that we appreciate biodiversity for both what it offers to humanity and for its own sake. The many essential requirements that humans derive from biodiversity, such as food, fuel, shelter, and medicine, are included in utilitarian values.

Additionally, ecosystems perform essential functions like pollination, seed distribution, climate regulation, water purification, nutrient cycling, and insect control in agriculture. The value of biodiversity extends to unrealized prospective advantages like the development of novel treatments and other potential untapped services.

Humans place cultural importance on biodiversity for a variety of reasons, such as spiritual or religious ones.

Therefore, Most facets of our life depend on biodiversity. We value biodiversity for a variety of factors, some intrinsic and some pragmatic.

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Prokaryotic cells - contain DNA, were the first photosynthetic organism on earth.

Eukaryotic cells - can be specialized for specific tasks in multicellular organisms, contain DNA.

Prokaryotic cells are primitive cells with no nuclei and membrane-bound organelles. Eukaryotic cells, on other hand, are more advanced. They contain nuclei and membrane-bound organelles such as mitochondrion, chloroplasts, etc.

Both cells, however, contain DNA. The DNA of prokaryotic cells lie freely within the cytoplasm while that of eukaryotic cells are enclosed within the nucleus and organelles like mitochondrion.

Prokaryotic cells represent the first photosynthetic organisms on earth according to the theory of origin of life. Eukaryotic cells evolved later and these cells can be specilaized for specific tasks in multicellular organisms. They can form tissues, organs, and systems.

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Answer:the correct answer is the last one olt produces four genetically different cells.

Explanation:

please give brainliest

Surface microvilli are tiny projections that resemble hair and cover the cell.

Microvilli are hair-like protrusions that cover an enterocyte's surface and add to the small intestine's larger surface area.

The proximal convoluted tubule of the kidney and the epithelial cells of the small intestine both have microvilli on their exposed surfaces. The intestinal villi, which are finger-like projections at the epithelial lining of the gut wall, should not be confused with microvilli.

The apical surfaces of polarised epithelial cells include microvilli, which increase the surface area of the cell exposed to the lumen to improve absorption and secretion. Microvilli are surface-extending cells that resemble fingers.

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Muscle soreness after a workout is a normal phenomenon known as delayed onset muscle soreness (DOMS).

DOMS usually occurs 12-24 hours after a workout and can last up to 72 hours. The pain is caused by microscopic tears in the muscle fibers that occur during exercise.

These tears create inflammation, which in turn causes the soreness. The pain usually fades away as the muscles heal, but can be relieved with proper rest, hydration, and stretching.

DOMS can be prevented with proper warm up before exercise and cooling down afterwards. A warm up will increase the temperature of your muscles, helping to prevent injury and reduce soreness. Cooling down helps to return your body to its pre-exercise state.

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Smooth muscle cells in the visceral organs are controlled by the autonomic nervous system, and muscle cell contraction or relaxation plays a significant physiological function in the control of blood pressure, motility of the digestive, respiratory, and urinary tracts, and secretion.

The nervous system is a highly complicated element of an animal that organizes its actions and sensory information by sending messages to and from many sections of its body. The nervous system monitors environmental changes that affect the body and then collaborates with the endocrine system to respond.

Around 550 to 600 million years ago, wormlike creatures developed nervous tissue. It is divided into two components in vertebrates: the central nervous system (CNS) and the peripheral nervous system (PNS) (PNS). The CNS is made up of the brain and the spinal cord.

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Abnormal pregnancy is a condition where a fetus or a womb has a different condition than it should be or the timelapse of the event in pregnancy are change such as baby is born before 9 month pregnancy, bleeding, etc.

The most common cause of the abnormal pregnancy is unhealthy lifestyle of the mother when she is pregnant. The habits can cause abnormal pregnancy are:

Abnormal pregnancy also can occur when the mother has a certain medical complication.

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1. 3 Doctors visits (3%) out of 100 were related to Flu in the first week of 2017.

2. Flu seasons peaks at different times each year; week 11 in 2016, week 7 in 2017, and week 5 in 2018

3. Flu is not the most common reason patients visit their doctors during the flu season because the maximum percentage of flu-related visits was 7% in 2018.

4. In the 2017-1018 flu season, the flu season began to peak earlier and also had the highest peak as shown in the graph.

5. I would recommend individuals get the flu vaccine around weeks 4 and 46 because that period marks the beginning of the peak of influenza.

The Flu season is a yearly recurring time period marked by the predominance of an influenza outbreak. In both hemispheres, the season falls during the colder part of the year. It takes around two days for symptoms to appear.

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The stomach, a large, muscular organ that resembles a sac, secretes gastric juices and hydrochloric acid that turn food into chyme.

Gastric digestive juices are secreted by the stomach, an organ that resembles a sac. The stomach's pH ranges from 1.5 to 2.5. The chemical decomposition of food and the absorption of nutrients both depend on this extremely acidic environment. Gastric digestive fluids are secreted by the stomach, an organ that resembles a sac. In the stomach chamber, an enzyme known as pepsin is responsible for protein digestion. Stomach. After food enters the stomach, digestive juices are combined with food and liquid by the stomach muscles.

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The energy transformation that occurs in a flashbulb is the conversion of chemical energy into both electromagnetic energy and thermal energy.

The chemical energy is stored in the flashbulb and is released when the bulb is triggered. This energy is then converted into both electromagnetic energy, which is the light that is emitted from the bulb, and thermal energy, which is the heat that is generated from the bulb.

The light and heat that is produced is then used to illuminate the area that the flashbulb is pointed at. This energy transformation is a very efficient process, as the chemical energy is converted into both light and heat, allowing for a bright and powerful light source.

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Axon terminals of sensory neurons are first synchronized with interneurons before chemical signals are transmitted through a second synapse, resulting in motor neuron-mediated states. An example is an interneuron.

Sensory nerve endings near the surface of the skin relay signals to neurons in the dorsal root ganglion and then to the spinal cord, where the signals are passed to relay neurons in the thalamus, the primary somatosensory regions of the cerebrum. terminates in sensory neurons. cortex.

Sensory neurons have dendrites at each end and are connected by long axons with a central cell body. A motor neuron has a cell body at one end, a dendrite at the other end, and a long axon in the middle.

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Answer:

somthing

Explanation:

somthing

Mutation, genetic drift, gene flow and natural selection can increase variation in a population.

Mutation is the process by which new genetic variations arise within a population.

Genetic drift is a random fluctuation in the frequency of alleles in a population.

Gene flow is the movement of alleles into or out of a population as a result of migration.

Natural selection is the process by which certain traits become more or less common in a population over time due to the increased or decreased likelihood that individuals with those traits will survive and reproduce.

Option c is Correct. Only falsified theories must be tested according to the scientific method.

All sciences, including chemistry, physics, geology, and psychology, employ the scientific method. Different tests and questions are posed by the scientists in various disciplines. However, they approach questions in the same fundamental way in order to arrive at rational, evidence-based solutions.

In this stage, the researcher develops a hypothesis. Experiment: During this step, various tasks are completed, including data collection, organization, and analysis. Conclusions are drawn in light of the results from the previous step. Nonscientific approaches base their results on convention, individual experience, intuition, reasoning, and legitimacy. The scientific community no longer accepts the majority of these.

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An example of a beneficial function of microorganisms EXCEPT e. increased number of illnesses.

Every human body hosts 10 microorganisms for each human cell, and those microbes make contributions to digestion, produce nutrition K, sell improvement of the immune system, and detoxify dangerous chemicals. Most of the probiotic bacterial lines defined belong to the species Bifidobacterium and Lactobacillus. Many microorganisms perform the decomposition of lifeless stays of flora and animals. Spirulina and yeast are used as single-cell proteins (superfood). Yeast is used on a business foundation for the manufacturing of alcohol through fermentation. Microorganisms perform the processing and growing old of cheese.

Thus, the correct option is e.

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Answer:

C. Nonrenewable resources.

Explanation:

Remember we already have used “ fossil fuels “ once they are used we can not reuse them again.

Climate affect human activities in South America as the food and water supplies get disrupted, and it has led to deforestation.

A significant issue in South American developing nations is deforestation. Bolivia, Brazil, and Peru are all producers that support economic expansion; yet, deforestation is a cost of doing so. By removing these trees and other vegetation, less space will be left for animals to find food, cover, and breeding grounds.

Latin America and the Caribbean (LAC) have been severely impacted by the global economic crisis. The purchasing power of all households, but mainly the poorer ones who spend a big portion of their income on food and transportation, has been weakened by rising gasoline and food prices.

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