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Answer:

Soil erosion and lost of fertility.

Explanation:

The farming practices that expose topsoil to water and wind often result in erosion of the soil because the wind and water takes particles with them. If water and wind removes the soil particles continuously then the land become barren and lost its fertility which leads to lower production of food crops that  ultimately threaten the food production for the population.

Answer:

single

Explanation:

A prokaryote is a simple, mostly single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in a central part of the cell: the nucleoid.

Answer:

B

Explanation:

The structure of the mitochondrion is key to the process of aerobic (in the presence of oxygen) cellular respiration, especially the Krebs cycle and electron transport.

Answer:

Dude rihgt click press inspect find where they keep the awnsers

Explanation:

DOne BRUDDA

If a coding sequence does not have a promoter before it, it is unlikely that it will be transcribed into RNA or protein.

A promoter is a sequence of DNA that regulates the expression of a gene, which is the coding sequence that encodes for either RNA or protein. The promoter provides the initiation site for transcription, the process by which RNA is synthesized from the DNA template.

If a coding sequence does not have a promoter before it, it is unlikely that it will be transcribed into RNA, and even if it is transcribed, it will not be translated into protein. This is because the promoter is responsible for regulating the expression of the gene, and without it, the gene will not be activated and its product will not be produced.

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Answer: exocytosis

Explanation:

- When molecules are too large or too charged to cross the plasma membrane by diffusion or osmosis, they use vesicular transport, also known as exocytosis. In vesicular transport/exocytosis, vesicles allow large molecules to exit the cell because the vesicle fuses with the plasma membrane and its contents spill out.

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A method for sterilizing milk, called Ultra-High Temperature (UHT) treatment, uses 134°C for 1 to 2 seconds.

UHT treatment is a heat processing technique that destroys harmful microorganisms and enzymes present in milk, ensuring its safety for consumption while extending its shelf life. The process involves rapidly heating the milk to the specified temperature and holding it there for a very short duration before rapidly cooling it down.

The main advantage of UHT treatment over other methods, such as pasteurization, is that it results in a longer shelf life for the milk. This is due to the fact that a higher temperature is used, which effectively kills more bacteria and inactivates harmful enzymes, minimizing the chances of spoilage. Another benefit of UHT treatment is that it allows milk to be stored at room temperature without the need for refrigeration, reducing energy consumption and making transportation and storage more cost-effective.

UHT-treated milk is widely consumed globally, and the process is considered safe and effective for sterilizing milk. In summary, UHT treatment is a popular method for sterilizing milk that uses a temperature of 134°C for 1 to 2 seconds. It provides an extended shelf life, allowing milk to be stored at room temperature, but may affect taste and nutritional content.

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When the defective phage enters a new bacterial cell A) only phage DNA integrates into the chromosome of the new host cell.

In the absence of essential genes or regions, the phage DNA may not be capable of directing the production of new phage particles, but it can integrate into the chromosome of the bacterial host cell.

This process is called lysogeny, and it results in the formation of a prophage. The prophage DNA may remain latent within the bacterial chromosome, or it may be activated by certain factors (e.g., stress, UV radiation) to produce new phage particles.

In this way, defective phages can contribute to the genetic diversity of bacterial populations and potentially affect their virulence or pathogenicity.

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Answer:

Explanation:

The inevitable, involuntary responses to stimuli that are primarily controlled by circuits located in the spinal cord and brainstem are referred to as reflexes.

Reflexes are involuntary responses to certain stimuli that occur without any conscious thought. They are typically automatic and rapid responses to specific stimuli and involve both the peripheral and central nervous systems. The pathways that transmit reflex signals involve afferent and efferent nerve fibers that travel between the spinal cord and brainstem and the muscles and organs being stimulated.

For example, when a doctor taps your knee with a reflex hammer, the impulse is sent along the sensory neurons to the spinal cord and then back to the muscles of the leg causing them to contract. Other reflexes involve unconscious actions such as sweating, blinking, and pupil constriction. Reflexes play a role in coordination of muscle activities, posture, and balance and provide a basis for motor learning.

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Answer:

c

Explanation:

Amino acids are the monomers of protein molecule.Each amino acid molecule is made up of an amine group,caboxylic acid  group,Hydrogen atom and R-group. All are attached to the alpha  carbon.It is the R-side group that differentiate one amino group from another.

These amino acids units are joined together by the peptide bonds to form the giant protein molecules

The arrangement, the number of the amino acids and the orientation of these  amino acids  can be used to classify protein into different primary,secondary, tertiary and Quaternary levels.

Generally protein digestion begins and ends in the stomach and the small intestine. by enzymes pepesin and renin, and the activities of enzymes of the pancreas  chymotrypsin and trypsin,respectively.

The cells in the wall of the small intestine finally breakdown the digesting protein into amino acids by the activities of the enzymes there.

All three types of horizontal gene transfer (Transformation, Transduction, and Conjugation) could occur in a biofilm. The correct answer is option(a),(b), and(c).

Transformation: During transformation, bacteria can take in free DNA from their surroundings. Bacteria in close contact in a biofilm can release DNA fragments into the extracellular matrix.

Transduction: Bacteriophages (viruses that infect bacteria) transfer genetic material from one bacterium to another via transduction. Bacteriophages can infect bacterial cells and package bacterial DNA into their viral particles within a biofilm.

Conjugation is the direct transfer of genetic material between bacterial cells via a physical link known as a pilus. Bacterial cells in close contact inside a biofilm can create these pilus connections and transfer plasmids (small, circular bits of DNA containing diverse genes).

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During the study of genetics and inheritance, it is important to observe the sexual cycle of fungi to determine the genetic variations within the offspring. In the 1920s, T. H. Morgan and his colleagues used fungal genetics to test the hypothesis of the existence of recombination. For instance, they observed the sexual cycle of the common bread mold, Neurospora crassa, to investigate how crossing-over occurs between homologous chromosomes during meiosis.

As a result of their investigation, Morgan and his colleagues discovered that, during meiosis, four haploid ascospores are produced within a specialized sac called an ascus. These ascospores are produced when two nuclei from two different hyphae (cells) combine and fuse together.

This fusion creates a cell with two haploid nuclei, which subsequently undergoes meiosis to create four haploid ascospores. Hence, an ascus will contain four haploid ascospores produced by a single diploid cell resulting from the fusion of two haploid cells.

The percentage of asci observed that resulted from the fusion of cells from different strains is 100%. This is because the fusion of haploid cells from different strains is essential for the production of a diploid cell that will then undergo meiosis to form four haploid ascospores.

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Answer: Light intensity

Explanation: Because when the light intensity is more the stomata open and take in more carbon di oxide.

Answer:

\

i got 200 wpm The chances of a couple having a colorblind daughter if the man has normal color vision and the woman has normal color vision whose father was colorblind are approximately 25%.

Color blindness is an inherited trait that is passed down from parents to their children through genes. The gene for color blindness is located on the X chromosome, which means that females have two copies of this gene (one from each parent) while males have only one copy. If a woman carries the gene for color blindness on one of her X chromosomes, she will not be colorblind herself because she has a normal copy of the gene on the other X chromosome. However, she can pass the gene on to her children, particularly her daughters.

In this case, the man has normal color vision and therefore does not carry the gene for color blindness. The woman has normal color vision, but her father was colorblind, which means that she carries the gene for color blindness on one of her X chromosomes. Therefore, there is a 50% chance that she will pass the gene on to her children. If she passes the gene on to a daughter, the daughter will have a 50% chance of being colorblind because she will inherit one copy of the gene from her mother and one copy from her father. Therefore, the chances of the couple having a colorblind daughter are approximately 25%.

The chances of a couple having a colorblind son if the man has normal color vision and the woman has normal color vision whose father was colorblind are approximately 0%.

As mentioned above, males have only one copy of the X chromosome and therefore only one copy of the gene for color blindness. If the man has normal color vision, he does not carry the gene for colorblindness and cannot pass it on to his children. If the woman carries the gene for color blindness on one of her X chromosomes, she will not pass it on to

Answer:

v

Explanation:

Part A: Bb would be their genotype.

Part B: The offspring would be born with black hair if they were to have any  of the dominant alleles. (BB or Bb) Their fur would be colored white if their genotype was "bb". The uppercase "B" represents the dominant allele and the "b" represents the recessive allele. Since there's "BB" and "bb" genotypes breeding, the only outcome for their offspring would be the "Bb" genotype.

Explanation:

the answer will be sea star

Answer:

A Sea Star

Explanation:

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Answer:

The ocular micrometer has no units. Revolving Nose Piece - Several objective lenses of varying magnification and numerical aperture are mounted on the revolving nosepiece. The nosepiece must click into place for the objective lens to be in proper alignment.

False, the largest and strongest bone of the face is the mandible, not the maxilla. The mandible forms the lower jaw and supports the lower teeth, while the maxilla forms the upper jaw and supports the upper teeth.

The mandible is the biggest and strongest bone in the face. The mandible, a U-shaped bone that makes up the lower jaw, is the only bone in the skull that can be moved. The temporomandibular joint, or TMJ, is created when it articulates with the temporal bone.

The nasal bone is a tiny, rectangular bone that creates the bridge of the nose, whereas the maxillae construct the upper jaw and assist in supporting the facial features. The ear canal and middle ear components are located in the temporal bone, a paired bone that is a portion of the lateral skull. Mandible, option D, is the right response since it is the biggest and strongest bone in the face.

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Answer:

the answer is true.

Explanation:

hope it helps.

Answer:

True is the correct answer hopefully...

Answer:

2 and 3

Explanation:

no explanation please

Answer:

The gills actively uptake salt from the environment by the use of mitochondria-rich cells. some marine fish, like sharks, have adopted a different, efficient mechanism to conserve water, osmoregulation. they retain urea in their blood in relatively higher concentration.

Explanation:

Climate science is a combination of both historical science and operational science. Climate science involves understanding the Earth's past climate and current climate and predicting future changes.

Operational science is focused on studying current natural phenomena, while historical science examines past events that are not currently happening or can't be observed anymore. Climate science combines the two as it studies past climate changes and current climate changes, and uses that information to make predictions about the future. Hence, climate science is both historical science and operational science.

A person's worldview can affect how they view climate change. For example, those who believe that human beings are the primary cause of climate change may advocate for increased environmental protection measures. Others may be more skeptical about the role of human activity in climate change, believing that it is part of a natural cycle that has happened before. Still, others may deny the existence of climate change entirely, believing that it is a hoax or exaggeration by the media or scientists.  I believe that climate change is real and largely caused by human activity, but I understand that others may have different views based on their worldview and experiences. It is essential to consider different perspectives and gather as much information as possible to make informed decisions about how to address climate change.

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Answer:

protesta

Explanation:

Answer:

the answer is Protista! sorry if I'm wrong!

Explanation:

All of the choices are correct. Decomposers are consumers, saprotrophs, and heterotrophs. Bacteria and fungi are examples of decomposers.

Decomposers are organisms that break down dead or decaying organisms. They are also grouped as consumers, saprotrophs, and heterotrophs. Saprotrophs are any organism, especially a fungus or bacterium, that lives and feeds on dead organic matter.

Heterotrophs are organisms that cannot manufacture their own food by carbon fixation and therefore derives their intake of nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are secondary and tertiary consumers. Decomposers are consumers, saprotrophs, and heterotrophs while bacteria and fungi are examples of decomposers.

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Answer:oxygen

Explanation: Plant photosynthesis require light ,CO2 , Water , light for photosynthesis

Formation of oxygen is the result of photosynthesis.

Answer: Photosynthesis is the process by which plants make their own food utilizing light, water, carbon dioxide, and temperature.

Explanation: Photosynthesis can be impacted by an unfavorable supply of the four factors mentioned above. As such, the following conditions can restrict the ability of a plant to perform photosynthesis:

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The correct answer to your question is B. The crown is wider in a mesiodistal dimension than in faciolingual dimension. This characteristic is typically seen in all types of permanent incisors.

Permanent incisors are the front teeth in the dental arch, and they play a crucial role in biting and cutting food. There are four types of incisors: central incisors, lateral incisors, and left and right versions of each. Despite their differences, all permanent incisors share the common feature mentioned above. In general, the crowns of incisors have a broader mesiodistal (front-to-back) dimension compared to their faciolingual (side-to-side) dimension. This shape allows for efficient cutting and shearing of food during the eating process. It is important to note that while this characteristic is seen in all types of permanent incisors, there can be individual variations among people. These variations can be influenced by factors such as genetics and environmental factors during tooth development. Nonetheless, the broader mesiodistal dimension is a consistent and defining feature of permanent incisors.

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A Receptor Tyrosine Kinase (RTK) called Sevenless (Sev) is necessary for the Drosophila photoreceptor to be specified.

Another RTK, the Drosophila EGF Receptor, acts to specify additional Drosophila photoreceptors (DER). It has been unknown for a long time why Sev is necessary only in the R7 precursor and what precise function it serves in determining the fate of the cell. One of the many functions of Notch (N) signalling in R7 specification is to stop DER activity from deciding the fate of the photoreceptor. According to our current understanding of Sev function, in order to get around the N-imposed restriction on photoreceptor specificity, Sev hyperactivates the RTK pathway in the R7 precursor. This viewpoint assumes that DER and Sev both activate the same transduction system, with the main distinction between them being the degree of pathway activation they cause. We created a Sev/DER chimaera to test this model.

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Answer:

Airplanes have wings, just like birds. They also have a light skeleton (or framework) to decrease their weight, and they have a streamlined shape to decrease drag. The big difference is that airplanes do not flap their wings.