Agricultural job market today is different than it was 100 years ago because of better technology has allowed farmers to feed more people and requires fewer people to work on farms to feed their families.
The manner that farmers are able to farm and raise food has been greatly impacted by changes in equipment. In the past, farmers had to use hand labour or equipment drawn by horses to complete field work. Over the past 50 years, the agriculture industry has undergone a significant transformation.Farm equipment has become larger, faster, and more productive because to technological advancements, allowing for the more effective cultivation of larger areas. Additionally substantially enhanced, seed, irrigation, and fertilisers have helped farmers boost harvests. The crops on old farms weren't watered by sprinklers. Pesticides to fight off pests and insects weren't available. They lacked tractors.
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Hormone: Exocrine: Endocrine: Humoral stimuli: Neural stimuli: Hormonal stimuli: Permissiveness: Synergism: Antagonism:
Hormones are released by endocrine glands by three mechanisms including humoral stimuli, neural stimuli, and hormonal stimuli.
Humoral stimuli, hormonal stimuli, and neurological stimuli are the three main ways that endocrine glands are triggered to produce and release hormones. A change in extracellular fluids like blood or the ion content in the blood that impacts the release of hormones is known as a humoral stimulus. A hormone is released in reaction to a hormonal stimulus, which is the release of another hormone. Some endocrine glands release hormones when they are stimulated by hormones produced by other endocrine glands. When the neurological system directly triggers the release of hormones from the endocrine glands, this is referred to as a neural stimulus.
Negative feedback is primarily responsible for controlling hormone release and production. A stimulus causes the release of a substance in negative feedback systems; when the substance reaches a specific level, it sends a signal that prevents further release of the substance. By doing this, a specific range of hormone concentrations in the blood is maintained.
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describe at the molecular level how cells extract energy frm starches proteins and lipids by the process of aerobic respiration
What are geohazard and how can they affect our live and our property? Decribe the data that are available for u to predict and locate variou geohazard
Geohazards refer to natural phenomena that have the potential to cause damage to people, property, and infrastructures.
Geohazards or geological hazards may include landslides, earthquakes, volcanic eruptions, floods, and coastal erosion, among others that can have significant impacts and damages on communities, including loss of life, injury, and damage to homes, buildings, and infrastructures.
To predict and locate various geohazards, scientists and researchers use a variety of data sources, including geological mapping, satellite imagery, ground-based monitoring, and historical records. For example, geological mapping can provide information on the types of rock and soil present in an area, which can help identify areas that are more prone to landslides or earthquakes.
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What are the 4 evidences that support the theory of evolution?
Four types of evidence for evolution are listed as follows:
1. The evolution of older species as seen in the fossil record.
2. the shared chemistry and anatomy of related biological species.
3. the geographical distribution of species that are linked.
4. the genetic alterations that have been observed in living things over many generations.
Organisms undergo gradual change over long periods of time by descent with modification. This transformation results from the organism's adaptation to its changing surroundings, climatic circumstances, style of life, etc. We can support the theory of evolution with some evidence. The following are the primary examples that bolster the theory: The structure of an organism has changed with time and is no longer the same as it was in the past, according to fossil evidence. According to evidence from embryology, different species that are descended from the same evolutionary ancestor share structural characteristics. In all earthly living organisms, the evolution of their basic chemical compositions and anatomical structures is fundamentally the same. No matter how complex the creature, whether they are tiny single-celled protozoa or incredibly complex organisms with billions of cells, they all begin as single cells and reproduce themselves by similar division methods (click this button to hear the term before it is pronounced). They all have a limited lifespan, get old, and die. Another cue concerning earlier evolutionary processes comes from the regional natural distribution of closely related species. It is clear that isolated, vast land masses and groups of islands commonly established their own distinct plant and animal species.
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plasmid vectors often contain __________ genes that can be used to screen for recombinants.
Antibiotic resistance genes are frequently found in plasmid vectors and can be used to test for recombinants.
What may a plasmid accomplish during recombination?Plasmids have been utilized by researchers as tools for the replication, transfer, and alteration of genes. Since they have been utilized in research, these plasmids are referred to as vectors. Recombinant plasmids can be made by changing plasmid carriers to include DNA snippets or genes.
What shared elements are present in recombinant products?One that is employed most frequently is the lambda microorganism. Since the virus does not need to replicate in Escherichia coli, the core region of the beta genome could be removed with the aid of a suitable restriction enzyme and replaced with donor DNA inserts.
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PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
It's A.
Explanation:
Because owls and hawks have different Pray to catch and different species
50 POINTS AND BRAINLEST!!!!
What is the chemical symbol for the element sodium?
The chemical symbol for the element sodium is referred to as Na.
What is a Chemical symbol?This is referred to as the abbreviation which is used in chemistry for chemical elements, functional groups and other types of chemical compounds.
They are derived or gotten from one or two letters from the Latin alphabet and is usually written with the first letter being in capital form. It is a very important aspect in the representation of elements in a chemical reaction or equation.
Sodium is a chemical element with the symbol Na and atomic number 11 and is an alkali metal, because it is in group 1 of the periodic table. The latin name is Natrium which is therefore the reason why Na which is the first two letters with the first in capital form is regarded as the chemical symbol.
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Answer:
the chemical symbol of the element sodium is Na
A mutation in the gene for plasmin that results in non-functional plasmin can cause: O thrombin to activate. O plasminogen to clot blood faster. O blood clots will not be dissolved. O no clotting will occur.
Blood clots may not dissolve due to plasmin gene mutations that produce inactive plasmin. Therefore, statement 3 is the chosen statement.
A zymogen that starts the fibrinolytic cascade is plasminogen. The plasminogen-to-plasmin conversion results in plasminogen activation. A proteolytic enzyme is a plasmin. It is a chemical that stimulates the breakdown of proteins made from an inert plasma precursor plasminogen. Blood clot fibrinolysis and the restoration of regular blood flow are the primary physiological functions of plasmin. In other words, it is a serine protease that dissolves fibrin blood clots. It is present in human serum.
Therefore, statement 3 is correct.
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TRUE/FALSE: Food webs are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Answer:
True
Explanation:
Food webs are the best depictions of feeding relationships because they show a single path for the flow of energy through an ecosystem.
Select ALL of the correct answers. Which of the following statements is true of the body cells of an organism? A.) The body cells all perform the same functions as each other. B.) All body cells are descended from a single cell. C.) All body cells contain the same or similar genetic information. D.) The body cells can be different from each other.
Answer: I know C and D for sure...maybe B too? Not too sure
Explanation:
blank is the study of how organisms interact with their environment?
FILL IN THE BLANK PLEAS HELP ME!!!!!!!!!!!!!!!!!!!!!
Answer: Ecology is the study of how organisms interact with their environment.
which of the following statement(s) about biochemical pathways is(are) true?They are very well organized and structured O They convert an initial substrate via a series of steps into an end product O Terduredn O o product They are very well organized and structured. They convert ansi ostre via a series of steps into a nd product, and they can only for
Biochemical pathways are well organized and structured pathways which convert substrate into an end product by a series of steps. So the correct option is C
Biochemical pathways are also known as metabolic pathways. Glycolysis is a fundamental and key biochemical pathway with its mechanism taking place in the body of nearly all living organisms and acts as a major source of supplying energy to the body in the form adenosine triphosphates (ATP).
Different chemical reactions occuring at each step are linked together to generate an entire set of well defined mechanisms. Various reactants, products and intermediates are known as metabolites usually catalyzed by predefined enzymes in various enzymatic reactions.
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What are the chances of a calico being a boy?
Out of 3,000 calico cats born, only one is male. These cats are so rare that they are often referred to as feline "unicorns."
99.9% of calico cats are feminine. Two X chromosomes are required to produce a three-color (calico) coat, and an XX pair also makes the cat female. The calico fur pattern is mostly white, along with patches of two other colors. Also, since a cat's coat color is linked to her X chromosome in her cells, calico cats rarely become male. Male cells acquire only one X chromosome. That is, men usually have only one color.
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When individuals experience incongruity between their genital anatomy and gender role, they experience gender
When individuals experience incongruity between their genital anatomy and gender role, they experience gender dysphoria.
When your gender is inconsistent with how you identified at birth, this is referred to as gender incongruence. Gender incongruent individuals may identify as transgender (trans) or gender varied. Some transgender people experience gender dysphoria, which is the psychological distress brought on by a discrepancy between one's assigned sex at birth and one's gender identity.
People who identify as transgender might choose to socially confirm their gender (such as by changing their name and pronouns) or legally affirm their gender in a variety of ways (such as changing the gender markers on official documents), medical affirmation (such as pubertal suppression or hormones that promote gender equality), and/or surgical affirmation (e.g., vaginoplasty, facial feminization surgery, breast augmentation, masculine chest reconstruction, etc.).
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How does the nucleus in a cell from the embryo differ from the nucleus removed from the egg?
What is the controlled variable of the experiment, “are fingerprints inherited?”
The controlled variable of the experiment, “are fingerprints inherited?” may be the genotype of a given individual who is not a parent of target groups.
What is a controlled variable in an experiment?A controlled variable in an experiment can be defined as any condition during the experimental procedure that stays constant in order to make a plausible comparison with the members of the target groups and collect data.
Therefore, with this data, we can see that a controlled variable in an experiment is any condition that remains constant along with the experiment.
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The controlled variable in the experiment "Are fingerprints inherited?" refers to the factors or conditions that are kept constant throughout the experiment. In this case, the controlled variables could include:
1. Age and gender of the participants: To ensure consistency and eliminate any potential influences, it is important to control for the age and gender of the individuals participating in the experiment. Fingerprint patterns may change with age, so controlling for this factor helps isolate the inheritance aspect.2. Environmental conditions: The experiment should be conducted under controlled environmental conditions to minimize any external factors that could affect fingerprint patterns. This includes temperature, humidity, and any other factors that could potentially alter the fingerprints.3. Method of fingerprint collection: The technique used to collect fingerprints should be consistent for all participants. It should be standardized and applied uniformly to ensure accurate comparison and analysis of the fingerprints.4. Analysis method: The method used to analyze the fingerprints should also be consistent across all participants. This includes the tools or software used, the criteria for categorizing and comparing fingerprints, and the overall approach to data analysis.By controlling these variables, researchers can focus on studying the specific aspect of inheritance in fingerprints, without the interference of other potential factors.
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Fill the boxes to describe how precpitation forms.
Rain, hail, and snow are the three most frequent kinds of precipitation. Water droplets that fall to the Earth's surface as precipitation are referred to as rain.
What is precipitation?Raindrops develop around minute cloud condensation nuclei, such as dust particles or pollutant molecules.
Any product of barometrically condensed water vapor falling to the ground is referred to as precipitation. Rain, sleet, snow, hail, and showers are among the main forms of precipitation.
Therefore, precipitation occurs when a section of the environment becomes submerged in water vapor, causing the water to collect and "precipitate".
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The mucosa secretes ________________________________________ that chemically digests food. After food is mixed with these secretions it is called ________________________________________.
Mucosa secretes hydrochloric acid which chemically digests food. Once food is mixed with this secretion it is called chyme.
Chemical digestion is the process of changing the molecules of organic matter present in food from complex forms to simple forms with the help of enzymes.
Mucosa is a tissue that lines all cavities in our body such as the tongue and digestive tract. In the digestive tract there is tissue that lines the surface of the stomach so that the stomach wall is protected from gastric acid abrasion. Mucosa will secrete hydrochloric acid which will activate pepsinogen to become pepsin to digest food chemically, namely to break down proteins into proteoses and peptones.
Chyme is food that has been stirred and mixed with stomach acid sap and has become mush after peristaltic events. Peristalsis occurs when the wall of the stomach consisting of three layers of muscles contracts and causes a movement that stirs and mixes food with gastric juice.
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According to the last resort requirement, weshould try "everything" short of war first.
True False
The statement that “we should try everything short of war first” according to the last resort requirement is true. This means that before resorting to war, all possible measures should be taken to find a peaceful solution to a problem.
The concept of the last resort requirement is rooted in the idea that war should be avoided at all costs. War is costly in terms of human life, economic resources, and social well-being. Therefore, it should only be used as a last resort when all other options have been exhausted. In other words, war should only be used as a last resort when a situation has become so dire that it is the only remaining option.
It is important to note that the last resort requirement does not mean that war should never be used. It simply means that all other options should be tried first before resorting to war. This can include diplomatic solutions, economic sanctions, and other forms of non-violent intervention. These measures should be used to try and resolve the conflict peacefully before resorting to war.
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Select the misplaced or dangling modifier.
The future of coral reefs concerns many marine biologists; as a source of diverse fish
species, our dependence upon coral reefs for food and for marine biodiversity cannot
be overstated.
The misplaced or dangling modifier in this sentence is "The future of coral reefs concerns many marine biologists."
What is a misplaced or dangling modifier?A phrase or clause that is not obviously or logically related to the word or words it modifies. Usually at the start of a sentence, fixed by rewriting it. A misplaced modifier is a word, phrase, or clause that is separated incorrectly from the word it modifies or describes.
A dangling modifier is usually attached to the incorrect subject or has no subject to modify at all. Dangling modifiers are generally corrected by introducing the subject immediately after the modifier or including it in the modifying phrase, in this case, "The future of coral reefs concerns many marine biologists" is placed after "as a source of diverse fish species."
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What type of reaction is seen when hydrogen peroxide is added to a microbial colony of catalase-producing bacteria
What type of reaction is seen when hydrogen peroxide is added to a microbial colony of catalase-producing bacteria is the rapid formation of gas bubbles.
Catalase is an enzyme that catalyzes the reaction in which hydrogen peroxide is broken down into water and oxygen This enzyme is able to oxidize 1 molecule of hydrogen peroxide to oxygen. Then simultaneously it can also reduce the second hydrogen peroxide molecule to water
Hydrogen peroxide is one of the breakdown products of every cell that uses oxygen as an energy source in metabolic processes. When hydrogen peroxide is added to microbial colonies it inhibits the growth of one bacterial species by another. Because this compound is added to catalase-producing bacteria, the catalase enzyme neutralizes the bactericidal effect by breaking the compound into water and oxygen or gas bubbles.
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Which of the following statements is true?
Chlorophyll is contained in organelles called mitochondria.
Water is the energy source for plant photosynthesis.
A by-product of photosynthesis is carbon dioxide.
Roots have tiny root hairs that maximize the plant's ability to absorb water.
Answer: roots have tiny root hairs that maximize plants ability to absorb water
Your answer is in fact correct
Why are snails mollusks and not insects?
Snails belong to the phylum Mollusca and are not insects because their characteristics are similar to that of the Mollusca like present of calcareous shell on the outside and a soft body on the inside.
Snails are the organisms of the phylum Mollusca. They are small creatures recognized by the presence of a spirally coiled shell on the outside. They can be present on land as well as on the aquatic environment.
Mollusca is the second largest phylum of invertebrates in the Animal kingdom. The majority of its organisms are aquatic habitants. The presence of a calcareous shell is a key feature of the phylum. The example of some organisms is oysters, clams, etc.
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why does a frog have a dual mode of breathing? HOTS
How does an increase in cell size affect ratio of surface area?
As the cell radius increases, the surface area increases as the radius squared, but the volume increases as the radius cubed (much faster). Therefore, as the cell size increases, the surface area to volume ratio decreases.
Cell proliferation reduces the surface area to volume ratio. This is because as a cell grows, its volume (its internal contents) increases faster than its surface area (its cell membrane).
As cells grow larger, the surface area to volume ratio decreases dramatically, similar to an agar cube. Larger cells have to transport substances across membranes, but they deliver a larger volume and a proportionately smaller surface area.
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The diagram below shows the ways cells can release energy from food depending on if
oxygen is available.
Using the diagram below, respond to the following:
**Reference that Photosynthesis Summary sheet we first saw in lesson #1 to help
you with this!!
1. Which step(s) takes place if oxygen is available?
2. Which step(s) take place if oxygen is not available?
3. Do we make more ATP when the process is aerobic or anaerobic?
4. Which specific step of aerobic cellular respiration makes the most ATP?
Answer using complete sentences.
Glycolysis
Overview of Cellular Respiration
C6H12O6 +6026CO₂ + 6H₂O + ATP
Oxygen present
Oxygen not present
Krebs cycle
Electron transport chain
Lactic acid fermentation
Alcohol fermentation
1
+10
When oxygen is available, the Krebs cycle will run, and in the absence of oxygen, fermentation will run, and the most ATP will form in the ETC, and the majority of the ATP is derived from aerobic respiration.
What is the role of aerobic respiration?The role of aerobic respiration is to produce most of the ATPs by using oxygen, and then, in the electron transport chain, the maximum amount of ATP is generated, whereas fermentation happens in less oxygenic conditions.
Hence, when oxygen is available, the Krebs cycle will run, and in the absence of oxygen, fermentation will run, and the most ATP will form in the ETC, and the majority of the ATP is derived from aerobic respiration.
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how do the locations where photosynthesis occurs differ in prokaryotes and eukaryotes
Photosynthesis takes place on the folds in prokaryotes and in specialised organelles in eukaryotes. Prokaryotic cells don't have specific organelles or a remote nucleus.
What is photosynthesis?
Plants absorb water (H2O) and carbon dioxide (CO2) from the soil and atmosphere during photosynthesis. Water is oxidised, which means it loses electrons, while carbon dioxide is reduced, which means it receives electrons, inside the plant cell. Water is converted into oxygen and carbon dioxide into glucose as a result. After storing energy within the glucose molecules, the plant releases the oxygen back into the atmosphere.
Chloroplasts, which are tiny organelles found inside plant cells, are there to store solar energy. Chlorophyll, a light-absorbing pigment found in the thylakoid membranes of the chloroplast, is what gives plants their green hue.
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What axis is the Independent variable located?
Answer:
The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).
Example of Gateaway drugs
Depressants
Stimulants
Narcotics
Hallucinogens
Inhalants
Answer:
hallucinogens
Explanation:
they make one to hallucinate.
The cremaster muscle helps maintain testicular temperature. What does the action of this muscle suggest about how it is controlled
The cremaster muscle is controlled by the sympathetic nervous system.
The sympathetic nervous system is responsible for the "fight or flight" response, and it is activated during times of stress or physical activity. The action of the cremaster muscle, which helps maintain testicular temperature, suggests that it is controlled by the sympathetic nervous system to respond to changes in the body's internal and external environment. Specifically, when the body is under stress, the sympathetic nervous system will cause the cremaster muscle to contract, drawing the testicles closer to the body and increasing their temperature. This is thought to help protect the sperm from damage due to changes in temperature. Conversely, when the body is at rest or in a relaxed state, the cremaster muscle relaxes, allowing the testicles to hang away from the body and decrease in temperature, which is optimal for sperm production.
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