PLEASE DO A GOOD JOB IM USING A LOT OF POINTS
Please watch the following video and answer the questions that follow.
https://www.ted.com/talks/edith_widder_glowing_life_in_an_underwater_world/up-next
Edith Widder: Glowing life in an underwater world
1. On her first open-ocean dive in the Santa Barbara Channel, Widder says she dove down to 880 feet and turned off her lights. Explain why she did this and how she described what she saw?
2. If you happen to be on a ship and go to use the bathroom at night without turning on the light, why does Widder explain you might think you are having a “religious experience”?
3. Why are most people who are studying bioluminescence today focused mainly on the chemistry behind it? What does the Nobel Prize have to do with this?
4. What makes bioluminescence an important factor of survival for so many animals? Provide one example Widder gives to explain this.
5. Why is Widder dissatisfied with the way we explore the ocean? What are the two main ways we learn about what lives in the ocean that she describes?
6. How does Widder tell the difference between the species she observes in the deep ocean? Give an example of a species she identifies based on this observation.

Answer:

C.) FALSE- it contains all the gases

hope it is helpful to you

Answer:

The biosphere includes the outer region of the earth (the lithosphere) and the lower region of the atmosphere (the troposphere). It also includes the hydrosphere, the region of lakes, oceans, streams, ice and clouds comprising the earth's water resources.

Active transport is ATP dependent. Passive transport does not require energy.

Cells require some molecules to be transported across the membrane. Transported molecules can be a waste material or it can be a metabolic product. Membrane transport are of two types active and passive transport. Active transport uses energy from hydrolysis of ATP to transport molecules across membranes. Active transport moves molecules from regions of low concentration to regions of high concentration. Special membrane proteins perform active transport for example sodium potassium pumps. Passive transport does not require energy to transport molecules since it moves molecules from regions of high concentration to regions of low concentration. Passive transport is of two types: simple diffusion and facilitated diffusion.

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A final statement or concluding statement

In the dna isolation process, Meat Tenderizer is used to break down the protein complexes and allow the dna molecules to easily precipitate.

Deoxyribonucleic acid (DNA ) isolation is an extraction process of DNA from various sources. Methods used to isolate DNA are dependent on the source, age, and size of the sample. Despite the wide variety of methods used, there are some similarities among them. In general, they aim to separate DNA present in the nucleus of the cell from other cellular components.

Three steps are involved in DNA isolation:

1. Lysis: This is the mechanical breakdown of the cell during which the DNA is released from the nucleus. Enzymes and detergents like Proteinase K must be used throughout this process.

2- Precipitation: During this step, salt and alcohol are used to precipitate the DNA.

3. Purification: This step rids DNA of contaminants. DNA is extracted by being cleaned with ethanol and water.

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Negative Feedback occurs the the response serves to counteract the stimulus.

Answer:

Negative feedback is ur answer mate.

Answer:

A-Carrier Protein

B-Outside of the cell

Z-Glucose

Y-oxygen

X-Water inside the cell

Explanation:

No muscle contraction will be observed.

The concentration of calcium ions in the muscle cells help in contraction and relaxation of muscles fibers.

Release of calcium ions initiate muscle contraction.

Therefore, there will be no contraction of muscle if calcium ions are not transported out from the sarcoplasm.

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The glass ball was moved into the dark and there is more carbon in the water

The correct answer is B

In response, calcium carbonate, which really is not soluble in water so takes on a milky appearance, develops when CO2 is transported through lime water. The milkiness, however, disappears when too much CO2 is added to the solution. This results from the production of colourless, water-soluble calcium bicarbonate.

Photosynthesis requires sunlight since it supplies the residual energy that kickstarts the process. The light's energy sets off a chemical reaction which breaks down the water and carbon dioxide molecules and reorganises them to form glucose atnd oxygen gas.

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Biosafety  measure are misuse, theft , intentional release of pathogens and toxins.

The purpose to reduce the exposers of laboratory workers and other persons and to prevent escape into the outside environment of hazardous agents.

Biosafety protection is to protect laboratory workers, Clinical specimens and the environment .

Biosafety is done by implementing various degrees of laboratory control and containment,personal expertise and training,use of containment equipment, safe methods of managing infectious material in labs.  For biosafety the transportation of infectious biological must have a proper packaging , containment and appropriate transport procedures.

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Adenine, cytosine, guanine, and thymine are all nucleotide bases that are found in DNA (deoxyribonucleic acid).

They are often referred to as the "building blocks" of DNA. Here are some similarities among these bases:

They are nitrogenous bases: Adenine (A), cytosine (C), guanine (G), and thymine (T) are nitrogen-containing compounds that are essential for the structure and function of DNA.

They are involved in base pairing: Adenine forms hydrogen bonds with thymine, and cytosine forms hydrogen bonds with guanine. This base pairing is a fundamental characteristic of DNA, and it allows the double-stranded DNA molecule to maintain its structure and carry genetic information.

They are involved in DNA replication: During DNA replication, the existing DNA strands serve as templates for the synthesis of new DNA strands. Adenine pairs with thymine, and cytosine pairs with guanine, ensuring accurate replication of the genetic code.

They contribute to the genetic code: The sequence of these bases along the DNA molecule carries the genetic information that determines the traits and characteristics of an organism. The specific arrangement of adenine, cytosine, guanine, and thymine within the DNA molecule forms the genetic code that instructs the synthesis of proteins and regulates cellular processes.

It's worth noting that in RNA (ribonucleic acid), uracil (U) replaces thymine as a complementary base to adenine. However, the other three bases, cytosine, guanine, and adenine, remain the same in both DNA and RNA.

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Adenine, Cytosine, Guanine, and Thymine are all nucleotides that form the basis of DNA and RNA. They all participate in forming the genetic code that influences the characteristics of all living organisms.

Adenine, Cytosine, Guanine, and Thymine are all nucleotides, which are the primary building blocks of DNA and RNA. They are also known as bases in the context of genetics. Each of these nucleotides holds a specific place in the structure of DNA and RNA and they pair up in a specific manner - Adenine with Thymine and Cytosine with Guanine in DNA, whereas in RNA, Thymine is replaced by Uracil. Therefore, Adenine pairs with Uracil in RNA. While their structures and pairing partners vary, what is the same about them is that they all participate in the formation of the genetic code that governs the characteristics and functioning of all living organisms.

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A mutation in either the hormone or its receptor can lead to dysregulation of the physiological system by affecting the binding, signal transduction, activation, hormone production, or receptor sensitivity.

A mutation in either a hormone or its receptor can have various effects on the physiological system that it normally regulates. Here's how:
1. Altered Binding: A mutation in the hormone or receptor can affect their binding affinity, leading to reduced or enhanced interaction. This can result in a decrease or increase in the response of the physiological system.
2. Impaired Signal Transduction: Hormones bind to their receptors, triggering a signal transduction pathway that eventually leads to a physiological response. A mutation in the receptor can disrupt this pathway, impairing the transmission of signals and affecting the regulation of the system.
3. Abnormal Receptor Activation: Mutations in the receptor may lead to its constitutive activation, meaning it is continuously "on" even in the absence of the hormone. This can result in overstimulation of the physiological system, leading to dysregulation.
4. Altered Hormone Production: Mutations in the hormone gene can impact its production, resulting in decreased or increased hormone levels. This, in turn, can disrupt the normal functioning of the physiological system.
5. Change in Receptor Sensitivity: Mutations can alter the receptor's sensitivity to the hormone. It may become more or less responsive, affecting the magnitude of the physiological response.

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Answer:

Carbon

Explanation:

Is a cental element in compounds

Answer:

This question appears incomplete

Explanation:

This question appears incomplete. However, generally speaking, the higher the chloroplasts present in a plant, the higher the rate of photosynthesis that occurs in that plant. This is because chloroplasts are cellular organelles that serve as sites in which photosynthesis occur. They are found in green plants and green algae.

Photosynthesis is the process in which green plants produce there own food by absorbing sunlight from the atmosphere in the presence of carbon dioxide and water. Hence, it can also be said that an increase in the number of chloroplasts will lead to an increase in the amount of food produced by a plant (for itself).

From the description above, it can be said that the plant of a maple tree has a higher rate of photosynthesis and hence produced more food (for itself) than the leaf of a tomato plant.

Chloroplast also contain a green pigment called chlorophyll which is responsible for the green colour in green plants. Hence, an increase in the number of chloroplasts in a plant could indirectly imply greener plant. Hence, the plant of  a maple tree could have greener leaf than the leaf of the tomato plant.

Yes, because In 1997, El Niño had not spread as far across the equator in comparison to 2015. During an El Niño event, warm ocean waters accumulate in the central and eastern tropical Pacific, disrupting the normal atmospheric circulation patterns.

El Niño refers to a climatic occurrence marked by the increase in temperatures of the ocean's surface in the central and east areas of the tropical Pacific Ocean.  It has the potential to cause considerable changes in global weather phenomena.

The intensity and scope of El Niño occurrences differ annually. The year 2015 experienced a robust El Niño, which had significant and far-reaching impacts on weather systems around the world.

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Adherens Junctions are calcium dependent junction.

The correct option is (C) Adherens Junction

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Based on my observations, The Broadleaf forest change in the future if the Broadleaf forest continues to undergo succession without any further major disturbances, it might experience two possible changes succession then lead promoting biodiversity and ecosystem health.

Succession progresses, the overall species composition of the forest could shift. Initially dominated by pioneer species and fast-growing trees, the forest will gradually give way to more shade-tolerant, slower-growing tree species. These species can thrive in the shaded conditions created by the existing canopy and will replace the early colonizers over time, this change in species composition will also affect the associated plant, animal, and microbial communities, leading to increased biodiversity.

The forest's structure will likely become more complex as succession proceeds. Over time, the forest will develop a multilayered canopy consisting of various tree species at different heights, with an understory of shrubs and herbaceous plants, this complex structure will create a variety of microhabitats and niches, supporting a diverse range of organisms. The increased structural complexity will also enhance ecosystem processes such as nutrient cycling and carbon storage, contributing to the overall health and resilience of the Broadleaf forest. In summary, without any major disturbances, the Broadleaf forest's future succession could lead to a shift in species composition and an increase in structural complexity, promoting biodiversity and ecosystem health.

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The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.

Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.

Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.

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The principle reason that most of North America and Europe do not have difficulties with access to potable water is their wealth.

Consumable water, otherwise called drinking water, comes from surface and ground sources and is blessed to receive levels that that satisfy state and government guidelines for utilization.

Clean water is necessary for our cherished way of life: solid environments give natural life territory and spots to fish, oar, surf, and swim. Clean water is essential to our economy: To function and thrive, various economic sectors, including manufacturing.

Water that has been treated and tested to ensure its safety for human consumption is referred to as "potable water." This includes water from the tap, water from a bottle, water that has been filtered.

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Answer:

Avulsion.

Explanation:

Human bite wounds are blunt wounds, sometimes with partial or total avulsion (ear, lips, nose, hands) and with intense contamination. An avulsion is a complete tear of the skin and subcutaneous tissue. It does not allow the approximation of edges. It presents moderate to abundant hemorrhage and is accompanied by the exposure of underlying tissues (bone, tendon). The tear can be complete or partial; in the latter case, a connection or bridge is preserved between the torn tissue and the rest of the body.

Explanation:

It is actually beneficial to have unequal blood flow through the different organs of the body. This is because each organ has a different metabolic rate and nutrient requirement, and therefore requires a different amount of blood flow to function optimally. For example, the gastrointestinal tract and liver require a significant amount of blood flow in order to digest and absorb nutrients from food, while the kidneys require blood flow to filter waste products from the blood.

The unequal distribution of blood flow is largely regulated by the body's autonomic nervous system and hormones, which help to redirect blood flow to where it is needed most. During times of physical activity, for example, blood flow is redirected to the skeletal muscles, which require more oxygen and nutrients than they do at rest.

Thus, the unequal distribution of blood flow allows for efficient organ function and helps to meet the metabolic demands of the body as a whole.

Answer:

Due to the obvious refraction, the diver's head appears to be separated from his body. Absorption takes place when some of the colors are absorbed, causing the snorkel to appear yellow or greenish. The sun, sky, sound, and light are all reflected. The light entering the water is referred to as transmission.

Explanation:

Answer:

irreversible loss of brain neurons.

Explanation:

Answer:

if we don't sleep for a long times, it makes our brains cells difficult to communicate effectively which can lead to temporary mental lapses.

The long-term evolution experiment conducted by Dr. Richard Lenski in his lab at Michigan State University is a groundbreaking study that has been ongoing for nearly 30 years.

The experiment has focused on the evolution of E. coli bacteria and has revealed some fascinating insights into the mechanisms of evolution and adaptation. One of the most notable findings of the experiment is that the E. coli bacteria have evolved to become more efficient at utilizing their environment. This has been observed through the development of mutations that allow the bacteria to grow faster and consume nutrients more effectively. The experiment has demonstrated the power of natural selection in driving evolutionary changes over time. Another important finding of the long-term evolution experiment is that the evolution of the E. coli bacteria is not a purely random process. While mutations occur randomly, the selection of certain mutations is not random and is influenced by the environment in which the bacteria are growing. This indicates that environmental factors play a crucial role in shaping the course of evolution.

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The assumptions of the Hardy-Weinberg equilibrium model are infinite populations, random mating, no genetic drift, no gene flow, and no natural selection.

The correct options from the given choices are infinite populations and random mating. These assumptions are important for the Hardy-Weinberg equilibrium model to hold true. Infinite populations assume that there is no genetic drift or gene flow that could cause changes in allele frequencies over time.

Random mating assumes that individuals mate without regard to their genotype, which ensures that there is no bias in the transmission of alleles from generation to generation.

All genotypes having different fitness and mutation are not assumptions of the Hardy-Weinberg equilibrium model, as they can cause changes in allele frequencies and violate the equilibrium.

These assumptions allow us to predict the frequency of alleles and genotypes in a population over time and serve as a null model to test if natural selection, genetic drift, migration, or mutation is occurring in a population.

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Answer:

a. The factor changing among groups = The color of the light

b. The independent variable in this experiment = Color of light

c.  The quantity measured at the end of the experiment = The height of the plant

d. The dependent variable is the height to which the plants grow

e. The control group is the Plant Group C, because they are subjected to normal light

f. The parts of the experiment kept constant are;

Temp

Humidity

Water Daily

Daily Light Exposure

g. The amount of nutrient available and atmospheric gases

h. The growth rate of plant is dependent on the color of the light in which the plant grows

Explanation:

The observation that fails to support the endosymbiotic theory for the origin of eukaryotic cells is: C) the existence of size differences between some prokaryotic cells and mitochondria.

The endosymbiotic theory is a scientific theory that explains the origin of eukaryotic cells from prokaryotic cells. According to this theory, eukaryotic cells evolved from prokaryotic cells that formed a symbiotic relationship with one another, with one cell living inside the other. The larger cell provided the smaller cell with protection and nutrients, while the smaller cell provided the larger cell with energy through the process of photosynthesis or cellular respiration.Mitochondria and chloroplasts, two organelles found in eukaryotic cells, are believed to have evolved from free-living prokaryotes that were taken up by other cells through endocytosis.

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Answer:

carbon atoms

Explanation:

all organic molecules have carbon.

Answer:

Macronutrients

- Proteins

- Carbohydrates

- Fats

Micronutrients

- Calcium

- Vitamins

- Zinc

Explanation:

Got it right on my test. Have a good day!

Carbohydrates, proteins, and fats are the macronutrients, whereas vitamins, calcium, and zinc are the micronutrients.

Macronutrients and micronutrients are two very essential nutrients that are required for the growth and development of the body. Macronutrients are nutrients required in large quantities in the body for its growth and development, and to perform various other body functions. Carbohydrates, proteins, and fats are the three main macronutrients found.

Carbohydrates are building blocks of monosaccharides and provide energy to the body whereas proteins are building blocks of amino acids and are required to build and repair tissues in the body. Fats are also the building blocks of fatty acids and are important for protecting organs and providing energy too.

Micronutrients, on the other hand, are nutrients required in smaller amounts, and are essential part of the body. Micronutrients include vitamins and minerals such as calcium, iron, and zinc.

Therefore, carbohydrates, proteins, and fats are the macronutrients, whereas vitamins, calcium, and zinc are the micronutrients.

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Nervous and hormonal mechanisms are two distinct systems involved in control and coordination in animals, with the nervous system relying on electrical impulses for rapid signaling, while the hormonal system employs chemical messengers for slower, widespread communication.

Nervous signals travel through nerve fibers at high speeds, enabling quick responses to stimuli. The central nervous system (CNS), comprising the brain and spinal cord, integrates information and generates appropriate responses, while the peripheral nervous system (PNS) connects the CNS to sensory organs, muscles, and glands.

Hormonal Mechanism: The hormonal system, also known as the endocrine system, utilizes chemical messengers called hormones for communication. Hormones are released by specialized glands into the bloodstream and carried to target cells throughout the body.

Hormonal signaling is relatively slower compared to nervous signaling, as it requires time for hormones to be produced, released, and transported through the bloodstream to reach their target cells. However, the effects of hormones can be long-lasting and more widespread.

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Answer:

Photosynethesis

Explanation: