Would a low calcium diet influence the contraction of a muscle?


1) No since sodium is the ion that takes the message into the cell. Calcium is only

important for going into the neuron to cause the release of ACH.

2) No since sodium is the ion that takes the message into the cell. Calcium is not used in the process of muscle contraction.

3) Yes since calcium is needed to uncover the active site on actin so that the cross bridges can form and start the sliding process.


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The use of radon studies will help the scientists to get an idea about many scientific ideas. The purpose of studying radon pollution levels is to improve air quality and human health. Correct answer is option B.

The level of harmful substances on environment that are causing adverse effects on atmosphere dealing with the harmful effects and their side effects.

To improve air quality and human health the studies of radon to pollution levels will help to study about the air quality and the human health.

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The banks should be filled as follows:

3. Negative feedback is a control system that helps the body maintain homeostasis by sending a signal to stop a response.

4. Negative feedback is the type of control system in effect when you feel hungry and eat.

5. Positive feedback is a control system that sends a signal to increase a response.

6. Childbirth is another example of positive feedback.

Generally speaking, there are two (2) main types of feedback loop and these include the following:

A negative feedback loop inhibits or decreases the response by the body system of a living organism. Additionally, an example of a receptor in a negative feedback loop that controls the body temperature of a living organism is temperature sensors that are located on the skin, in order to detect a stimulus.

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Option B energy is released when bond in ATP are broken and stored in sugar when bond forms.

The mild unbiased process takes location withinside the stroma of the chloroplast. Carbon dioxide is changed via way of means of collection of chemical reactions to shape carbohydrates.

The power for those reactions comes from ATP and NADPH generated for the duration of the mild structured process.

Energy from ATP and NADPH lessen the 3PG molecules to shape every other three carbon compound, glyceraldehyde-three-phosphate (G3P). Two G3P molecules are eliminated from the cycle and in the long run come to be one glucose molecule.

The different 10 molecules of G3P are transformed again to RuBP molecules, prepared to simply accept CO2 and begin the cycle again.

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The description of each plant should be matched with the group to which the plant belongs as follows:

In Science, a nonvascular plant can be defined as a species of low-growing, non-flowering plant that lacks specialized conducting channels, deep roots, or vascular tissues (xylem and phloem) for the transportation of nutrients and absorption of water.

Additionally, some examples of cone-bearing plants (gymnosperms) include the following:

In conclusion, gymnosperms are also referred to as cone-bearing plants and they primarily produce male cones and female cones on the same plant in order to enable them house seeds.

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Complete Question:

Drag the tiles to the correct boxes to complete the pairs. Match the description of each plant with the group to which the plant belongs.

a vascular plant that produces cones to house seeds.

a vascular plant that does not produce seeds

a short, nonvascular plant

a flowering vascular plant that that contain rhizoids produces fruit around seeds

angiosperm

bryophyte

pteridophyte

Gymnosperm

Co-dominance describes the relationship displayed by the

large and small spot alleles.

In genetics, codominance refers to a type of inheritance in which two versions (alleles) of the same gene are expressed separately to produce different traits in an individual. In genetics, codominance refers to a type of inheritance in which two versions (alleles) of the same gene are expressed separately to produce different traits in an individual.

When both alleles show dominance, as in the case of the AB blood type (IA IB in humans), codominance occurs. A trait caused by an allele that is expressed independently and equally with the other. Blood type is an example of a codominant trait; a person with blood type AB has one allele for blood type A and another for blood type B.

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Answer:

For every organism where mitochondria act as a powerhouse of a cell, ATP that is Adenosine Tri Phosphate is produced during aerobic respiration (i.e respiration that takes place in presence of oxygen). Cyanide interrupts this chain thus ATP production staggers which will further weaken the mitochondria and will bring metabolic reactions to an end.

Cyanide is a deadly poison that can disperse itself so fast that it can dispense throughout the body in a matter of seconds as it prevents the cell from the usage of oxygen.

Cyanide is a deadly poison that can disperse itself so fast that it can dispense throughout the body in a matter of seconds as it prevents the cell from the usage of oxygen.

what are cyanides?

Cyanides are fast-acting poisons that can be lethal. They were used as chemical weapons for the first time in World War I. Low levels of cyanides are found in nature and in products we commonly eat and use. Cyanides can be produced by certain bacteria, fungi and algae. Cyanides are also found in cigarette smoke, in vehicle exhaust, and in foods such as spinach, bamboo shoots, almonds, lima beans, fruit pits and tapioca.

Moving away from the point of exposure to fresh air is an important first step in treating cyanide exposure. Cyanide poisoning can be further treated by medical professionals. Often patients are given oxygen.

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The information which describes how systems interact with each other when a bat hunts include the following below:

A)The bat′s nervous system tells the bat where its prey is located.

D)The bat can use its skeletal system to produce sounds and locate prey.

This is the type of system which comprises of bones, cartilages etc and is majorly involved in the movement of parts of the body such as the legs, hands etc. This system is also responsible for performing daily activities such as searching for food.

According to the information provided in which we were told how a bat hunts, it uses the skeletal system to produce sounds and locate its prey while the nervous system tells the bat where its prey is located through stimuli.

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Scientific knowledge is a body of trustworthy new information about the world that has been gathered via experimentation and data collection.

Two points in the definition of science need to be emphasised. Science is a body of knowledge, first and foremost. It is a method by which knowledge is created, according to the second point. Therefore, a collection of trustworthy new information about the world that has been discovered through experimentation and data collection can be referred to as scientific knowledge.

All of the scientific knowledge we have is a result of our own observations. Because humans are inherently fascinated about many things in the physical world, we try to look into them and discover solutions. The process of organising and evaluating gathered data to potentially explain a phenomenon is known as scientific research. It is carried out precisely and repeatedly in order for empirical data to demonstrate the veracity of the outcomes.

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Answer:

b) Fungi

Explanation:

Fungi such as Trichophyton rubrum is most likely to infect a human on the skin and under fingernails or toenails. Therefore, the option (b) is the correct answer.

Answer:

The real answer is Fungi.

Answer: GAT-CTT-ATC-GGT-GTA-TGC-TAA-CTC-ATA

Explanation: I just did it backwards maybe that will help

Answer:

In principle, the lysosomes are the responsible for accumulating of hydrolytic enzymes, so if the drug did not prevent the formation of lysosomes, the accumulation of hydrolytic enzymes would be in charge of the lysosomes.

But in the statement it says that the drug with which the cell is being treated prevents the formation of lysosomes, and in this case, the organelle that is most likely to perform the function of accumulating hydrolytic enzymes is the golgi apparatus.

Explanation:

It occurs in NUCLEUS

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Answer:

C. Wrinkled seeds are recessive.

Explanation:

During F1, one dominant and one recessive allele for a gene resulted in the dominant phenotype.

F2 resulted in a homozygous recessive, which refers to the genotype of an organism with two recessive alleles.

Answer:

c) Wrinkled seeds are recessive.

Explanation:

In Mendel's experiment, wrinkled seeds show up in F2 generation, even though they were not present in F₁ generation because Wrinkled seeds are recessive.

Mendel proved that 25% of the F2 generation is recessive and it cannot be seen in the F1 generation. Therefore, the option (c) is correct answer.

Answer:

it's  an ambitious research effort aimed at deciphering the chemical makeup of the entire human genetic code

Explanation:

purpose : to accurately sequence the 3 billion nucleotide base pairs in the human genome. A second goal was to map and identify all of the human genes present in the DNA sequence.

ORRR

1.Optimization of the data analysis. 

2.Sequencing the entire genome. 

3.Identification of the complete human genome.

One of the greatest scientific achievements in history is the Human Genome Project. An international team of scientists undertook the project as a biological odyssey to thoroughly examine the entire DNA (also known as a genome) of a particular group of organisms.

What is Human Genome Project?

Facts of human genome project:

Hence this is all about Human genome project.

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Answer:

Humans can't live off sunlight (among other reasons)because we don't have chlorophyll in our bodies. Chlorophyll takes the sun's energy and converts it into useable energy for plants to use. Adding energy to anything is not beneficial unless there is a mechanism to convert that energy into a useful form.

Science cannot answer questions about what people should do. best describes the limits of science.

What is science?
Some of the earliest archaeological evidence for scientific reasoning seems to be tens of thousands of years old, and science may be as old as the human species. In the period between 3000 and 1200 BCE, Mesopotamia and Ancient Egypt produced the earliest written records inside the history of science. Greek natural philosophy of classical antiquity, where formal attempts were made and provide explanations of events inside the physical world based on natural causes, was influenced by their contributions to mathematics, astronomy, as well as medicine. The knowledge of Greek worldviews declined in Western Europe during the early Middle Ages (400–1000 CE) following the fall of the Western Roman Empire, but it was preserved in the Muslim world during the Islamic Golden Age as well as later by attempts of Byzantine Greek scholars who brought Greek manuscripts from the waning Byzantine Empire to Western Europe in the Renaissance.

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Answer:

a) Grass

Explanation:

Grass is the producer from the above flowchart, other all are consumers. Hence, the option (a) is the correct answer.

Answer:

1. Endangered species

2. Threatened species

3. Generalist species Ex: raccoon and American crows

4. Specialist species Ex: Tiger Salamanders

5. Endemic species

No explanation, your question is the explaination.

Bottom level sets the stage for the overall productivity of an ecological energy pyramid.

A graphical representation of the biomass or bioproductivity at each trophic level in a given ecosystem is known as an ecological pyramid. An energy pyramid, also known as a trophic or ecological pyramid, is a graphical representation of the energy contained within an ecosystem's trophic levels. The producers are at the bottom and largest level of the pyramid, and they contain the most energy.

Environmental pyramids are useful because they graphically depict the relationship between producers and consumers. To calculate energy, content, biomass, or population, the organism at that trophic level must be estimated. A trophic level, as opposed to a species, denotes a functional level.

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Option A. Since the process of photosynthesis makes new energy, the combined energy in the bonds of O₂ and C₆H₁₂O₆ is greater than that in the bonds of CO₂ and H₂O.

In plants, carbon dioxide enters the indoors of a leaf thru pores referred to as stomata and diffuses into the stroma of the chloroplast—the web page of the Calvin cycle reactions, in which sugar is synthesized. These reactions also are referred to as the mild-independent reactions due to the fact they may be now no longer immediately pushed via way of means of mild.

In the Calvin cycle, carbon atoms from are fixed (included into natural molecules) and used to construct three-carbon sugars. This method is fueled via way of means of, and based on, ATP and NADPH from the mild reactions. Unlike the mild reactions, which take location withinside the thylakoid membrane, the reactions of the Calvin cycle take location withinside the stroma (the internal area of chloroplasts).

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As per the statement energy and matter interacts in ecosystem in following manner.

Energy flows across an ecosystem, while matter cycles within it. Let's take a closer look at how various living activities influence the movement of energy and matter in ecosystems to better understand why this is the case.

Matter is the material substance that constitutes the observable universe and, together with energy, forms the basis of all objective phenomena. Energy, in physics, is the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms.

When producers engage in photosynthesis, they draw energy from the sun and store it as chemical potential energy, which is how energy enters an ecosystem. During this procedure, environmental debris (in the form ofO2 Organic molecules are formed by ingesting O) and rearranging it (sugars). These organic molecules can either be stored as biomass or used to power the producers' biological functions through cellular respiration, which produces heat and gases.

Decomposers receive matter and energy from dead producers, consumers, and the waste they make. Matter is converted back into inorganic forms by decomposers so that it can be recycled in the ecosystem.

So, the energy that comes from sunlight entering an ecosystem eventually leaves the ecosystem as heat. As atoms are mixed and recombined in various ways, on the other hand, the matter in an ecosystem is continuously renewed.

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Examples of positive and beneficial mutation:

Examples of negative and harmful mutation

Examples of neutral mutation;

Mutations are results from change in gene structures that leads to variations in form that can be transferred or passed down to generations. This is usually caused by alterations in the single base unit of DNAs by insertion, deletion or rearrangement of genes or chromosomes.

Positive and beneficial mutations result in retained from of adaptation like antibiotic resistance by bacteria, harmful mutation causes harm such as cancer, while neutral has little or no effect example, silent mutations.

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Answer:

short answer:

the process by which food, in the form of sugar (glucose), is transformed into energy within cells

Long answer:

the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and

discarding, as waste products, carbon dioxide and water

Answer:

Siphon

Explanation:

The siphon propels the squid through the water in the opposite direction to which the siphon is pointing, much like jet propulsion.

Answer: cell wall

Explanation:

The step of “Gather Background Information.” is very important in the scientific method because with the help of this information we can make a hypothesis.

The scientific method is defined as the process of finding the facts with the help of testing and experimentation. The main process involves making an observation, then formulating a hypothesis, making a prediction, conducting an experiment, and then analyzing the results. The first step of the scientific method is asking a question. The second step is to Perform research. The third step is to Establish your hypothesis. Then test your hypothesis through experimentation. Analyze the results and conclusions.

So we can conclude that this step is very important because it helps to make a hypothesis.

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