How natural selection works and how it relates to evolution?

Vanessa has a better absolute threshold and more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.

Carlton and Vanessa were lab partners for a biology class and were asked to run a smell test experiment on each other.

Vanessa was excellent at noticing the difference between various intensities of vanilla and evergreen.

Carlton, on the other hand, couldn't distinguish the difference in the intensities of both vanilla and evergreen, though he could tell the smells of both.

Hence, based on the information provided in the scenario, it can be inferred that Vanessa has a more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.

The two significant aspects that are involved in the scenario are absolute threshold and difference threshold.

The absolute threshold is the smallest quantity of a stimulus that an individual can detect, whereas the difference threshold is the minimum difference in stimuli that an individual can detect.

Carlton could recognize the stimuli's smell but not the difference in the intensity of vanilla and evergreen.

This shows that Carlton has an impaired absolute threshold.

He could not detect the smallest quantity of a stimulus to differentiate between the smells.

Vanessa was quite good at noticing the difference in the intensities of vanilla and evergreen.

This means that Vanessa has a more sensitive difference threshold than Carlton. She could detect the minimum difference in stimuli required to differentiate between smells.

Vanessa also has a better absolute threshold than Carlton as she could detect the smallest quantity of stimulus required to detect the smells.

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Answer:

D. they have some of the same matter.

Answer:

Explanation:

A volcanic eruption can affect each of Earth's four major systems in the following ways:

Geosphere: Volcanic eruptions can alter the physical landscape of an area by depositing ash, lava, and other materials on the ground. This can create new landforms, such as mountains, and alter existing ones. The eruption can also release gases and chemicals into the air that can have a long-lasting impact on the soil and water quality.

Atmosphere: Volcanic eruptions release gases, such as carbon dioxide, sulfur dioxide, and water vapor, into the atmosphere. These gases can cause air pollution, acid rain, and climate change. The ash and dust from an eruption can also affect the air quality, reducing visibility and posing a health hazard to humans and animals.

Hydrosphere: Volcanic eruptions can affect the water cycle by altering the amount and quality of water in the surrounding area. The ash and debris from an eruption can contaminate rivers, lakes, and other bodies of water, making them unsuitable for drinking or irrigation. The heat from an eruption can also cause water to evaporate, leading to drought conditions.

Biosphere: Volcanic eruptions can have a significant impact on the plants and animals that live in the surrounding area. The ash and debris from an eruption can destroy habitats, disrupt food chains, and cause widespread death and disease. The gases and chemicals released during an eruption can also be harmful to both plant and animal life.

In summary, a volcanic eruption can affect the geosphere, atmosphere, hydrosphere, and biosphere of an area. The impacts can be long-lasting and far-reaching, affecting not just the physical landscape, but also the climate, water cycle, and living organisms of the region.

The correct answer is ATP releases energy as a phosphate bond is broken.

ATP (adenosine triphosphate) is converted into ADP (adenosine diphosphate) when a phosphate group is removed from ATP, resulting in the release of energy. This process is known as hydrolysis, where water molecules are used to break the bond between the terminal phosphate group and the rest of the molecule.

During cellular metabolism, ATP serves as the primary energy currency of the cell. When energy is required for various cellular processes, the phosphate bond in ATP is broken by an enzyme called ATPase. This enzymatic hydrolysis reaction cleaves off one of the phosphate groups, resulting in the formation of ADP and an inorganic phosphate molecule (Pi). The released phosphate group is then available to be used in other cellular reactions.

The conversion of ATP to ADP is an essential part of energy metabolism in cells. The energy released during this process is utilized to drive various cellular activities, such as muscle contraction, active transport of molecules across cell membranes, and synthesis of macromolecules. Once ATP is converted to ADP, it can be further hydrolyzed to AMP (adenosine monophosphate) if more energy is needed. Ultimately, the energy stored in ATP is released when the phosphate bond is broken, allowing cells to perform their vital functions.

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Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.

A mutualism occurs when two species have a long-term relationship that benefits both of them (+/+ interaction). Some fungi, for example, create mutualistic relationships with plant roots. The plant may photosynthesize and gives fixed carbon to the fungus in the form of sugars and other organic compounds.

The presence of several species in an ecosystem balances it. The species in an ecosystem interact with one another in some way. For example, the existence of a plant species will offer food for the numerous herbivores found in an ecosystem. A predator may consume a variety of prey. As a result, the existence of diverse prey reduces the likelihood of a species becoming extinct in the ecosystem. As a result, all creatures in an ecosystem are dependent on one another in some way.

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False - Permeable rocks cause slow runoff. This can create a variety of landforms, such as bars and islands, in the stream, creating diverse habitats for aquatic species.

Explain what is meant by a meandering stream?

A meandering stream is one that follows a winding course, with bends and curves across the landscape. This type of stream is created by erosional forces that move the stream sideways, resulting in the formation of meanders. The water in the stream can move quickly in some areas, and slowly in others, creating areas of high and low energy, leading to different types of erosion and deposition.

Meandering streams are a natural feature of many landscapes, and the curves of the stream can have a significant influence on the shape of the landscape. The curves of the stream can cause the formation of oxbow lakes, backwater channels, and other features. Meandering streams also tend to create habitats that are suitable for a variety of aquatic species.

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Answer: Four

Explanation:

The leucine-enkephalin binds to the opioid receptors they function as important signaling molecules in the brain. There are four peptide bonds present in them. These are endogenous ligands which act as neurotransmitters and they have morphine like activity that is they suppress the brain pain receptors and depress the central nervous system and provide relief in pain.

For the word problem, If the difference of a number and the fraction \(\frac{4}{3}\) is \(\frac{11}{3}\), then the number is 5.

The above mathematical problem is a word problem. Word problems are problems that are written in words, rather than in symbols.

To solve for the difference or mystery number, we say, Let x be the number.

The problem states that x -  \(\frac{4}{3}\) =  \(\frac{11}{3}\),

movin -  \(\frac{4}{3}\) to the other side of the equation,

we get x = \(\frac{11}{3}\) + \(\frac{4}{3}\) = \(\frac{15}{3}\)

We solve the fraction by dividing 15 by 3

\(\frac{15}{3}\) = 5

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The numbers in citations refers to a source which is referred to in the text.

Citations are added in research articles, manuscripts, chapters of journals or books to refer to an original source for the mentioned text, image or information table.

The numbers in citations are written in superscript form and in Arabic numerals. These numbers are written inside a square bracket or curved bracket.

The number in the citation indicates which reference or source is to be referred from the bibliography for that particular sentence or paragraph.

For instance, ⁽¹⁾ indicates refer to the first source mentioned in the bibliography for this part of the text.

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Answer:  The most gas in the atmosphere is nitrogen, with oxygen second. Argon, an inert gas, is the third most abundant gas in the atmosphere.

Where are most gases found in the atmosphere?

Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.

(Please give brainiest :) I'm trying to reach my goal)  Hope this helped :)

Explanation:

Answer:

Nucleus: directs all of the cells activities

=~

Explanation:

I took the exam and its correct!! I take FLVS this is the 4.00 Pretest or 4.01 for science right? Any who I got it right so go get em babes!!

Answer:

You didn't upload the model, so we cannot answer this question.

Explanation:

I am unsure if this is the correct question, but this is what I think is the full question:

An atom of an element is shown by the model.

How is this model useful?

O It shows how electrons are distributed in the shells of an iron atom.

O It shows how electrons are distributed in the shells of a cobalt atom.

O It shows how orbitals are distributed in the shells of an iron atom.

O It shows how orbitals are distributed in the shells of a cobalt atom.

The answer to this question is It shows how electrons are distributed in the shells of an iron atom (1st option).

The picture below is the model.

Answer:

The correct answer is - 5.

Explanation:

The percentage of the error in any experiment can be calculated by the ratio difference between the target value and the observed value over the target value into 100.

Percentage error =  {|Vtrue - Vobserved|/Vtrue}× 100

Solution:

percentage error = (5.6/112)*100

= 0.05*100

= 5

Thus, the correct answer is - 5.

Answer:

3 Hydrogen bonds

Explanation:

Cytosine and guanine pairing can be found in both DNA and DNA-RNA hybrid formed during replication and transcription. The two nitrogenous bases are held together by three hydrogen bonds.

Answer:

negative and strong

Explanation:

the line is going down, and all the points are pretty close together

Answer:

the duty of each of the professionals are:

Explanation:

1)junior technician of plants science

=to research about plants and give information to all the world

2)ranger

=to protect a forest or a certain place

3)forester

=to keep an eye on the forest and keep forest safe

4)jt of food and dairy products

=to research for food and give information about things related

The steps used for creating a genetic fingerprint in the correct order include the following and is denoted as option B.

These are referred to as the impressions in the form of ridges which are present on the finger. Each individual has his/her unique fingerprint and DNA present for identification.

DNA which is referred to as deoxyribonucleic acid contains genetic instructions and are separated , extracted and then hybridized so as to enable the identification of the specific DNA sequences through the use of substances such as enzymes etc.

This is therefore the reason why option B was chosen as the most appropriate choice.

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Answer: Serparation, extraction, digestion, development, hybridization

Explanation:

When a black cat (BB) mates with a gray cat (BW), the chance the offspring will be white is 0% (zero).

Genotype may be defined as the ultimate combination of alleles of those genes which are selected for specific studies.

When a black cat (BB) mates with a gray cat (BW), it produces offspring with the genotypes BB, BW, BB, and BW. None of them are WW (white).

The Punnett square of the given cross is illustrated below:

Therefore, it is well described above.

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They would all have one cell with smaller parts that do different jobs within the cell.

Answer:

people are caring there own utensils or a wooden spork and avoid using plastic utensils. Review restaurants and cafes and recognize them when they avoid straws and plastic packaging – and let them know you want them to do better when they don't. Use reusable water bottles, coffee mugs, and bags.

Explanation:

Answer:

increase single use items

Explanation:

it means less productits to be use it is better for the earth and humans.

Answer and Explanation:

FALSE

Personal boats and watercraft DO contribute to ocean pollution.

Most water vehicles need fuel to be powered and go through the water. This fuel can sometimes go into the water, polluting the surrounding area.

Watercraft that don't use fuel, but instead are man-powered, can still contribute to ocean pollution. People can bring items such as soda cans, beer bottles, fishing equipment, etc., and any of these items tend to be discarded into the water, leading to pollution and degradation of the ecosystem, harming any wildlife that lives there.

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The lysogenic cycle involves the spread of viral DNA when prokaryotic microorganisms reproduce and the lytic cycle destroys the host cell immediately.

The lytic cycle is a type of reproductive cycle in viruses that involve the destruction of the host cells.

Conversely, the lysogenic cycle occurs only in prokaryotic cells and it does not involve the destruction of these cells.

In conclusion, the lysogenic cycle uses prokaryotic reproduction and the lytic cycle destroys the host cell.

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Answer:

Explanation:

In philosophy of mind and cognitive science, folk psychology, or commonsense psychology, is a human capacity to explain and predict the behavior and mental state of other people.

Answer:

c

Explanation:

i did this one two

Answer:

c

Explanation:

The bird will get 10 kcals of energy

A description of the compost bin that can be used for this experiment is that the bin is a rectangle-shaped container that is made of wood. This container is 150 cm wide and 30 cm deep. It can hold up decaying materials for up to one month.

The compost can be used to store decaying materials that will be used in a nearby farm for manure. Composting is the act of storing up decomposable materials that remain in a container until they are ready for use.

The compost so obtained can be used to improve the fertility of the soil where crops will be planted.

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Answer:

2/4 A and 2/4 O

Explanation:

The order of the molecules from lowest to highest ability to pass through a phospholipid bilayer is: molecular oxygen, water, a sodium ion, glucose.

The ability of molecules to pass through a phospholipid bilayer depends on their size, polarity, and charge. Here's the order from lowest to highest ability to pass through a phospholipid bilayer:

1. Molecular oxygen (O2) - small and nonpolar, can easily pass through.
2. Water (H2O) - small and polar, can pass through but slower than molecular oxygen.
3. A sodium ion (Na+) - small but charged, has difficulty passing through without help from channels or transporters.
4. Glucose - large and polar, has the lowest ability to pass through without help from specific transport proteins.

So, the correct order is: molecular oxygen, water, a sodium ion, glucose.

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