Which statement BEST describes how mutations are related to evolution?
There is not a strong relationship between mutations and evolution
Natural selection causes evolution, which causes more mutations to appear
in the DNA of the species.
Mutations are changes in DNA that produce weaker organisms that die, so
these are eliminated by evolution.
Mutations lead to new genes, which may have an advantage over the old
forms, causing the species to evolve

Answer:

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Explanation:

Answer:

it was a land plant!!

Explanation:

The paleontologist can conclude that the plant fossil was a land plant (option A), as the presence of vascular structures is a defining characteristic of land plants.

Vascular tissues are specialized tissues found in the vast majority of land plants that transport water and nutrients throughout the plant body. They consist of two types of tissues: xylem and phloem. Xylem transports water and dissolved minerals from the roots to the leaves and other parts of the plant, while phloem transports sugars and other nutrients produced in the leaves during photosynthesis to other parts of the plant.

Hence, the paleontologist can conclude that the plant fossil was a land plant (option A), as the presence of vascular structures is a defining characteristic of land plants.

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During anaerobic respiration, glucose is converted into ATP. The correct option is B.

Anaerobic respiration happens in those organisms that do not require oxygen or don't get oxygen. Anaerobic respiration also occurs when there is a scarcity of oxygen.

Anaerobic respiration also broke down food and produces energy, but the energy produced by respiration is way less than aerobic respiration, it is just 2 ATP.

Thus, the correct option is B. glucose to be converted into ATP.

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Answer:

The answer is C. white blood cells

Explanation:

Hope this helps :)

Answer:

  B. Straight away from the source

Explanation:

In an isotropic medium, light always travels in a straight line away from the source.

Answer:

B. Straight away from the source.

Explanation:

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The greatest biodiversity is found in ecosystems with a wide variety of living things. This means having a diverse range of species and genetic differences among them.

The ecosystem with the greatest biodiversity is the one that has the greatest variety of living things (Option A). Biodiversity refers to the variety of life found in a particular ecosystem or across the entire planet. It includes the number of different species, the genetic diversity within and between these species, and the range of habitats and ecosystems. The more variety of different species and genetic differences, the higher the biodiversity. This is crucial for the health of the ecosystem, as each species fills a different ecological niche and contributes to the system's overall resilience.

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Answer:

One parent or two? That is the main difference between sexual and asexual reproduction. Sexual reproduction just means combining genetic material from two parents. Asexual reproduction produces offspring genetically identical to the one parent.

Explanation:

Answer: elevation,  landforms , relief

Explanation:

Area's topography can be defined as the physical features with which the area of the land is associated with. These features are mountains, lakes, valleys and rivers.

The following are the elements of the parts of the area's topography:

Elevation: The elevation describes the height above the given level. This can be used to measure the height of the mountain.

Landforms: Landforms are the features of the Earth's surface that includes the parts like hills, plains and mountains.

Relief: A relief gives an idea of elevation from the concerned point in a landform.

Answer:

elevation,  land forms , relief

Explanation:

hope it helps you out

Answer:

The ice becomes freshwater.

Explanation:

As many would know, most of freshwater on earth (about 68.7%) is kept in glaciers and icecaps. This tells us that the ice frozen in icecaps are freshwater.

Final answer:

The exclusion of salts from forming sea ice increases the density of the water, causing the cold, salty water to sink to the ocean bottom, contributing to downwelling.

Explanation:

When water in the polar areas begins to freeze, the salts in the water are squeezed out and increase the salinity of the liquid water beneath the ice layer. This process increases the density of the water, causing it to sink. Such an increase in salinity and decrease in temperature makes this water denser than the surrounding water. As a result, the cold, salty water sinks to the bottom of the ocean in a process known as downwelling. This is crucial in ocean circulation because it helps to distribute nutrients and energy around the globe.

Answer:

D

Explanation:

Just did on a quiz and got it right

Answer:

Explanation:

“Higher levels of carbon dioxide in the atmosphere will have no effect” is not a current theory regarding global climate change.

 Global warming refers to the recent and ongoing rise in global average temperature near Earth's surface. It is caused mostly by increasing concentrations of greenhouse gases in the atmosphere. Global warming is causing climate patterns to change

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

Answer:

C.) Higher levels of carbon dioxide in the atmosphere will have no effect.

Explanation:

Edge

Answer:

T

Explanation:

Increased energy efficiency ultimately leads to lower costs. The given statement is true.

Energy conversion efficiency or energy efficiency (η) is the ratio between the useful output of an energy conversion machine and the input of energy. The input, as well as the output may be chemical, electric power, mechanical work, light or radiation, or heat energy. The resulting value (η), ranges between the value of 0 and 1.

Energy conversion efficiency depends on the usefulness of the output of the machine. All or a part of the heat which is produced from burning a fuel may become rejected waste heat if, for example, the work is the desired output from a thermodynamic cycle. Energy converter machine is an example of an energy transformation. For example, a light bulb falls into the categories energy converter and the energy efficiency can be calculated as:

η = Pout/ Pin

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Answer:

Compact tissue I think

Explanation:

Final answer:

The spongy tissue of the bones is the most likely cause of a condition that results in weak and easily broken bones, such as osteoporosis, which makes the bone tissue brittle, thin, and prone to breakage.

Explanation:

A person with a condition that makes their bones weak and easily broken likely has an issue with the spongy tissue of their bones. Compact bone tissue forms the hard external layer of all bones and consists of osteons, which makes it strong and durable. Spongy bone tissue, on the other hand, forms the inner layer of all bones and consists of trabeculae. It is found in areas of bones that are not heavily stressed or at which stresses arrive from many directions. Spongy bone is less dense and more porous than compact bone, making it susceptible to conditions like osteoporosis, where the bone tissue becomes brittle, thin, and spongy. These fragile bones can break easily, and they start to crumble and collapse, making spongy bone the most likely part to cause conditions associated with weak and easily broken bones.

It will increase the supply of electricity from alternative sources. (Option C).

Investing in solar energy panels increases the supply of electricity from alternative and renewable sources. Solar energy is a clean and sustainable energy source that does not deplete finite resources like fossil fuels (coal, oil, natural gas).

By increasing the supply of electricity from alternative sources like solar power, a state can reduce its reliance on fossil fuels and slow down resource depletion. This reduces the environmental impact and dependence on non-renewable resources, contributing to a more sustainable energy future.

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Soil is typically comprised of a mixture of materials including inorganic mineral matter, organic matter, and water/air. Therefore, Jack's conclusion that the soil was made up of several different materials, each with a different weight, is likely more accurate than Mark's conclusion that the soil was made up of one type of material.

Based on the information you've provided, it is likely that Jack's conclusion is more accurate. Soil is comprised of a variety of different types of materials. These materials usually include inorganic mineral matter, organic matter, and water and air. Additionally, different types of soil particles such as sand, silt, and clay, contribute to the overall composition of the soil. Given these facts, soils are rarely composed of just one type of material. Therefore, Jack's observation that the soil sample contained a variety of materials, each with a different weight, is likely more accurate.

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The statement explains the most common relationship between sleep deficiency and substance abuse is that it can lead one to use stimulants. Thus, option C is correct.

The medicine that has been used to become more active than normal life and the term stimulants has been overarching term which has been the covers of the several drugs that include that has been increased activity of the nervous system present in the center.

Analgesia has been known as an analgesic drug which has been used as the pain reliever or it has been also known as the painkiller. The group of the drugs that has been used to the relief severe pain has been known as the analgesia. The side effects of analgesia that has the long term use of the analgesia can cause damage to lever and kidney.

There are several conditions in which has the analgesia are analgesic are given and these are after the the surgery, if the someone gets injured in the case of pain and it has been also given in the case severe headache. The menstrual pain can also be relifed by taking analgesia.

Therefore, The statement explains the most common relationship between sleep deficiency and substance abuse is that it can lead one to use stimulants. Thus, option C is correct.

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Answer:

Laboratory apparatus are the tools required to complete lab work, including test tubes, pipettes, beakers, and graduated cylinders.

Explanation:

The laboratory apparatus depends upon the type of laboratory you are in and the experiment you are going to perform.

For example, if you are in a chemistry laboratory, the common apparatus you need to use are:

Test tube holders, tongs - for holding test tubes and beakers that should not or cannot be touched.

Test tubes - for holding small samples or for containing small-scale reactions.

Test tube stands - for keeping a few test tubes upright

Droppers - for adding a very small amount of liquid, drop by drop

Burettes - for adding a precise volume of a liquid

Pipettes - to dispense small and precise amount of liquid samples

Bunsen burners, hot plates, hot water baths - heat sources

Beakers, Erlenmeyer flasks - to contain reactions or to hold liquid samples

Watch glasses - a cover for beakers; sometimes used as an evaporating dish

Funnels - for funneling or for filtering

Graduated cylinders - to measure an amount of liquid

Volumetric flasks - to make precise dilutions

Wash bottles - for dispensing small quantities of distilled water

Wire gauges, clay triangles - to support a container while it is heating

Clamp stands - to support a piece of equipment or a part of it that is otherwise unstable

Balances - to measure the mass of a reagent or product

Kipp's apparatus - to produce a reagent gas (e.g. H2S) in a controlled manner

Spectrophotometers - to measure the absorbance and transmittance of a liquid sample

Fume hoods - to ventilate harmful gases

Desiccators - to preserve a substance in a moisture-free environment

Answer:

2.??

3. They are helpful in his environment because he is able to hunt for prey and also protect itself from other predators.Three major interactions are competition, predation, and symbiosis.

Explanation:

Answer:

Natural selection is a theory conceived by Charles Darwin that states that in a population, organisms with a genetic trait that increases the chance of having offspring will pass on their genes to the next generation more than those without it. Natural selection ultimately leads to evolution after many successive generations.

Answer:Natural selection is a process where organisms that are better adapted to an environment will survive and reproduce. The ones with the  favorable circumstances and has one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome and passes the genes on to the off spring. Over many generations, the process of natural selection leads to evolution occurring.

Explanation:

Answer:

inputs: carbon dioxide, water

outputs: sugar, oxygen

Explanation:

Here is the equation for photosynthesis:

CO2 + H2O ----sunlight energy---> C6H12O6 (glucose/sugar) + O2

In the given scenario, the input is the carbon dioxide and water while it will give output of oxygen and glucose in case of plants.

Process called photosynthesis by which plants convert sunlight, water, and carbon dioxide into oxygen and sugar energy.

Photosynthesis is a process that plants and other organisms use to convert light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration.

Photosynthesis' primary function is to convert solar energy into chemical energy and then store that chemical energy for later use.

This process powers the majority of the planet's living systems. It is inefficient by human engineering standards, but it does the job.

Thus, during the process of photosynthesis, the inputs are carbon dioxide and water, while the output is glucose and oxygen.

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Answer:

responsible by law is liable

Answer:

A solar eclipse occurs when the moon gets between Earth and the sun, and the moon casts a shadow over Earth. A solar eclipse can only take place at the phase of new moon, when the moon passes directly between the sun and Earth and its shadows fall upon Earth's surface

Explanation:

A solar eclipse occurs when the moon passes in front of the sun, blocking it out partially or completely. The eclipse results in parts of the earth being covered in the shadow of the moon.

Answer:

The lizard will have a higher metablolic rate and it will have a higher activity level

Explanation:

Fishermen use minnows as bate, the minnows are stored in cold water for slower metabolic rate and a lower acivity level so that the minnows can last longer. It is the opposite of the lizard question

Answer:

Heritable variation refers to the genetic differences between organisms that allow you and I to have different hair colour, height

Explanation:

These variations can be a result of genetic mutation, where factors such as sunlight alter certain genes. This is why people in Africa, for instance, have dark skin.

Answer:

Hydrogen sulfide or methane

They use methane as an energy source

Final answer:

Chemosynthetic bacteria use a variety of electronegative elements or compounds, like oxygen, carbon dioxide, and iron, as electron acceptors in their electron transport chains to produce energy.

Explanation:

Chemosynthetic bacteria utilize various electronegative elements or compounds to drive the electron transport chain (ETC) as part of their unique metabolic processes. These organisms can be found in different habitats, including deep-sea vents and soil. One primary example is the group of nitrifying bacteria, which oxidize ammonia (NH₃) to nitrite (NO₂), and further to nitrate (NO₃). These reactions are part of the nitrogen cycle, which is crucial for plant growth. The electrons removed from the nitrogen compounds are used to reduce NADP+ to NADPH, facilitating the flow of electrons through their membrane system. Another example includes bacteria that utilize hydrogen sulfide (H₂S) at deep-sea vents for chemosynthesis. Different chemosynthetic bacteria use a variety of oxidizing agents, such as O₂, CO₂, and Fe³⁺, leading to the formation of H₂O, CH₄, and Fe²⁺, respectively. Proton motive force and ATP production are also critical aspects of their energy metabolism.

Answer:

Oceans generate half the air we breathe and contain 97 percent of the water on earth. Oceans are home to many types of animals that we eat. ¨¨Living oceans absorb carbon dioxide from the atmosphere and reduce climate change impacts. ¨¨ Oceans absorb 50 times more carbon dioxide than our atmosphere. That is incredible.  Oceans are filled with life and we need to protect them.  Our food chain is also connected to the ocean.

The oceans play a critical role in supporting human life by providing oxygen, regulating climate, and offering food and other resources. Phytoplankton in the ocean contribute to over 50% of the Earth's oxygen supply. Sustainable management of marine ecosystems is essential as the oceans face challenges such as overfishing, pollution, and habitat destruction.

Importance of Oceans to Human Life

The oceans are fundamental to human existence, significantly affecting food security, climate regulation, and oxygen production. Covering 71% of the Earth's surface, oceans are home to diverse marine ecosystems. These ecosystems are crucial because they provide resources that are not infinite. Overfishing has led to the decline of fish, mammal, and sea turtle populations, while destructive fishing practices have damaged essential habitats. Furthermore, pollution, coastal development, and various human activities have caused degradation of marine environments, such as mangroves and sea grass beds, which serve as critical buffers for coastal areas.

Phytoplankton, one of the smallest oceanic organisms, are immensely important as they release over 50% of the Earth's oxygen through the process of photosynthesis, making them vital for human breathing and survival. Water, another precious resource provided by the oceans, is vital for all life, with the human body being made up of approximately 60-70% water. A critical concern is that only a small fraction of the Earth's water is fresh and accessible for human use. The ongoing exploitation and degradation of the oceans suggest the need for sustainable management of these vital resources to ensure they continue to support human welfare.

Answer:

Drought  affect people's health and safety,examples of drought impacts on society include anxiety or depression about economic losses, conflicts when there is not enough water, reduced incomes, fewer recreational activities, higher incidents of heat stroke, and even loss of human life.

Explanation:

Drought also affects the environment in many different ways. Plants and animals depend on water, just like people. When a drought occurs, their food supply can shrink and their habitat can be damaged. ... Increase in disease in wild animals, because of reduced food and water supplies.

Answer:

b

Explanation:

need increases

Option A. As forests are converted to urban developments, lumber production tends to decrease, leading to potential long-term supply issues and increased lumber prices due to the inelastic supply and higher demand.

When more forests are converted to urban developments, typically, lumber production decreases because less forest area is available for timber harvesting. As a result of reduced lumber production, the supply of lumber does not meet the rising demand post-urbanization, especially if urban development leads to increased construction.

This scenario usually leads to increased lumber prices due to inelastic supply in the short term and the demand exceeding the available supply. Additionally, as there is less incentive for suppliers from distant locations to bring additional lumber, long-term supply issues may arise.

Hence, the correct answer to the question is A. lumber production decreases. Deforestation, which is fueled by an expanding global population and urban development, can lead to a decline in available lumber, consequently affecting its price.

Answer: This can be useful site to study the diversity of organisms.

Explanation:

The founder effect is the known phenomena proposed by Ernst Meyer. It occurs when a small number of organisms leave the larger population. The genetic variation will be lost when a new population is established by the small population. Due to lack of genetic variation the new population becomes phenotypically and genotypically different from the parent population. This process lead to speciation.

The islands are the regions where few organisms can be found, those have migrated from the native land. Thus the study of diversity of these organisms will become simple.

The disadvantages of sexual reproduction:

• time and energy are needed to find a mate

• it is not possible for an isolated individual to reproduce

The disadvantages of asexual reproduction include:

•it does not lead to genetic variation in a population

•the species may only be suited to one habitat

• disease may affect all the individuals in a population

Answer:

Asexual reproduction requires ideal environmental conditions.

Explanation: It is a disadvantage because it is harder to find ideal locations.