Genetic changes followed by selection are best described as the fundamentals of what process?

a. reproduction

b. genetic drift

c. regeneration

d. dna replication

e. evolution

Answer:

A. Asian elephants tend to be smaller than African elephants.

Explanation:

Stating that Asian elephants tend to be smaller than African elements is a qualitative observation.

A qualitative observation are data often gathered with our senses of sight, touch, feel, tastes etc.

Answer: Here is the answer. Please mark me brainlist.

Explanation:

School systems have limited financial resources with which to pursue their objectives and the

design of school funding policies plays a key role in ensuring that resources are directed to where they

can make the most difference. This report seeks to assist governments in achieving their education

policy objectives through the efficient and equitable use of financial resources. It provides a

systematic analysis of school funding policies by looking into the organisation of responsibilities for

raising and spending school funds, the design of mechanisms to distribute funding to schools, the

procedures for planning education budgets, and the practices for monitoring, evaluating and

reporting how funding has been used. Eighteen school systems were actively engaged in the

preparation of this report. In addition, the analysis considers the broader research and policy

literature on school funding approaches in other OECD and partner countries.

This report is the first in a series of thematic comparative reports which bring together the

findings of a major OECD project on the effective use of school resources, the OECD Review of Policies

to Improve the Effectiveness of Resource Use in Schools (School Resources Review).

Forthcoming reports will focus on the organisation of the school offer and on the management of human

resources in school education. The School Resources Review was launched in 2013 to help countries

exchange best practices and learn from one another, and to gather and disseminate evidence of what

works in school resource policies. The project highlights issues and explores ideas for policy

development that may be difficult to raise in national debates. It seeks to inform discussions among

stakeholders with new and different perspectives that are based on research and evidence from

different countries. This ambition also underpins the idea of the thematic comparative reports and the

work behind them.

Answer: These external agents of genetic change are called mutagens. Exposure to mutagens often causes alterations in the molecular structure of nucleotides, ultimately causing substitutions, insertions, and deletions in the DNA sequence.

Explanation: Point mutations are a large category of mutations that describe a change in single nucleotide of DNA, such that that nucleotide is switched for another nucleotide, or that nucleotide is deleted, or a single nucleotide is inserted into the DNA that causes that DNA to be different from the normal or wild type gene

we can accurately visualize or model the solar system, we are better able to understand how it works, make predictions about the impacts of various changes in the solar system.

The solar system is a large with approximate size at least 100 astronomical units in size held together by the sun’s immense gravitational pull that keeps  the planets and the asteroids in orbit

The solar system have 8 planets  which  revolve around the sun in an elliptical paths known as orbits where The earth is also one of the planets and lies at a distance from the sun.

These planets were formed at least 4.6 billion years ago where discs of dust and gas orbiting around the sun followed by collapse and clumping together due to gravity.

There are two types of planets are observed such as Rocky planets include Mercury, Venus, Earth, and Mars as these are made up of solid rock and metal; Gas giants include Jupiter, Saturn, Uranus, and Neptune

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The correct answer is "e) all of the above". Hair on mammals can be used for camouflage, defense, sensory functions, and insulation.

Hair is used by modern mammals to protect, signal, hide, insulate, and detect their immediate environment. Insulation protects against excessive heat as well as serves to conserve heat, as it does for nocturnal desert animals like the camel.

Many goods use animal hair. Brushes and stringed instrument bows both use horse hair. Hog bristle, ox hair, and Siberian weasel hair are all used.

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Answer:

The coronary arteries

hope it helped

Explanation:

The structure that carries blood to the heart so the heart has its own supply of oxygen and nutrients to perform its function is called the coronary artery.

The cardiovascular system is responsible for the pumping of blood from the heart to the lungs to get oxygen. The heart sends this oxygenated blood through the arteries to the rest of the body.

The two components arteries and veins play an important role in the separation of rich oxygen blood from poor oxygen blood. The arteries take oxygenated blood and nutrients from your heart to the rest body, while veins take poorly oxygenated blood from your body to the heart.

Therefore, it is well described above.

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Producers produce glucose in the chloroplast

The chloroplast is a small, elliptic shape, and membrane-bound organelle found in the cells of most green plants.

The chloroplast contains green substances known as chlorophyll. The chlorophyll is responsible for absorbing radiant energy from the sun for the process of photosynthesis.

Both the light-dependent and light-independent reactions take place in the chloroplast.

Thus, the production of glucose which is a light-independent reaction takes place in the chloroplast.

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Answer:

The in chloroplasts

Answer: True,

Explanation:

Explanation:

Rh factor is an inherited protein found on the surface of red blood cells. if your has the protein, you're Rh positive. if your blood doesn't have the protein, you're Rh negative. The "+" or "-" you might see after your blood type refers to Rh positive or Rh negative.

The cube-shaped gray mineral with smooth faces and sharp edges likely experienced cleavage.

Cleavage is characterized by orderly breakage in well-defined planes, resulting in flat and smooth sides on the broken piece of a mineral. The cube-shaped gray mineral described with smooth faces and sharp edges fits this description. The smooth faces and sharp edges suggest that the mineral broke along specific planes, indicating cleavage.

On the other hand, the rust-colored mineral with a rough, uneven surface is more likely to have experienced fracture. Fracture refers to random breakage, resulting in rough, random, and uneven surfaces on the broken piece of a mineral.

It's important to note that visual inspection alone may not always provide definitive information about the cleavage or fracture of a mineral.

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Answer:

The correct answer is - a density independent factor.

Explanation:

Any external cause or change that leads to the change in the size of a population regardless of the density of the particular population known as a density independent factor in ecology.

Density independent factors are the factors that are not affected by the size of the population size of the species such as weather, climate and natural disasters.

Thus, the correct answer is -  a density independent factor.

Jan Zalasiewicz is an expert in the study of graptolites, an extinct group of marine organisms. Graptolites were colonial animals that lived during the Ordovician period, approximately 485 to 443 million years ago.

They had a unique appearance, resembling delicate, branching structures made of chitinous material. These structures, called "thecae," housed individual zooids within each branch. Graptolites were exclusively aquatic organisms and inhabited marine environments, particularly shallow seas. They attached themselves to hard substrates such as rocks or seaweed using a holdfast structure at the base of their colonies. They primarily lived as filter feeders, using specialized appendages to capture plankton and organic particles from the water column. Graptolites played an important role in the marine ecosystem as key members of the planktonic community during the Ordovician, contributing to the flow of energy and nutrient cycling in the ancient oceans.

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The statement which best distinguishes between genes and chromosomes is that Genes are segments of DNA, while chromosomes are made of many genes strung together. Thus, the correct option for this question is C.

Chromosomes may be defined as thin, thread-like structures that may appear in the nucleus of the cell during the process of cell division. These structures may contain DNA, RNA, histones, and non-histone proteins. Chromosomes may be discovered by E. Strasburger in 1875.

While genes are made up of sequences of DNA and are arranged, one after another, at specific locations on chromosomes in the nucleus of cells. It is the basic unit of heredity passed from parent to child.

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes.

Therefore, the correct option for this question is C.

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Activation of G-protein coupled receptors contribute to the long-term enhancement of the gill withdrawal reflex in Aplysia but is not involved in the short-term enhancement of the reflex.

The gill and siphon withdrawal reflex (GSWR) of the sea hare Aplysia californica, also known as a giant shell-less sea snail or sea slug, is an involuntary defence response that the sea hare does automatically. When the animal is startled, this response causes the sea hare's sensitive siphon and gill to retract, protecting them from further damage. Because of the ease of use and fairly large size of the underlying neuronal circuitry, the species Aplysia californica is utilized in the field of neuroscience research for the purpose of investigating the cellular basis of behaviour, such as habituation, dishabituation, and sensitization.

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Combustion, so therefore the answer is D

Answer:

Salinity pertains to the degree of saltiness or the relative proportion of salt in a solution. ... By definition, salinity in relation to limnology refers to the total amount of dissolved solids in water in parts per thousand by weight.

Answer:

Salinity is the saltiness or dissolved inorganic salt content of a body of water. Substances that are dissolved in water are usually called solutes.

Explanation:

On average, an adult horse weighs between 900 and 1,200 pounds (410 and 550 kg).

However, some horses can weigh significantly more or less than this.

A typical weight range for an adult horse is between 800 to 1,200 pounds (363 to 544 kg). However, some horse breeds, such as draft horses, can weigh as much as 2,000 pounds (907 kg) or more. On the other hand, some pony breeds can weigh as little as 350 to 450 pounds (159 to 204 kg).

It's also important to note that weight can be affected by the horse's nutrition and overall health. A horse that is underweight or malnourished will weigh less than a healthy horse, while a horse that is overweight can weigh more.

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The temperature of a substance is a measure of how rapidly its individual molecules are moving.
The temperature of a substance is a measure of how rapidly its individual molecules are moving.

Temperature is said to be directly proportional to kinetic energy which means as temperature increases, the kinetic energy also increases. Therefore, molecules now are moving faster.

An increase in temperature results in an increase in kinetic energy of the molecules. This leads to the molecules locomotion to be much greater than the force holding the molecules together, thus giving the molecules more freedom to move around more easily with little hindrance.

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it can be seen in the kidneys

Answer:

D. When there is no competition

Explanation:

If there is no competition in a population, exponential growth can occur.

Without competition, resources are not limited and a population can grow rapidly.

With limited resources, a high death rate, and a reached carrying capacity, population growth is strongly limited and cannot grow at an exponential rate.

So, answer choices A, B, and C are all incorrect.

The correct answer is D. When there is no competition

Operations performance objectives trade off against each other as the performance of one objective can be improved by compromising on another.

These trade-offs are mostly due to resource constraints, and thus, they are a significant factor in operations management.

Operations performance objectives refer to the specific outcomes that an operation seeks to achieve. They are the goals of an operation. Organizations use operations performance objectives to create a strategy that addresses the objectives and outlines how to achieve them. Operations performance objectives are split into five categories: Cost: This objective refers to providing a service or product at the lowest possible cost.

Quality: This objective refers to providing a service or product that meets or exceeds customer expectations. Speed: This objective refers to delivering a service or product quickly. Dependability: This objective refers to delivering a service or product as promised. Flexibility: This objective refers to the ability to provide a service or product that meets customer needs. Operations performance objectives trade-offs Operational performance objectives trade-offs refer to the relationship between performance objectives. In operations management, achieving one objective often means sacrificing another. For example, achieving higher quality may mean incurring higher costs, which is a trade-off between quality and cost. In some cases, achieving one objective may enhance another. For instance, a quicker turnaround time (speed) can increase dependability and flexibility. These examples show that trade-offs can be positive or negative. The following are common trade-offs among operational performance objectives: Cost vs. quality: Offering higher quality goods or services will increase costs. Flexibility vs. speed: Being flexible slows down the speed of operations. Speed vs. quality: Higher speed may lead to lower quality. Dependability vs. flexibility: To be dependable, the operations need to be standardized, limiting flexibility.

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Answer:

D .follicle

Explanation:

because those are the structure of the hairs

Answer: Follicle

Explanation:

I took the test (clever)

Mark and recapture is an appropriate indirect method to estimate the population size or density of species like Gypsy moth and the Green lizard due to their biological and ecological characteristics.

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There are different methods to study population density. There are direct methods and indirect methods. Among these last ones, we might find the Mark-Recapture technique.

The Mark-Recapture technique assumes that

The method consists of capturing a sample of individuals belonging to the population under study. After capturing the individuals, the researcher marks and releases them again. The third step is to sample again: The researcher captures new individuals and counts how many of them are marked. These marked individuals belong to the first sample.

Indirect methods like this become a strong tool to estimate population size or density in species on which it is impossible to apply a direct method such as counting individuals.

For instance, if we need to estimate insects population density (Gypsy moth population) or reptiles population density (Green lizard population) because of their biological and ecological characteristics, the best way of doing it is by applying indirect methods. These species characterize as small-sized, fast to escape, they can hide in small inaccessible places, they have nocturnal habits, their reproductive rate is too high, and their distribution rate is wide. Among many other characteristics, their population density can not be estimated by direct methods. Mark-Recapture technique is the most suitable one.

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Before being harvested and sold, an individual cranberry must bounce at least 12 inches high to make sure they aren't too ripe.

What is harvesting?

When all the minerals have formed and the edible sections have achieved the proper level of maturity, the plant is harvested, which is the process of gathering the useful part or parts of the plant. Typically, the grain is harvested 10 to 15 days after it reaches physiological maturity.

Therefore, Before being harvested and sold, an individual cranberry must bounce at least 12 inches high to make sure they aren't too ripe.

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Answer:

True

Explanation:

In an experiment, if you change more than one variable at a time, you will not know what is causing the potentially different outcome. If you only change one variable and leave all other factors constant, you will know exactly what is causing the data.

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Fossil D can only be used to determine the relative age of fossils A, B, C, E, and F if it is known which fossil is older and which is younger.

What is fossils ?

Fossils are the remains of plants or animals that have been preserved in the earth’s sedimentary layers. They can be found in many different forms, such as bones, shells, tracks, and even impressions. Fossils are important to scientists, as they provide valuable information about the history of life on Earth and the evolution of species. Fossils can range in age from thousands to millions of years old. The study of fossils is known as paleontology, and it provides a look into the past that cannot be found in any other way. Fossils can be found all over the world, and they have been used to help us understand the evolution of the environment and the plants and animals that inhabit it.

For example, if fossil D is known to be older than fossil E, then we can conclude that fossil A, B, C, and F are all younger than fossil D and fossil E. Similarly, if fossil D is known to be younger than fossil C, then we can conclude that fossil A, B, E, and F are all older than fossil D and fossil C. Therefore, the relative age of fossils A, B, C, E, and F can only be determined if the relative age of fossil D is known.

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Through the process of binary fission, a single bacterium divides and creates a new population. The DNA of every bacteria offspring is the same. (This entails a lack of genetic diversity).

binary fission, also known as asexual body division into two new bodies, When an organism divides into two parts (cytokinesis) through binary fission, it duplicates its genetic material, or deoxyribonucleic acid (DNA), with each new organism receiving one copy of the latter.

Since the genome of bacterial cells is made up of a single circular DNA chromosome, cell division is made easier. Because there is no nucleus or a large number of chromosomes, mitosis is not required. Binary fission refers to this method of cell division.

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Answer:

Like children learning to speak, little  finches learn songs from their elders. ... They let the animals peck at a key, which caused a plastic father finch to "sing" them a recorded song, up to 28 seconds per day. The scientists then measured how the youngsters slowly approached perfect imitation.

Explanation: