Sequence the following species divergence points from oldest to most recent using principles of molecular clocks: -Two species of chameleons with genes that differ in 2% of nucleotides and have a substitution rate of 1% per 200,000 years. -Two species of plants have genes that differ in 5% of nucleotides and have a substitution rate of 2.5% per 300,000 years. -Ancestors of chimpanzees and humans diverged. -550,000 years ago -Two different species of fungi have genes that differ in 4.5% of their nucleotides, and they have a substitution rate of 1% per 350,000 years.

Answer:

Carbon

Explanation:

Carbon is found in all organic compounds, but that doesn't mean that all compounds that contain carbon are organic. Carbonates and carbon oxides are examples of compounds that contain carbon, but are not considered organic

Answer:

true

Explanation:

The development period of the animals and human beings starts after the birth when a person starts learning and development.

Answer:

False it the correct answer of Oddeyseyware

Explanation:

Answer:

Charles Darwin proposed the theory of natural selection.

According to mechanisms mediating smooth muscle contraction, it is expected that The force generated and duration of contraction would be greater than the control.

In the end, blood flow and luminal diameter in vascular systems are determined by smooth muscle cells. A crucial mechanism for regulating the contractility of vascular smooth muscle is dynamic changes in intracellular calcium. As a result, intracellular calcium-influencing processes are significant regulators of vascular function with physiological and pathophysiological ramifications.

If smooth muscle were bathed in a calcium-modulated medium (calmodulin) and then excited to a voltage level, there would be a novel mechanism for the contraction that is not dependent on Ca ion entry, so choice b is correct.

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Answer:

Ocean currents act as conveyor belts of warm and cold water, sending heat toward the polar regions and helping tropical areas cool off, thus influencing both weather and climate. ... The ocean doesn't just store solar radiation; it also helps to distribute heat around the globe.

Hope I helped you! <3Miss Hawaii

Explanation:

Your answer is -, sending heat toward the polar regions and helping tropical areas cool off

In response to the pancreatic hormones insulin and glucagon, the liver helps maintain blood glucose levels. Glucose enters the liver after a meal, and blood glucose levels rise. This excess glucose is handled by glycogenesis, which occurs when the liver converts glucose into glycogen for storage.

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The excess glucose exists dealt with by glycogenesis in which the liver transforms glucose into glycogen for storage.

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Answer:

True

Explanation:

Cofactor is a biological term used in describing a form of a non-protein chemical compound. It is highly required in the biological operation. It is in two types, the Coenzymes and Prosthetic groups.

While the Prosthetic groups are well connected to an enzyme, the coenzymes on the other hand are conected to an enzyme loosely.

Hence, it is TRUE that Cofactors for some enzymes are not considered prosthetic groups because they are loosely held during the course of the action

Complete question, Answer and Explanation:

Due to technical problems, you will find the complete question, the answer, and explanation in the attached file

The producers in a food chain that apply is organisms that are able to make food by means of photosynthesis organisms that rely on plants or other consumers for food and energy the first organisms in a food chain.

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Answer:

an earthquake

Explanation:

Answer:

an earthquake

Explanation:

Answer:

Explanation:

Meristems are regions in plants where active cell division occurs, resulting in the growth of new plant tissue.

Apical meristems are located at the tips of roots and shoots and are responsible for primary growth in plants.

Apical meristems are important because they are responsible for the growth of new tissues that give rise to leaves, stems, and roots, which are essential for plant growth and development.

The growth of new plant tissue is caused by the continuous activity of apical meristems, which divide and differentiate to form new cells and tissues.

The shoot apical meristem produces structures such as leaves, stems, and flowers as its cells divide by mitosis.

Tropism is the growth response of a plant to a particular environmental stimulus.

Two types of tropisms are phototropism, which is the growth response of plants to light, and gravitropism, which is the growth response of plants to gravity. In phototropism, plants respond to the direction and intensity of light by growing towards it, while in gravitropism, plants respond to the direction of gravity by growing either towards or away from it.

The main group of plant hormones are auxins, gibberellins, cytokinins, abscisic acid, and ethylene.

The main functions of plant hormones include regulating growth and development, controlling tropisms, responding to environmental stimuli, and coordinating plant responses to stress.

Auxin influences gene expression by binding to specific receptors in the nucleus of cells, which leads to changes in gene expression that regulate cell growth and differentiation.

Micropropagation is a technique used to produce large numbers of plants from a small amount of tissue.

Micropropagation is done by culturing plant tissue in vitro, under sterile conditions, and providing it with the necessary nutrients and plant hormones to stimulate growth and development.

Micropropagation is done for several reasons, including the production of disease-free plants, the preservation of rare or endangered species, and the rapid propagation of genetically identical plants for commercial purposes.

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The Gibbs free energy available to do work for the reaction is approximately -15,427.20 kJ, rounded to two decimal places.

To calculate the Gibbs free energy (ΔG) available to do work for the given reaction, we need to use the formula:

ΔG = -nFΔE

where ΔE is the potential difference, n is the number of electrons transferred, and F is the Faraday constant (96.5 kJ/(mol e- × V)).

First, let's calculate the ΔE for the reaction by subtracting the reduction potential of the anode (NH4+ to NO2-) from the reduction potential of the cathode (O2 to H2O):

ΔE = E(cathode) - E(anode)

= (+0.82 V) - (+0.34 V)

= +0.48 V

Next, we need to balance the full reaction to determine the number of electrons transferred (n) when 440 moles of NH4+ are oxidized. The balanced equation is as follows:

8NH4+ + 6O2 -> 8H2O + 6NO3- + 16H+

From the balanced equation, we can see that for every 8 moles of NH4+ oxidized, 6 moles of electrons are transferred.

So, the number of electrons transferred (n) when 440 moles of NH4+ are oxidized can be calculated as:

n = (6 mol e- / 8 mol NH4+) × 440 mol NH4+

= 330 mol e-

Therefore, when 440 moles of NH4+ are oxidized, 330 moles of electrons are transferred.

Now, let's substitute the values into the equation:

ΔG = -nFΔE

= -(330 mol e-) × (96.5 kJ/(mol e- × V)) × (+0.48 V)

Calculating this expression, we find:

ΔG ≈ -15,427.20 kJ

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Answer: 100kcal

Explanation:

The data provide the strongest evidence for the claim that breeding of chickens is done for large bodies.

Poultry breeding is the practice of selectively breeding and raising domesticated birds such as chickens, turkeys, ducks, geese, and quails for the purpose of improving their desirable traits such as meat quality, egg production, growth rate, disease resistance, and temperament.

The process of poultry breeding involves selecting the best birds from a flock based on specific criteria, such as body size, weight, conformation, and feather quality. These birds are then bred together to create a new generation of birds with improved genetics, which will hopefully exhibit the desired traits in greater measure. The process is repeated over multiple generations until the desired traits are fixed in the population.

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Answer:

Density-independent factors are abiotic factors that affect populations regardless of their size, such as natural disasters (e.g., fires, floods) and weather events (e.g., droughts, extreme temperatures). Density-dependent factors are biotic factors that affect populations based on their size and density, such as competition for resources (e.g., food, water, shelter), predation, and disease.

Density-independent factors are abiotic factors that affect populations regardless of their size, such as natural disasters (e.g., fires, floods) and weather events (e.g., droughts, extreme temperatures). Density-dependent factors are biotic factors that affect populations based on their size and density, such as competition for resources (e.g., food, water, shelter), predation, and disease.

Answer:

a lack of resources and stability can be a major factor for this situation, meaning they dont have much of a choice. they become a nuisance to richer clients and are therefore removed and dumped away.

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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Answer:

ok hollup ima need to get it up

The high death rate of children in orphanages the Harlow investigated was called marasmus syndrome. Marasmus syndrome is a consequence of severe malnutrition, which reduces the needed calories to perform essential metabolic activities. Eventually this could lead to famine and death.

The correct answer is - b. molecules as atoms combine together to form molecules and sugar is a carbohydrate molecule.

A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical or biological compound that can take part in a chemical reaction.

Sugars are carbohydrate molecules made up of carbon, hydrogen, and oxygen atoms that are bonded together by chemical bonds called covalent bonds.

Thus, the correct answer is - option B. molecules.

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Answer: because that is not how were made.

Explanation:

Answer:

Chemical energy

Explanation:

We get chemical energy from foods, which we use to run about, and move and talk (kinetic and sound energy). Chemical energies are stored in fuels which we burn to release thermal energy - this is one way of making electricity, see Electricity for more information.

Overall, the population shift in South Africa has had a negative impact on agriculture, leading to a decline in the sector and decreased food security for rural communities.

Population refers to the total number of individuals of a particular species or group living in a specific area or region. In the context of human populations, it refers to the number of people living in a particular geographic area or country. Population can also refer to subgroups within a larger population, such as age groups, ethnic or racial groups, or socioeconomic groups. Population can be measured and analyzed in various ways, including through demographic data such as birth and death rates, migration patterns, and population density.

Here,

Over the past 50 years, there has been a significant population shift in South Africa, with many people moving from rural areas to urban areas in search of better economic opportunities, education, and healthcare. This trend is known as urbanization and is a common phenomenon in many developing countries.

As people move from rural areas to urban areas, the population density in urban areas increases, while rural areas become less populated. This population shift has had a significant impact on agriculture in South Africa. As more people move to cities, there is less demand for agricultural products, leading to a decline in the agricultural sector. This has resulted in the loss of agricultural land, reduced productivity, and decreased food security for rural communities.

In addition, the population shift has also led to changes in land use. As urban areas expand, they often encroach on agricultural land, leading to land fragmentation and reduced agricultural productivity. This can also lead to conflicts between urban and rural communities over land use and resource allocation.

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Answer:

If all the grass disappeared from a community, the most likely change to occur would be that the deer population would decrease. This is represented by option D. Deer are herbivores and rely on grass and other vegetation as a primary food source. Without grass, the deer would have less food available, which could lead to a decrease in their population. This could also have a cascading effect on other species in the community, such as predators that rely on deer as a food source.

Explanation:

Answer: The pattern of starch storage is closely related to the distribution of chlorophyll in plants

Explanation:

Chlorophyll is a green pigment that helps plants to absorb light energy and convert it into chemical energy via photosynthesis. Starch, on the other hand, is a complex carbohydrate that is used by plants as a storage form of energy.

Chlorophyll is predominantly found in the chloroplasts of plant cells, which are responsible for carrying out photosynthesis. The chloroplasts are found mainly in the leaves of the plant, where they are exposed to light. Therefore, the highest concentration of chlorophyll is found in the leaves of the plant.

Starch, on the other hand, is synthesized in the chloroplasts of the plant cells during photosynthesis. The starch is then stored in different parts of the plant, depending on the plant species. Some plants store starch in their leaves, while others store it in their stems, roots, or even fruits.

In general, plants that have a high concentration of chlorophyll in their leaves tend to store more starch in their leaves. This is because the leaves are the primary site of photosynthesis and starch synthesis. However, some plants, such as potatoes, store most of their starch in their underground tubers.

Therefore, the pattern of starch storage in plants is closely related to the distribution of chlorophyll, with the highest concentrations of both found in the leaves of the plant. However, the specific pattern of starch storage can vary between different plant species, depending on their individual needs and adaptations.

Answer:

Boreal forest is among the largest terrestrial biomes on earth in which minerals in the soil most rapidly depleted.

Answer:

D. Lab 4

Explanation:

Measurements in scientific experiments require the collection of data. The precision of a measurement refers to how close a measurement value is to one another.

N.B: The accuracy of a measurement is different from the precision. Accuracy is how close the measured values are to the true value.

To calculate the precision of measured values in different labs for a weighed metal, we use the range of values i.e. the difference between the highest value and lowest value for each lab.

Lab 1: 17.99 g, 18.15 g, 18.23 g

Range= 18.23 - 17.99 = 0.24

Precision result (mean±range)= 18.12±0.24

Lab 2: 18.1 g, 18.2 g, 18.3 g

Range= 18.3 - 18.1 = 0.2

Precision result: 18.2±0.2

Lab 3: 18.11 g, 18.13 g, 18.97 g

Range= 18.97 - 18.11 = 0.86

Precision result: 18.40±0.86

Lab 4: 18.93 g, 18.95 g, 19.03 g

Range= 19.03 - 18.93 = 0.1

Precision result: 18.97±0.1

Based on the range of values in the precision results from each lab, it is evident that Lab 4 has the most precise measurements because the repeated values didn't vary much from one another compared to values from other labs.

Explanation:

Chemical spills are the most common accidents when working in a laboratory requiring chemicals. Improper or careless opening, handling, or storage of chemicals might lead to chemical spills.