4. Evaporation is the process of a liquid becoming solid.
TRUE OR FALSE:

third world countries

Explanation:

are the results of countries with low exports and high imports

Answer:

Haploid cells have only one set of chromosomes due to meosis.

Explanation:

Gametes are sex cells.

Gametes contain half the chromosomes contained in a normal diploid cell.

Gametes are produced as a result of meiosis.

During meiosis, the chromosome number is reduced to half and each daughter cell receives half the set of chromosomes.

These gametes unite together to form a zygote.

If both the gametes were diploid, the zygote will have double the number of chromosomes of somatic cells, which in turn results in an abnormal organism.

Thus, gametes have a haploid number of chromosomes.

Answer:

All leaves have the same basic structure - a midrib, an edge, veins and a petiole. The main function of a leaf is to carry out photosynthesis, which provides the plant with the food it needs to survive. Plants provide food for all life on the planet.

Explanation:

Answer: C) A statement made by Henrietta Lacks’s husband to a magazine

Explanation:An excerpt from The Immortal Life of Henrietta Lacks

"Eventually I tracked down a few magazine articles about her from the seventies. Ebony quoted Henrietta’s husband saying, 'All I remember is that she had this disease, and right after she died they called me in the office wanting to get my permission to take a sample of some kind. I decided not to let them.'"

Answer:

Yes, but not directly, that's why it is unusual. Though, mutation of genes can in fact cause risk for cancer. This also includes for everyone else.

Answer:

on the inner membranes of the mitochondria

Explanation:

instead of all the energy being released at once and that energy is used to form ATP

Answer:

skin colour, eue colour, sickle cell anaemia etc

Explanation:

These are traits that aren't fully transmitted from the parent's gene to that of the offspring

A somatic mutation contributes to variation in the population it will not be inherited by individuals in the next generation.

A neutral mutation is any mutation that does not affect the fitness of an organism and they are generally found in non-coding genome regions instead of protein-coding regions.

Nonetheless, it is important to highlight that a mutation in an intron may also have evolutionary significance if it has regulatory roles associated with gene expression.

In conclusion, a new mutation arises in the intron of a gene in a somatic cell, thereby this mutation contributes to variation in the population it will not be inherited by individuals in the next generation.

Complete question:

Fill in the blank. A new mutation arises in the intron of a gene in a somatic cell. This mutation contributes to _____ in the population _____ by individuals in the next generation.

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Answer:

Dermal Tissue

It mediates most of the interactions between a plant and its environment. Epidermal cells secrete a waxy substance called cuticle, which coats, waterproofs, and protects the above-ground parts of plants. Cuticle helps prevent water loss, abrasions, infections, and damage from toxins.

Explanation:

Answer:

epidermal tissue

Explanation:

I hope that helps

The majority of Earth is covered with water. Water takes longer to heat up and cool down which has an impact on the air temperature. The slow change in water temperature is due to water's response: "high specific heat."  (Option B).

The amount of heat required to increase the temperature of one gram of a material by one degree Celsius (°C) is defined as specific heat. Water has a high specific heat, which means that it takes more energy to raise the temperature of water than other substances.

The heat capacity of a substance defines how much energy is required to change its temperature. Items having a high specific heat capacity require more energy to alter their temperature, while objects with a low specific heat capacity require less energy to change their temperature.

Water has a high specific heat, which implies that it takes a lot of heat to raise its temperature. This keeps the environment's temperature from getting overly hot or cold. Also, because humans are composed of around 66% water, this feature of water aids in the regulation of our body temperature.

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Answer: primary

Explanation: herbivores or autotrophs feed on only plants to obtain energy. For instance, cows and goats make good examples of these primary consumers. Flies are considered primary consumers because they mainly eat primary producers

The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.

A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.

Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.

Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.

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Answer:

The consequences of air pollution on human health

In particular, air pollution can cause cardiovascular problems, allergies, asthma attacks, conjunctivitis, bronchial diseases, lung or skin cancers, vision problems, blood Problems in the mental development of the child, among others.

Explanation:

I hope that this answer has helped you to more thoroughly understand your question asked. If you have any further questions, please do not hesitate to ask them below.      

Have a great rest of your day/night!

Answer:

D) cellular respiration.

Explanation:

Carbon Dioxide is a product of cellular respiration.

Answer: The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles.

Explanation: hope this helps

Lower blood pressure would be made up for by either expanding the afferent radius or contracting the efferent radius.

The best way to offset the impact of low blood pressure on the glomerular filtration rate is by afferent arteriole dilatation. The glomerular filtration rate and blood pressure can both be maintained at normal levels thanks to this change. The opposite happens when the afferent arteriole's diameter is reduced. Reduced resistance results in an increase in efferent arteriolar diameter, which lowers the glomerular capillary hydrostatic pressure and lowers GFR. The opposite happens when the efferent arteriole's diameter is reduced. Afferent arteriole constriction has two effects: it lowers pressure downstream from the constriction, which lowers the GFR; and it raises vascular resistance, which decreases renal blood flow (RBF).

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Answer:

choanoflagellates are more closely related to sponges than they are to protists

Explanation:

Answer: animals, human

Explanation:

Answer:

B

Explanation:

The periodic table of elements is organized by the number of protons because it shows the atomic number of the elements.  Thus option c is correct.

Periodic table is defined as a list of chemical elements that are ordered in atomic number order, typically in rows, with similar atomic structure elements (and thus, similar chemical characteristics) appearing in vertical columns.

It can also be defined as a classification of all known elements based on their growing atomic number and recurrent chemical features.

The 118 known chemical elements are arranged in a systematic way in the periodic table, also known as the periodic table of elements.

The elements are arranged in the Periodic Table in accordance with their related chemical and physical characteristics. There are rows and columns in the table. The periodic table's vertical columns stand in for Groups. Periods are shown in the table as horizontal rows.

Thus, the periodic table of elements is organized by the number of protons because it shows the atomic number of the elements. Thus option c is correct.

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As needed, the sympathetic nervous system Raises blood sugar and Dilates pupils of the eyes.

One of the three divisions of the autonomic nervous system, along with the parasympathetic and enteric nervous systems, is the sympathetic nervous system (SNS). The enteric nervous system is sometimes thought of as a component of the autonomic nervous system and other times as a distinct entity.

The autonomic nerve system regulates the unconscious actions of the body. The sympathetic nervous system's main job is to stimulate the body's fight or flight response. It is, nonetheless, continually active at a fundamental level in order to maintain homeostasis.

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When electrical signals stimulate it to its threshold, the is action potential immediately observed, and the neuron fires or passes a message to other neurons.

The action potential is an electrochemical event that occurs in excitable cells, such as neurons.

When the neuron receives sufficient stimulation or input from other neurons, the membrane potential reaches a critical level called the threshold.

At this point, voltage-gated ion channels in the neuron's cell membrane open, allowing an influx of positively charged ions, such as sodium (Na+), into the cell. This rapid depolarization leads to a rapid change in the membrane potential.

The action potential is characterized by a sequence of events, including depolarization, repolarization, and hyperpolarization.

After reaching the threshold, the neuron undergoes a rapid depolarization phase, where the inside of the cell becomes more positive compared to the outside.

This electrical change travels along the neuron's axon as a self-propagating wave.The action potential enables the neuron to transmit information in the form of electrical impulses.

Once the action potential reaches the end of the neuron's axon, it triggers the release of neurotransmitters into the synapse, allowing communication with other neurons or target cells.

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The standard heat of formation of compound C₃H₄ is 276.8kJ/moles

In this case, the equation used to model the heat transfer to the calorimeter and calculate the heat of reaction is:

ΔHrx = mcΔT

where ΔHrx is enthalpy, m is mass, c is the specific heat, and ΔT is the temperature change. Obtained by substituting water volume, temperature change, and specific heat.

This reaction enthalpy corresponds to the combustion of propyne.

C₃H₄ + 4O₂⇒3CO₂ +2H₂O

Changes in their enthalpies affect the enthalpies of formation of propyne, carbon dioxide, and water, targeting the enthalpy of propyne.

ΔHrx = 3ΔHf CO₂ + 2ΔHf H₂O - ΔHf C₃H₄

However, the reaction enthalpy must be expressed in kJ per mole of C₃H₄, so divide by the corresponding number of moles in 7.00 g of this compound.

ΔHrx = -339.16 kJ x 1/7.00 g x 40.06 g/1 mol = -1940.9kJ/mol

Then solve for the enthalpy of formation of C₃H₄ as shown below.

ΔHf C₃H₄ = 3ΔHf CO₂ + 2ΔHf H₂O - ΔHrx

So plug in and get (the enthalpies of formation of CO2 and H2O can be found in the NIST database):

ΔHf C₃H₄ = 3ΔHf CO₂ + 2ΔHf H₂O - ΔHrx

ΔHf C₃H₄ = 3(-339.16 kJ) + 2(-241.8 kJ) - (-1940.9 kJ)

ΔHf C₃H₄ = 276.8kJ/moles

Your question is incomplete but most probably your full question was

7.00 of Compound x with molecular formula C3H4 are burned in a constant-pressure calorimeter containing 35.00kg of water at 25c. The temperature of the water is observed to rise by 2.316c. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.) Calculate the standard heat of formation of Compound x at 25c.

Be sure your answer has a unit symbol, if necessary, and round it to 3 significant digits.

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False. The ventral rami of spinal cord levels T2-T12 do enter into the formation of plexuses.

For, the ventral branches of the T2-T12 levels of the spinal cord form the lumbar plexus, sacral plexus and coccygeal plexus, which are part of a larger network of nerves called the brachial plexus.

The lumbar plexus, sacral plexus and coccygeal plexus provide the nerves for the lower body, including the legs and feet, lower abdomen and pelvic region.

Since the ventral branches of the T2-T12 levels of the spinal cord enter these plexuses, they are important for the function of many of the muscles and organs of the body.

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Answer:An increase in atmospheric carbon dioxide since the trees were taking in carbon dioxide from the environment

Explanation:

Answer:

64 codons

Explanation:

The three-letter nature of codons means that the four nucleotides found in mRNA — A, U, G, and C — can produce a total of 64 different combinations. Of these 64 codons, 61 represent amino acids, and the remaining three represent stop signals, which trigger the end of protein synthesis.

Answer:12

Explanation:If you were to change the mRNA strand it would be:

T T T C G C T A T C G A  

Answer: D

Explanation: hope this helps

The kitten period, which lasts from 0 to 6 months of age, is the youngest stage of a cat's existence, and mitosis is responsible.

Mitosis is responsible for the growth of the organism makes somatic cells for the body and is necessary for the organism's life span.

Meiosis, often known as this procedure, is a component of sexual reproduction in cats (and in humans, dogs etc).

Therefore, mitosis is responsible, for a kitten becoming a cat, which is the growing phase in a cat's life span.

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The human intestinal tract is best defined as: option (A) states "a closed system containing a complex medium".

This means that the system is completely sealed off from outside influence and that the environment inside is composed of a variety of chemical compounds.

The closed system prevents any bacteria or other microorganisms from entering and contaminating the intestinal tract, and the complex medium provides the necessary nutrients for cellular growth and metabolism.

In addition, the complex medium helps to filter out any toxins or other unwanted substances from entering the body.

In summary, the human intestinal tract is a closed system with a complex medium that helps to protect the body from outside contaminants while providing the necessary nutrients for cellular growth and metabolism.

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