PLEASE HELP ME OUT!!! IVE BEEN STUCK ON THIS QUESTION FOR AN HOUR.

Answer:

Se explanation

Explanation:

Mechanical waves are waves that require a material medium for propagation e.g sound waves and waves on a spiral spring.

Electromagnetic waves do not require a material medium for propagation. They can travel through space.

The light and heat of the sun are far away in outer space yet they reach us on earth. There is no intervening medium between the earth and the sun that conducts its rays to the earth. As a result of this, we can conclude that the rays from the sun are electromagnetic waves.

Answer:

Chemical change is a change in which there is rearrangement of atoms and thus new substance is formed. There may or may not be a change in physical state.

Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen.  The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar and oxygen gas.

[tex]6CO_2+6H_2O\rightarrow C_6H_{12}O_6+6O_2[/tex]

Answer: high mass and high height

Explanation:

The gravitational potential energy is refered as the potential energy that has to do with the energy in a particular object due to the height of that object.

With the above explanation, when objects that have different masses are suspended from a height, the one that will have the greatest gravitational potential energy will be the one with a high mass and high height.

Therefore, the correct option is A.

DNA is created when nucleotides join together into a polynucleotide. Thus, the correct option is D.

Nucleotides may be defined as a molecule that consists of a nitrogenous base, a phosphate group, and a pentose sugar.

Nucleotides are the monomers of nucleic acids (DNA/RNA). They are joined together by covalent bonds with the help of the phosphate group of one nucleotide and the pentose sugar of another nucleotide.

Therefore, the correct option for this question is D.

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Answer:

Exactly 4 people can go.

Explanation:

First, you subtract $169.50 from 14.50, which is $155

Then, you do 38.75 x 4, to find out how much money it would cost for the tickets.

Since 38.75 x 4 = $155, exactly 4 people can go to the amusement park.

Answer:

Four people could go to the amusement park

Explanation:

38.75 X4=155+14.50=169.50

Answer:

Lactic acid accumulation in the leg muscles

Explanation:

Muscle cramps are painful feelings caused by sudden contractions of the muscle. Cramps are caused by several reasons, however, based on the description of Akashay's activity, it is caused by ACCUMULATION OF LACTIC ACID in the leg muscles due to strenuous exercise.

According to this question, Akashay decided to run a marathon without any prior training. However, he started to get cramps on his thigh coupled with rapid breathing. There is a lack of oxygen in his cells, hence, anaerobic respiration was used leading to the formation of lactic acid. The buildup of lactic acid is what causes the painful sensation called CRAMP.

The cilia serve to transport dust and other foreign particles, trapped inmucous, to the back of the nasal cavity and to the pharynx. There the mucus iseither coughed out, or swallowed and digested by powerful stomach acids. After passing through the nasal cavity, the air flows down the pharynx to thelarynx.

Answer:

. ... . ....

Answer:

Mass wasting has drastic effects on human and animals life in the form of landsliding , earthquakes . Deposition is the pres in which sediments , rocks and soil are added land mass . A positive effect of deposition is that it creates new land . And negative effect is it takes away new lands .

The five (5) evidence of exogenic processes on Earth's surface include the following:

1. Weathering.

2. Stripping.

3. Erosion.

4. Mass wasting.

5. Deposition.

Exogenic processes can be defined as the processes that occur at or near the surface of planet Earth due to the action (influence) of exogenic forces or geomorphic agents.

The five (5) evidence of exogenic processes on Earth's surface include the following:

1. Weathering: the removal of various minerals from rocks causes depletion in oil and gas reserves that may be available for human consumption.

2. Stripping: it involves the removal of essential chemical elements and  components from precious stones and landform such as a mountain.

3. Erosion: this causes flooding and washing away of various soil nutrients and as such affects agriculture.

4. Mass wasting: it moves rock debris, soil nutrients, and regolith downward, which are substances that are useful for certain human activities such as during mining.

5. Deposition: it is a consequence of erosion and it result in the laying down of sediment on a landform or landmass.

This sometimes make the foundation of buildings stronger to withstand stress.

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Answer:

B. 3.12 x [tex]10^{-3}[/tex] m

Explanation:

From the given picture, it can be deduced that;

the diameter of the image of lumen = 25.0 mm

                                                      = 25.0 ÷ 1000

                                                      = 0.025 m

And,

magnification = [tex]\frac{diameter of the image of lumen}{actual diameter of lumen}[/tex]

But magnification = 8,and diameter of the image of lumen = 0.025 m.

So that;

8 = [tex]\frac{0.025}{actual diameter of lumen}[/tex]

⇒ actual diameter of lumen = [tex]\frac{0.025}{8}[/tex]

                         = 0.003125

Actual diameter of lumen of the blood vessel is 3.12 x [tex]10^{-3}[/tex] m.

Answer:

Photosystems are the functional units for photosynthesis, defined by a particular pigment organization and association patterns, whose work is the absorption and transfer of light energy, which implies transfer of electrons. Physically, photosystems are found in the thylakoid membranes.

Explanation:

The main functions of a photosystem are: they are a functional unit of photosynthesis, and they trap or release light.

Plants, algae, and cyanobacteria all have thylakoid membranes that contain photosystems. These membranes are found in the cytoplasmic membrane of photosynthetic bacteria as well as the chloroplasts of plants, algae, and other vascular organisms. The PSI and PSII subtypes of photosystems exist.

The functional components of photosynthesis are called photosystem, and they are identified by specific pigment organization and association patterns.

Therefore, the photosystem is responsible for absorbing and transferring light energy, which entails transferring electrons. The thylakoid membranes contain photosystem in terms of physical location.

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Answer:

methionine-proline-glycine-leucine-stop

Explanation:

Using an amino acids chart, you can line up the 3 bases in each section to find the protein chain that corresponds. The stop at the end marks the end of protein synthesis, which ends the sequence.

The compound comprising carboxylic and amino groups is called amino acids. They are vital for the formation of proteins in the cells.

Sequences are read in the three pairs of codons in the form of triplets to form a form an amino acids sequence.

The amino acid sequence that will be formed from the given sequence AUG-CCC-GGA-UUA-UAG will be:

methionine-proline-glycine-leucine-amber

Therefore, Met-Pro- Gly- Leu- Amber is the amino acid sequence.

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Switching from coal to natural gas or nuclear energy to generate electricity will lessen human impacts on the global climate.

It is the changes to climate brought about by anthropological emission of greenhouse gases.

Greenhouse gases are emitted from human actions such as the burning of coal, removal and burning of forest layers, etc.

Thus, in order to lower human impacts on climate, replacing activities such as the burning of coal with clean technology such as nuclear energy to generate electricity would go a long way.

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Answer:

to intimidate his predators

Explanation:

The reasons would a male peacock spread his tail feathers to intimidate rival males. Thus, option E is correct.

For natural selection to occur, four basic conditions are necessary:

Natural selection has been known as the evolutionary mechanism proposed by Charles Darwin, who stated that the environment acts as a selector of characteristics, perpetuating the organisms best able to survive in a given place.

Genes that encode bright feathers give an advantage to the male peacocks over other males which do not have an equally bright assortment of feathers, increasing the individual's reproductive success. This results in the advantageous genes such as of bright feathers recurring over the generations and remaining a part of the gene pool.

Therefore, The reasons would a male peacock spread his tail feathers to intimidate rival males. Thus, option E is correct.

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Answer: OMG THIS IS SOMETHING I KNOW ABOUT!! OKAYYY. When the global temperatures affect the polar ice, the ice start to melt. If the ice melts then the polar bears could loose their home, and would not have any other place to live. Polar bears need a very cold place to live, because it's suitable for them. Umm also The polar ice could eventually flood some parts of the earth causing a global flood!!

Explanation: Also if they have any left, sign the petition to save the polar bears.... they need help fastt! also, they (trump) want to drill into the ice to get some type of "oil" out the ice!! Please they need help!

The process is identified by number 1 in the diagram and where in the cell does this process occur is translation, at the ribosome. Thus option 3 is correct.

Translation is defined as the process by which a messenger RNA (mRNA) molecule's sequence is converted into an amino acid sequence during protein synthesis.

It is also be defined as when DNA is converted to RNA in the cell's nucleus, the process through which ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins. Gene expression refers to the entire process.

Initiation, elongation, and termination are the three phases of an mRNA molecule's translation by the ribosome.

Thus, the process is identified by number 1 in the diagram and where in the cell does this process occur is translation, at the ribosome. Thus option 3 is correct.

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Answer:

Climate and vegetation vary with latitude and altitude of an area. Latitude measures distance from the equator; altitude measures elevation above sea level. ... Deserts have little precipitation and little vegetation. They are found in tropical, temperate, and Polar Regions.

The climate and vegetation may significantly vary with the latitude and elevation. This is because as elevation increases the temperature decreases gradually that do not favor the actual growth of vegetation.

Climate may be defined as a type of weather conditions that are persuading in any geographical location for a long period of time. In a more simple sense, it is characterized as the long-term pattern of weather in a particular area.

Latitude estimates the distance from the equator part of the earth and goes through the tropical, temperate, and colder regions of the earth. The vegetation is typically reduced with increasing the altitude or elevation with respect to the sea level.

It may also be noticed that the vegetation may alter with respect to the geographical location of the whole earth. It was never found to be completely absent.

Therefore, the climate and vegetation may significantly vary with the latitude and elevation.

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Answer:

to predict the outcomes of genetic crosses.Punnett squares can be used to predict and compare the genetic variations that will result from a cross.

hope this helps!!:)

Explanation:

Answer:

Primase

Explanation:

Primase: the enzyme responsible for initiating synthesis of RNA primers on the lagging strand during DNA replication.

Answer:

Primase

Explanation:

Answer: B because leaves curling when touched is a negative tropism

Explanation:

Answer:

What two main characteristics are used to classify air masses? Temperature and humidity are two characteristics used to classify air masses.

The fundamental structure of the membrane is the phospholipid bilayer , which forms a stable barrier between two aqueous compartments . ... Proteins embedded within the phospholipid bilayer carry out the specific functions of the plasma membrane , including selective transport of molecules and cell - cell recognition .

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Answer:

Oxygen, origin of plants and chloroplast.

Explanation:

The oxygen present in our atmosphere was generated by various species of cyanobacteria during the Archaean and Proterozoic Eras. origin of plants on the earth is other great contribution of the cyanobacteria. The chloroplast which is present in plants due to which they make their own food is actually a cyanobacterium living within the plant's cells.

Answer:

The double dna to helix

Explanation:

Answer:

Cooper's hawk is a medium-sized hawk and largish for an Accipiter. Compared to related species, they tend to have moderate-length wings, a long, often graduated or even wedge-shaped tail and long though fairly thick legs and toes.

if it's infects us it will be good or evil

Answer:

J. promoter

Explanation:

The promoter is the name of the binding site of RNA polymerase in eukaryotes.