Answer:
When the sound waves modulate a beam of light, the sound track, which may be of variable density or of variable width, is a photographic record of the varying light.
Explanation:
In motion-picture technology, the sound track ,narrow band, usually along the margin of the film, that carries the photographic or magnetic sound record. For sound reproduction, a beam of light is passed through the sound track onto a photocell connected, through an amplifier, to a loudspeaker. This optical system is the basic plan of sound reproduction in sound motion pictures. In stereophonic sound recording, a number of such bands may be used on the same film.
The Sun is a natural source for visible light waves and we can see the reflection of this sunlight off the objects around us. The color of an object that we see is the color of light reflected. All other colors are absorbed. Light bulbs are another source of visible light waves.
What are the two classes of pure substances?
A. Atoms and molecules
B. Solutions and mixtures
C. Elements and compounds
D. Liquids and gases
Elements and compounds
The two classes of pure substances are Elements and Compounds. An element is a pure substance made from a single type of atom and a compound is a pure substance made from two or more different elements that are chemically combined.
The two classes of pure substances are: Elements and Compounds. These are both characterized by having a uniform and definite composition that distinguishes them from mixtures.
Elements are pure substances that are made from a single type of atom. For example, the element Carbon consists entirely of carbon atoms. An element cannot be broken down into any other substance.
Compounds are pure substances that are made from two or more different elements that are chemically combined. For example, water is a compound made from hydrogen and oxygen. Compounds can be broken down into their component elements via chemical reactions.
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a certain atom has a atomic number of 4 how many protons does it have ?
It has 4 protons because the atomic number is the number of protons.
This element would be beryllium.
10 because i said it is supposed to be
Select all of the answers that apply. Which regions make up the Sun's atmosphere? photosphere corona core radiative zone chromosphere convective zone
Answer:
Corona, chromosphere and photosphere.
Explanation:
Sun's atmosphere consists of three layers. These are namely: corona, chromosphere and photosphere.
Corona is the outer most layer of atmosphere of sun and is seen during total solar eclipse.
Chromosphere is present between corona and photosphere. It serves to conduct the heat from core of sun to the corona.
Photosphere is the inner most layer of sun's atmosphere and emits light in form of visible light.
The Sun's atmosphere is made up of several regions, including the photosphere, corona, and chromosphere.
Explanation:The Sun's atmosphere is made up of several regions. The photosphere is the visible surface of the Sun and is the region where most of its energy is emitted as light. The corona is the outermost layer of the Sun's atmosphere, extending millions of kilometers into space. The chromosphere is a thin layer between the photosphere and the corona.
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Can someone please help me with these?
What is the elevation at point z
Answer:
need way more information
The elevation at point ' z ' is more than 220 meters but less than 240 meters.
That's as close as we can estimate it from the information on the contour map.
Why is it important for a cell to perform checks after DNA replication?
Answer:
It is important for a cell to perform checks after DNA replication because if errors are not taken away or removed from the regions inside a gene, then whats left of the proteins could possibly become influenced
Explanation:
Mutations that occur in DNA sequences during replication are___
A) usually harmless to the individual who inherits the mutation
B) usually harmful to the individual who inherits the mutation
C) mistakes that are always fixed through cellular processes
D) often related to disease
Answer:b
Explanation:not sure tho
What is the phenotype frequency?
A. The number of different traits an organism has
B. The distribution of traits in a population
C. The total number of genes in a population
D. All the types of alleles in a population
Answer:
B. The distribution of traits in a population
Which molecule listed in the chart is a protein
Answer: Molecule 4
Molecule 1 is a carbohydrate (sugar).
Function: short term energy storage and makes up cell wallsMonomers: monosaccharidesFound in: fruits, vegetables, bread, pastaMolecule 2 is a lipid (fat).
Function: long term energy storage, insulation, and makes up cell membranesMonomers: three fatty acids and one glycerolFound in: oils, fats, butterMolecule 3 is a nucleic acid.
Function: store genetic information used to provide directions for protein synthesisMonomers: nucleotidesFound in: all foodsMolecule 4 is a protein.
Function: speeds up chemical reactions, movement, transport, and defends against infectionsMonomers: amino acidsFound in: meat, milk, cheese, eggs, plantsMolecule 4 is the answere
The great white shark carchardon carcharias belongs to what genus?
Answer:
Carcharodon it is the answer hope it helps u
Answer: Lamnidae.
Explanation:The Lamnidae are the family of mackerel or white sharks. They are large, fast-swimming sharks, found in oceans worldwide.
A scientist helps a colleague do a better experiment by:
A. providing a warning about a common mistake.
B. filling in an incomplete data table with phony observations.
C. making fun of an awkward presentation of experimental results.
D. helping to formulate a conclusion without any evidence
Answer:
A.) providing a warning about a common mistake.
Explanation:
they help their student by recognizing a common mistake, and take action not to do it.
Hope this helped!
~Lunar Rose. Moon
Answer:
This is A providing a warning about a common mistake
Explanation: offering advice about how best to perform a standard procedure.
how are p waves and s waves similar? check all that apply
they shake the ground
they travel through solids
they arrive at the same time
they turn into surface waves
they vibrate from side to side
both P waves and S waves can travell through solids.In advance, P waves can travel through gasses too but S waves can't.
Answer:
The correct answers are they shake the ground and they travel through solids.
Explanation:
When an earthquake occurs, waves are sent in various directions across the earth's surface.
These waves can be classified into two types: Body Waves and Surface Waves.
Within body waves we have two types: primary (P) and secondary (S).
Both travel through the interior of the earth from the place where the earthquake occurred, to several directions that are in the distance.
The P waves are the fastest and the first ones, and the S waves are the ones that come later.
Both waves shake the ground, being that only the P waves do it in the direction in which they are directed and the S waves do so perpendicularly or transversally.
Also, both waves can move through solid materials, but only P waves can move through liquid materials.
what type of organisms undergo alcoholic fermentation?
The answer is yeast. I hope this helps : )
____________ power creates water reserves as well as renewable energy.
Answer: im pretty sure the answer to this is hydropower :)
Answer:hydro fills in the blank so it would be hydropower creates water reserves as well as renewable energy.
spongebob is known for his big round eyes(R) which is dominant over and oval eye shape(r) if he is heterozygous for hs round eye shape and marries a sponge lady with oval shape eyes what type of eyes might the kids have?
There is a 50% chance they will have heterozygous round and a 50% chance they have homozygous Oval eyes
Spongebob has big round eyes(R) which is dominant over and oval eye shape(r) and he is heterozygous for his round eye shape and marries a sponge lady with oval shape eyes then the kids have a 50% chance to have big round eyes and a 50% chance to have oval eye shape.
What is the eye shape of the kids?If spongebob has big round eyes(R) which is dominant over and oval eye shape(r) and he is heterozygous for his round eye shape and marries a sponge lady with oval shape eyes then the outcome will be Heterozygous round = Rr, Oval = rr.
So all possible genetic outcomes are Rr, Rr, rr and rr. So the chances of a child with round eyes are 50% and the chances of a child with oval eyes are 50%.
Hence, Spongebob has big round eyes(R) which is dominant over and oval eye shape(r) and he is heterozygous for his round eye shape and marries a sponge lady with oval shape eyes then the kids have a 50% chance to have big round eyes and a 50% chance to have oval eye shape.
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Am I right? I will mark a brainliest! :) there is a picture!
Answer:
i think you are correct
Explanation:
Which of the following tests can best help you classify a rock as sedimentary, metamorphic, or igneous?
A) Pour acid on it and see if it bubbles
B) Examine it’s layers, texture, and color
C) Hold a light to it and examine its luster
D) Examine it’s streak color
The answer is A
If this a multiple answer question the answers would be A and B
Answer: Option B
Explanation: The classification of rocks is done by studying about the texture, color and layers.
The texture of the rock can be defined as the minerals grains that constitute to form a rock. The grain vary in size and shape.
The color of different rocks differ and layers also differ based on the type of rock.
As the composition of metamorphic, sedimentary and igneous rock are different, their texture, color and size do differ. By examining these factors rocks can be differentiated.
A) they make up an organisms physical structure
B) they carry information about how an organism is put together and maintained
C) they store excess carbohydrates for later use
D) they provide an organism with usable energy in the form of ATP
The function of DNA is to hold the original genetic code for anything made in our bodies. It holds the code for RNA (DNA to RNA is called transcription). RNA: is single stranded. = ribose sugar + phosphate group + nitrogen containing base (either C,G,A, or U).so iguess its b
Answer:
the correct answer is B
Explanation:
Which characteristic of minerals may be described using words such as "bladed," "fibrous," "platy," or "dendritic"?
A. Lattice framework B. Crystal habit C. Luster D. Streak
Crystal habit may be described using words such as "bladed," "fibrous," "platy," or "dendritic".
Answer:
Option B, Crystal habit
Explanation:
The external shape of crystal is depicted by crystal shape. It is the characteristics of minerals to grow into characteristics shapes governed by their atomic structure thereby giving it a habit/
Some common crystal habits are – Granular, Bladed, Massive, Nodular, columnar, cubic, dendritic, etc.
These crystal habit can help us to visualize the geometric shape of a mineral. Not all mineral forms have a characteristic habit (crystl habit).
Hence, option B is correct.
A vaccine is a substance that is usually given to patients before they have a disease. The vaccine causes the patient's body to produce antibodies for the disease so that if antigens for that disease ever enter their body, the immune system can fight it off easily.
What does a vaccine contain that allows the body to do this?
A.
antibiotics and other medicines
B.
hazardous chemicals
C.
weak, dead, or partial antigens
D.
complete antigens and bacteria
Hi!
I would say C, weak, dead, or partial antigens because do you need to be introduced to the disease for your body to fight it.
Hope this helps!
Answer:
C = weak, dead, or partial antigens
logistic growth is characterized by a /an
Carrying capacity
In logistic growth., growth rate decreases when population increases..bcoz population reaches carrying capacity (no. Of individuals environment can support).
Hope this helps you frnd
Answer:
Increase in population size, reaching carrying capacity and less number of resources.
Explanation:
The logistic growth curve is characterized by S- shaped curve, when the presence of resources becomes less and population size increases. This causes population size to reach to carrying capacity.
Thus, it causes Logistic growth curve in S- shape. For example- Yeast. The yeast is used in preparation of alcohols.
According to the theory of isostasy, which statement must be true?
A. The asthenosphere has the same density as the lithosphere.
B. The lithosphere is denser than the asthenosphere.
C. The asthenosphere is denser than the lithosphere.
D. The lithosphere has the same density as the core.
Answer:
A
Explanation:
Isostatic equilibrium is used to state why some regions of the lithosphere have greater elevation than others. The crust ‘floats’on the‘liquid’ mantle below and different regions of the crust submerge into the mantle differentially depending on their local densities or weight. Heavier regions such as in mountainous region (like the Himalayas) are sunken deeper into the mantle that other regions. Every local region has its own local isostatic equilibrium.
Answer:
The correct option is Option C
i.e. Asthenosphere is denser than lithosphere.
Explanation:
Asthenosphere is the layer situated below the lithosphere.
Theory of isostasy says that the layers above the other layer must have lesser density. This has two explanations. Firstly, if its not hold, then the denser above layer would sink below the less denser bottom layer. Secondly, as we go inwards, the pressure increases. This leads to the lower layers have greater density. So, as Asthenosphere is situated below the lithosphere, it has higher density.
what natural resources are needed to make a pencil?
Graphite is used to make the writing cores of pencils. Wood (Softwood) Softwoods are coniferous trees, such as pines or spruces. Cedar wood is most commonly used in pencil production. The wood encases the graphite, making it easier for the writer to hold. -google definition
Answer:
Wood, Graphite, Natural Rubber, Iron
Explanation:
Seasons: Why do we have them? Gizmo assessment answer key
Answer:
because the earth revolves around the sun and the sun light hits the earth in different position
The earth spinning and moving then the sun hitting on different spots
Globulin is a protein. Which of the following organelles will assist in the synthesis of globulin?
Answer:
Rough Endoplasmic Reticulum
Explanation:
Rough endoplasmic reticulum (RER) is series of connected sacs that plays a key role in the synthesis of proteins as well as in their folding and transportation. Since Globulin is a protein, the Rough Endoplasmic Reticulum will assist in its formation.
Pests have always been a nuisance for farmers. The use of pesticides dramatically improved the success of crops; however, it has been found that some insects are no longer harmed by traditional pesticides. How would Charles Darwin, the man behind the theory of evolution by means of natural selection, explain this phenomenon.
Answer:
This phenomenon will be explained as the adaptation to Environment.
Explanation:
Adaptation is a process of natural selection where an organism changes its functional or structural parts to best fit in an environment. Adaptation is the basic concept of Darwin's theory of Natural Selection. It explain that why Organisms tend to change with the changing environment. In the given example, Although pesticides can improve the crop production however, eventually Pests developed resistance to the Pesticides and no longer got effected by them. So we can say that Pests have adapted themselves to survive in the presence of Pesticides.
Which statement is an example of a scientific theory? A. The amount that caffeine affects a person's heart rate differs based on the person's age. B. The Earth is the third planet from the Sun and has one moon, which orbits the Earth. C. Hummingbirds do not like the color white because they visit other colored flowers more often. D. All living organisms are composed of one or more cells, which came from pre-existing cells.
Answer:
Pretty sure it's A because people can redo this test as many times as needed to verify the answer.
Answer:
D. All living organisms are composed of one or more cells, which came from pre-existing cells.
Explanation:
took the test on
some species of ants live in Acacia trees getting a place to live in also protecting the plan of what relationship is this an example of
Answer:
mutualism
Explanation:
symbiosis that is beneficial to both organisms involved.
Which greenhouse gas is found in the highest concentration in the atmosphere?
Answer: Its water
Explanation:
The greenhouse gas that is found in the highest concentration in the Earth is carbon dioxide, as present is in Option A because the concentration of carbon dioxide is much higher and has been increasing at an alarming rate day by day.
What is a greenhouse gas?Carbon dioxide, that is a major greenhouse gas, is released into the atmosphere through a variety of natural activities and human activities, such as respiration, volcanic eruptions, the decomposition of organic matter, etc, carbon dioxide is very much needed by plants for photosynthetic activity, but the concentration of carbon dioxide in the atmosphere has increased by over 40% since the beginning of the industrial era, which leads to a further greenhouse effect.
Hence, the correct answer is greenhouse gas found in the highest concentration in the Earth is carbon dioxide, present in Option A among the other options.
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The question is incomplete, complete question is below
Which greenhouse gas is found in the highest concentration in the atmosphere?
A)carbon dioxide
B)OXYGEN
Which of these is an environmental effect of destroying wetlands?
the answer is c: because when we start logging animals lose the areas were they resided
Answer:
The answer is actually (C)
Explanation: