Answer and Explanation:
Coal is burned: Electrical Centrals burn coal with which they get enough heat. The coal might be pulverized to increase the effective combustion area. Water boils, creating steam. The heat generated by the burning coal is used to create water vapor that rises and moves turbines. This occurs when water passing through some tubes is heated by the hot gases coming from the burning coal, turning it into high-pressure steam. Moving steam turns turbines. The high-pressure steam is taken to turbines where it expands and moves the rotor which is the moving part of the turbines. Turbines generate electrical energy. The turbines are connected to a generator that transforms the energy produced by the rotor into electricity.Answer:
Coal is burned
Water boils, creating steam
Moving steams turns turbines
Turbines generate electrical energy
An aquarium with a glass lid is an example of an isolated system.
true
false
Answer:
The answer is false!
Explanation:
I took the K12 science quiz. I hope this helps! Have a blessed day! :)
The statement "An aquarium with a glass lid is an example of an isolated system" is false as light, air, and heat can transfer through the glass lid.
What is an aquarium?An aquarium is an artificial place that is made for putting fish and other water animals in houses buildings and other places. Aquariums are made up of glass so can we, so we can see the fish's aquarium also have oxygen pumps the water also changed in the aquarium from time to time and. The aquarium is kind of decorative.
Aquariums are made up of glass, and they are open from the top so that fish can get air.
An aquarium is not an isolated system as light year and heat can transfer through the top and fishes are living organisms that need an open system to breathe and live.
Therefore, the statement is false.
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Which type of cells are being
displayed?
Answer:
These are locking like staphylococcus...!
Explanation:
Meristamatic cells of onion root tip are displayed in the picture. This renders the most desirable and suitable raw material to study the different stages of mitosis.
What are meristematic tissue?A meristem is a particular kind of tissue that can be found in plants. It is made up of cells that have not undergone differentiation and are able to divide. Meristematic cells have the potential to differentiate into all of the other types of tissues and organs that can be found in plants. These cells will continue to divide until they reach a certain point, at which point they will begin to differentiate and will no longer be able to divide.
Additionally, meristematic tissue is responsible for the generation of secondary tissues like wood and cork. Both primary growth (expansion) and secondary growth (thickness) contribute to the plant's overall development.
Apical meristems are the cells that are responsible for the growth of the plant's primary body as well as the extension of its roots and shoots. Because they are the cells that are responsible for secondary growth, also known as an increase in stem girth and thickness, lateral meristems are also referred to as secondary meristems.
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The ultimate goal of sustainable development is to limit the future use of resources b. meet current and future resource needs C. increase the current use of resources d. reduce resource use but increase supplies
The correct answer is B. Meet current and future resource needs.
Explanation:
Sustainability implies an equilibrium between the natural resources available and the resources humanity requires. This equilibrium is reached when the natural resources extracted from nature are enough to satisfy human needs without depleting the resources or causing these are not available in the future. In this context, the goal of sustainable development is to make sure now and in the future resource needs are meet (option B). Moreover, this is possible through actions such as recycling, reducing deforestation, creating environment-friendly technologies, among others that reduce the depletion of resources or preserve the environment.
Answer:
B
Explanation:
meet current and future resource needs
Which of the following statement is true:
Reptiles do not live very long.
Amphibians and reptiles are born similar in size.
Amphibian and reptiles are similar vertebrates.
Amphibians and reptiles eat identical organisms.
Answer:
C or D
Explanation:
Answer:
Amphibians and reptile are somewhat alike and they are not born the same size so I am leaning more towards c
Explanation:
You are doing lab work with a new species of beetle. You have isolated lines that breed true for either blue shells and long antenna or green shells and short antenna. Crossing these lines yields F1 progeny with blue shells and long antenna. Crossing F1 progeny with beetles that have green shells and short antenna yields the following progeny: Phenotypes Number Blue shell, long antenna 82 Green shell, short antenna 78 Blue shell, short antenna 37 Green shell, long antenna 43 Total 240 Assuming that the genes are linked, what is the map distance between them in m.u.
Answer:
The map distance = 33.3 cM
Explanation:
Let us take,
BBLL as blue shell, long antenna .........Parent 1
bbll as green shell, short antenna .......... Parent 2
Then, cross between parent 1 and parent 2, which is
BBLL X bbll
The F1 generation will be heterzygous
BbLl as blue shell, long antenna ...... F1 offspring
By the test cross,
BbLl X bbll :
given,
BL/bl = 82 : Parental
bl/bl = 78 : Parental
Bl/bl = 37 : Recombinant
bL/bl = 43 : Recombinant
Total = 240
Recombination frequency = { [tex]\frac{Number of recombinants}{Total offspring}[/tex]}*100
= (80/240)*100 = 33.33 %
Thus, the map distance = 33.3 cM
T or F? The mantle surrounds the iron core
Answer:
T :)
Explanation:
Which statement describes the motion of the sun?
A. The sun rotated on an axis.
B. The sun does not rotate.
C. The sun moves around the earth.
D. The sun orbits the solar system.
I forgot the answer and need help.
Explanation:
d because i am pretty sure i have seen that question alot
Answer:
The answer is B
Explanation:
because we move around the sun this sun doesn't move
The process by which animals use oxygen to convert food to energy is called
Answer:
Respiration
Explanation:
Respiration is the process by which animals use O2 to get energy from food. So plants take in CO2 from the air and produce O2, and animals take in O2 from the air and produce CO2
Someone please help ! Will give brainliest !
tbh I'm pretty sure this is right
This explains how one type of rock changes into another type of rock
A - the mineral cycle
B - metamorphism
C - the rock cycle
Answer:
B
Explanation:
How do microorganisms contribute to the health and characteristics of soil?
Plz help!
Answer:
decomposition
Explanation:
microorganisms help decompose, or break down, other organic matter, that is no longer needed. For example, a dead critter on the ground.
Which are characteristics of eukaryotic organisms? PLZ HELPP
Answer:
Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes.
Explanation:
PLEASE HELPP!!!!
Describe the water cycle in a brief paragraph. Use terms that you know are associated with the water cycle.
Answer:
The water cycle or hydrologic is a continuous cycle where water evaporates, travels into the air and becomes part of a cloud, falls down to earth as precipitation, and then evaporates again. ... As clouds move up and over mountains, the water vapor condenses to form precipitation and freezes.
Match the terms on the left to the correct definitions *
5 points
Part of a A molecule
chromosome that makes
that is passed
up a
from parent to component of
offspring a ribosome
A biomolecule
that is made
of one or more
amino acids
and that
performs a
specific
function
A nucleotide Guanine,
polymer that cytosine,
uses uracil,
deoxyribose adenine, or
sugar thymine
protein
gene
DNA
RNA
Nitrogen
base
554Answer:544
gfnknmfdjkfrgfnfewnm f,m dsmnfdl;skgfkldskmlglkmrfvdsf
redewn d dnlsfnmddmffmf,dsfdfExplanation:er44dfdsfdsf
fdnjifljdkfdjkldfkldfkjlfdfdskfdknflkndlkfldnsfn
10. In the process of photosynthesis, chlorophyll serves as ___.
a. An end product
b. A raw material
c. An energy converter
d. A hydrogen acceptor
Answer:
c. an energy converter
Explanation:
What conclusion is best supported by the selection above ? NUMBER 2
Answer:
Arginine and Lysine play same role in membrane proteins.
Explanation:
The scientist have tested Lysine and Arginine to get information about their properties. The test lead to conclusion that both are amino acids which are high in aqueous values which lead to high electrostatic interaction. These amino acids play important role in membrane proteins.
Herbicides are being used to kill weeds in a nearby field. The plants absorb the herbicides from the soil. Which organelle
in the plant will most likely store the absorbed herbicide waste?
ribosome
vacuole
chloroplast
mitochondrion
Answer:
The answer is B. Vacuole
Explanation:
As the plants have no used for the herbicides, it will be transported to it "waste bin" which is the Vacuole.
Definition of Vacuole: Vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance. Sometimes a single vacuole can take up most of the interior space of the plant cell.
Also, completed a test with same question, and got it right.
Vacuole organelle in the plant will most likely store the absorbed herbicide waste.
What is Vacuole?
Animal, plant, bacterial, protist, and fungal cells all include vacuoles. It has the size of a giant sac and is one of the biggest organelles found in cells.
Vacuoles are bordered by a thin membrane and filled with fluid and any molecules they take in.
This is their basic structure. Because both are membrane-bound sacs, they resemble another organelle called vesicles, however vacuoles are substantially bigger than vesicles and are created when numerous vesicles fuse together.
Therefore, Vacuole organelle in the plant will most likely store the absorbed herbicide waste.
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Which of the following is a characteristic of levelized cost of energy (LCOE)?(1 point)
It is the maximum price per kWh at which electricity must be sold in order to break even over the lifetime of a power-generating project.
It is the minimum price per kWh at which electricity must be sold in order to break even over the lifetime of a power-generating project.
It is the minimum amount of power that can be produced per dollar over the lifetime of a power-generating project.
It is the maximum amount of power that can be produced per dollar over the lifetime of a power-generating project.
Answer:
It is the minimum price per kWh at which electricity must be sold in order to break even over the lifetime of a power-generating project.
Explanation:
It is the minimum price per kWh at which electricity must be sold in order to break even over the lifetime of a power-generating project.
What is the levelized cost of energy LCOE ?The levelized cost of energy (LCOE), or levelized cost of electricity, is a measure of the average net present cost of electricity generation for a generating plant over its lifetime. It is used for investment planning and to compare different methods of electricity generation on a consistent basis.
Thus, option "B" is correct.
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What gases are responsible for most of the pressure exerted by the atmosphere on the surface of Earth?
Answer:
nitrogen and oxygen
Explanation:
volume makes up less than %1
The gases that contribute most to the atmospheric pressure are required.
The gases which exert the most pressure on the surface of Earth are nitrogen and oxygen.
The composition of gases present in the atmosphere of Earth is
Nitrogen [tex](N_2)[/tex] = 78.084%
Oxygen [tex]O_2[/tex] = 20.946%
Other gases = 0.97%
The other gases include carbon dioxide, argon, neon, helium, methane, hydrogen and krypton.
So, the gases which exert the most pressure on the surface of Earth are nitrogen and oxygen.
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Explain why habitats with high biodiversity tends to contain narrow ecological niches and white habitats?
Answer:
because they reduce interspecific competition
Explanation:
Narrower niches are known to be more specific and limited compared to broader niches, which are generally less specific and less limited. The species that live in broad niches are named generalists because they are able to withstand different conditions. A narrow niche is often correlated with reduced overlap and thus tends to reduce interspecific competition. For example, coral reefs consist of a wide variety of species (including anemones, sea sponges, sea fans, brain corals, etc) which have narrow niches, thus showing high biodiversity.
Assume that plant height is determined by a pair of alleles at each of two loci (A and a, B and b) that are additive in their effects. Further assume that each allele represented by an uppercase letter contributes 6 feet to height and that each allele represented by a lowercase letter contributes 2 foot to height. If a plant with genotype AaBB is crossed to a plant with genotype aaBb, what heights are expected in the progeny
Answer:
16 feet, 20 feet, and 12 feet
Explanation:
Uppercase allele = 6 feet
Lowercase allele = 2 feet
First, let us look at the outcome of the cross between AaBB and aaBb.
AaBB x aaBb
Progeny:
4 AaBB = 6+2+6+6 = 20 feet
4 aaBB = 2+2+6+6 = 16 feet
4 AaBb = 6+2+6+2 = 16 feet
4 aaBb = 2+2+6+2 = 12 feet
The heights expected in the progeny are 16 feet, 20 feet, and 12 feet.
To protect our rights, the Constitution divides powers between the federal government's branches. This principle is called "separation of powers." Each branch of government holds distinct but equal authority. For example, Congress has the power to create laws, while the president has the power to execute these laws. The preamble states the purpose of "securing the Blessings of Liberty." Our freedoms are secured when power is not concentrated in any single branch of government. This helps our government to provide for our needs while respecting our rights.
Answer:
Explanation below
Explanation:
Separation of powers is very important and crucial in federal type of government. This is helpful because it decentralized the power, and prevent one arm of government from being a dominating force.
It will help the government to provide the necessary and needed infrastructure for the citizens. This is because the conclusion will be reached with approval of all the arms of government.
Explain how photosynthesis and cellular respiration work together?*
Photosynthesis and Respiration both make energy
One process give molecules to the other process
Photosynthesis is more effective than respiration
Answer: one process gives molecules to the other process
Explanation:
Which of the Following Statements about enzymes is Not True
A( enzymes work best at a specific pH
B( all enzymes have the same shape as their substrates
C( enzymes are proteins
D( the shape of an enzyme allows it do its job
Describe an example of a relationship between a cell organelle and a task a cell must perform
Answer: These organelles are like the organs in a human and they help the cell stay alive. Each organelle has its own specific function to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA. Eukaryotes also have a Golgi apparatus that packages and distributes proteins.
An example of a relationship between a cell organelle and a task a cell must perform is: Mitochondria and transformation of energy by a cell.
A cell refers to the fundamental functional and smallest unit of life in all living organisms.
According to their cell type, all living organisms are mainly divided into two (2) main groups and these include;
Unicellular organisms. Multicellular organisms.Cell organelles can be defined as the organs (workers) that are saddled with the responsibility of performing various tasks or functions for the survival of a living organism. Some of the cell organelles found in living organisms include the following:
Nucleus.Cytoplasm.Cell membrane.Golgi apparatus.Mitochondria.Mitochondria is usually referred to as the power house of a cell because it is mainly responsible for the provision and transformation of all of the energy required by living organisms.
In conclusion, an example of a relationship between a cell organelle and a task a cell must perform is the provision and transformation of energy by mitochondria for the optimum performance of a living organism.
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Describe the role of ATP and enzymes in the underlying molecular processes, including what happens to the free energy of some of the molecules involved.
Answer:
Role of ATP and enzymes are very important.
Explanation:
The role of ATP and enzymes are very important in the process of digestion because enzyme speedup the chemical reaction such as digestion without using in it and when the break down of micromolecules such as glucose occurs, energy is produces in the form of adenine tri phosphate (ATP) that is used in different activities whereas the free energy of some molecule is utilized in doing some useful work.
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A.) The middle lamella _____.
1.)surrounds and protects the chloroplast
2.)stores water inside the plant cell
3.)attaches plant cells to one another
4.)captures sunlight for use in photosynthesis
B.)Organisms cannot make their own food without _____.
1.)cell membranes
2.)cell walls
3.)chloroplasts
4.)vacuoles
C.) Chloroplasts _____.
1.)provide structure and support for plant cells
2.)are also found in animal cells, but they are much smaller
3.)are found inside the mitochondria
4.)allows plants, algae, and certain bacteria to make their own food
D.) Vacuoles are important for _____.
1.) energy production
2.) protection
3.) storage
4.) photosynthesis
E.) Which of the following statements is true?
1.) The rigidity of a cell wall causes plants to be sedentary.
2.) Primary cell walls are more rigid than secondary cell walls.
3.) Since they have cell walls, plant cells do not have cell membranes.
4.) A wilting plant will have a full central vacuole.
F.) Choose all the answers that apply.
Which of the following are only found in plant cells?
1.) cell membranes
2.) chloroplasts
3.) cell walls
4.) vacuoles
Answer:
A: 3.)attaches plant cells to one another
B: 3.)chloroplasts
C: 4.)allows plants, algae, and certain bacteria to make their own food
D: 3.) storage
E: 1.) The rigidity of a cell wall causes plants to be sedentary.
F: 2.) chloroplasts and 3.) cell walls
Explanation:
I got a 100 on this assignment i know all of these answers are correct
In physics, what is a black body?
Answer:
Blackbody, in physics, a surface that absorbs all radiant energy falling on it. The term arises because incident visible light will be absorbed rather than reflected, and therefore the surface will appear black. The concept of such a perfect absorber of energy is extremely useful in the study of radiation phenomena.
genotype and phenotype of 4 o'clock flowers
Answer:
genotype:All of the the offspring are RW.
phenotype:All of the offspring are pink.
Which is required for the light-independent reactions in photosynthesis to occur?
wo
Answer: require light energy and water, and the L-IND reactions require ATP, NADPH and CO2.
Explanation: