122.90 to Sciencetific notation
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HELP HELP
how could you increase the rate of the reaction in part C of the above image? select the best response based on the information given
a. expose the reaction to sunlight
b. decrease the amount of reactiant(s)
c. change the temperature
d. increase the amount of enzymes
Answer:
c) change the temperatureTo increase the rate of the reaction in part C of the above image, change the temperature. Thus option C is correct.
what are the factor affecting the rate of reaction ?
At higher concentration of reactants, more collisions leads to increase the rate of the reaction.
Changing the pressure can change the concentration leads to high number of collisions caused increases the reaction rate.
If a reactant is a solid and grinding of these reactants can increase the surface area, will lead to faster the reaction.
Increase in temperature, means molecule have higher average kinetic energy and more collision causes an increase in the reaction rate.
The medium in which the reaction occurs is another factor like in aqueous solution the reaction go faster.
Catalysts lower the activation energy followed by increase the rate of a chemical reaction.
Thus option C is correct.
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Number the steps of Darwin's theory in order.
Answer:
1.Natural Selection
2.Overproduction
3.Variation
4.Struggle for existence
The steps in the theory of Darwin should be performed in the following order: Overproduction, Natural Selection, Variation, and the Fight for Existence.
Thus, the following sequence can be used to number the steps in Darwin's theory, which involves variation where people within a population display innate variances in their attributes. This step is followed by overproduction, when an organism produces more children than the environment can sustain, resource competition results.
People within a population battle for survival because of overproduction and a lack of resources. The last step is natural selection, which involves people having advantageous mutations that suit their environment better have a higher likelihood of surviving and reproducing successfully.
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please help
Why would bacteria, plant and animal cells need to be different?
Answer:
Because each the cells would have different functions on different organisms.
Explanation:
Bacteria cells are usually prokaryotic which means that it is only composed of one cell. The single cell already has everything it needs so therefore, it isn't as complex as plant and animal cells.
Plants are autotrophs and produce their own food through photosynthesis. Plant cells would have a large vacuole, cell wall, chloroplasts, unlike animal cells.
Animal cells have all the cell organs that plant cells except a large vacuole, cell wall, and chloroplasts. Animal cells also have lysosomes in which plant cells don't.
Of the thorns or spines and the greeny pigmented hard part of the cactus are the leaves and why?
The spines of a cactus are exactly not the leaves, but they are the solid hard part that reduces the rate of transpiration, so as to level the water constant in the cactus' body. They are important as it can reduce the animals from eating the cactus.
However, camels have thick jaws and can eat cactus easily .
Hope it helps you...
(Answered by Benjemin)
Write any four adaptations observed in polar bear and explain how these
adaptations are useful in its survival.
Answer:
The polar bear
Their adaptations include: a white appearance - as camouflage from prey on the snow and ice. thick layers of fat and fur - for insulation against the cold. a small surface area to volume ratio - to minimise heat loss.
PLEASEE HURRY I NEED HELP
We have studied the characteristics of life. An important characteristic of life is described in
this passage. What is it? Provide evidence from the passage.
Answer:
Sensitivity
Explanation:
The passage is all about observation, about seeing, hearing perseiving, and that is what the term sensitivity is mostly about
27 Scientists are ____about the subjects they study.
Answer:
27 Scientists are learning about the subjects they study.
27 Scientists are teaching about the subjects they study.
Explanation:
What else would scientists do?
what is cell? write it's functions??
1) what is cell ?
Ans=> In biology, the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. ... Parts of a cell. A cell is surrounded by a membrane, which has receptors on the surface
2) Write it's functions ?
Ans => They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function
hope it is helpful to you ❤️How does water’s molecular structure affect the solubility of substances on Earth? Provide a real-world example.
Answer:
The Anartica iceburgs
The polar covalently bonded water molecules act to exclude nonpolar molecules, causing the fats to clump together. The structure of many molecules can greatly influence their solubility. Sugars, such as glucose, have many hydroxyl (OH) groups, which tend to increase the solubility of the molecule.
The water molecule has an irregular distribution of its electrical charges and it is this irregularity that allows this molecule to be polar and able to solubilize other polar substances.
This can be explained as follows:
The water molecule is formed by two hydrogen atoms and one oxygen atom.These atoms share electrons with each other, forming covalent bonds.The electromagnetic force of the oxygen atom is much greater than the electromagnetic force of the two hydrogen atoms.This causes the hydrogen electrons to be attracted by oxygen, which promotes a displacement of these electrons.This displacement causes the hydrogen electrons to be closer to oxygen than to hydrogen.This creates an irregular electronic distribution in the water molecule, this creates the polarity of the molecule, causing the water to become a polar substance and a dipole.With the irregularity of the electrical charge, water becomes a substance that can form bonds with positive and negatively charged molecules, which guarantees the solubility of a wide range of substances.
Some water-soluble substances are acids, ionic solids, gases, sugars, proteins, salts, among others.
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¿Cuál es la unidad básica y funcional del sistema nervioso?
Answer:
here u go
Explanation:
Las neuronas son las unidades útiles fundamentales del sistema sensorial, y crean signos eléctricos llamados posibilidades de actividad, que les permiten enviar rápidamente datos a distancias significativas. Glia son igualmente cruciales para el trabajo del sistema sensorial, sin embargo, funcionan generalmente mediante el apoyo a las neuronas.
What are the three first eons collectively known as?
Answer:
Hadean, Archean, and Proterozoic Eons are currently all lumped together and they are all called/referred to as the Precambrian
If you use a millimeter to measure something you are measuring what?
Distance
Mass
Time
Volume
Answer:
the anwer is distance option a or 1
Which of the following is NOT a characteristic of all living things?
Answer:
Ability to move is the answer
Answer:
ability to move
Explanation:
If chocolate is made from a cocoa bean which is from a fruit, is chocolate made of fruit?
Answer:
Yes, i would say so. Fruit is good for you, chocolate is good for you, chocolate is a fruit.
Answer:
YesExplanation:
Chocolate is made out of fruit because it came from Cocoa beans. Cocoa beans are also use in making coffee.[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
Explain how populations of bacteria evolve to become antibiotic-resistant. (Hint: Some bacteria are naturally more resistant to antibiotics and some are easily killed by antibiotics.)
Answer:
adaptive evolution by natural selection of best suited variations and mutations by losing genetic material
Explanation:
♡ Observations... ! I NOTICE... ? I wonder... Think = Reminds me of...
Answer:
???? whats this and where is the image
HELPP!! (40 pts) Explain how the earth's core has impacted human life. Use evidence from the
text to support your answer.
Answer:
The earth’s core affects the shape of the ground we
walk on.
Explanation: The earth’s core is responsible for
not only the Rocky Mountains, but the formation of cities and societies that have lived there for
generations, such as Rocky Mountain National Park. It’s responsible for mountains that serve as barriers,
bringing to life divisions in culture unique to each side, while also posing a challenge to be crossed and
burrowed into, spurring on scientific innovation in the process.
The Earth's core has impacted human life in a variety of ways. As it is responsible for the generation of the earth's magnetic field and contains a history of the planet.
What do you mean by the Earth's core?The Earth's core may be defined as the innermost layer of the Earth which is very hot and dense.
The Earth's core is responsible for any geographical locations like mountains, deserts, biodiversity hotspots, rivers, etc. It gives a structural appearance to the Earth. Human life is widely impacted and depends on all of these locations for their needs. All these geographical locations determine the climate of that particular area which is responsible for those people who are living at that location. Human life takes all its requirements from this core surface only.
Therefore, the Earth's core has impacted human life in a variety of ways. As it is responsible for the generation of the earth's magnetic field and contains a history of the planet.
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Four types of macromolecules
Answer:
carbohydrates, lipids, proteins, and nucleic acids.
Explanation:
Carbohydrates are the primary source of energy. Some are structural, such as cellulose.
Proteins have a wide variety of functions. They make up structures, and regulate chemical reactions as enzymes.
Nucleic acids, DNA and RNA, are involved in heredity and the production of proteins.
Lipids can be structural, such as the phospholipids in the plasma membrane, and they are a source of energy.
How well do nonpolar molecules dissolve in water?
Answer:
they do not dissolve easily
Answer:
Nonpolar molecules do not dissolve easily in water. They are described as hydrophobic, or water fearing. Water's hydrogen bonds create an environment that is favorable for polar molecules and insoluble for nonpolar molecules
Biology PLESE HELPPPPPPPPPPPP
Answer:
disect
Explanation:
What type of tissue is shown in the image above?
Answer:
osseous tissue is shown in the image above.
Answer:
It is osseous tissue.
Explanation:
They are same tissues.
blank makes up cell membranes
Phospholipids : This makes up the bi-layer which is the membrane's basic structure and has great control over what can enter and exit the cell, due to their hydrophobic tails and hydrophilic heads.
Cholesterol : This also controls entry and exit of substances as it also exhibits hydrophilic heads and hydrophobic tails. It also stabilises the membrane and affects its fluidity (the more there is, the more fluid is the membrane.)
Glycolipids : Those can act as receptor molecules (essential for cell-signalling), antigens and in cell-adhesion
Answer:
glycerophospholipids
Explanation:
With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains.
If this is correct please give me Brainliest.
What is an analogous structure?
A. a structure that has the same form but
different functions like an arm, fin, and wing
B. a structure that has the same function but
different forms like the wing of a bee and wing of
a bat
C. a structure that used to serve a purpose but
does not have a purpose in modern species
D. a structure that is similar in all developing
embryos
transport of oxygen in the blood is carried out by the cells known as; A.Leukocytes B.Erythrocytes C.Thrombocytes D.Hepatocyte
Answer:
Erythrocytes. They are red blood cells that travel in the blood. Their characteristics of being red, round, and like rubber give them the ability to complete their specific functions. They carry oxygen from the lungs to the body and bring carbon dioxide from the body to the lungs.
Explanation:
what are the names of the three domains?
Answer:
the Archaea, the Bacteria, and the Eucarya
How are globes used?
Answer:
Globes are used to look at places, without a device. You can think of a globe as a map of the world wrapped up into a ball. If you wanted to look at the United States, you could twist the globe, and see it, and surrounding places like Canada or South America.
In a different case, they are used for school geography. The students are asked to find a place and point to it on the globe.
THREE catastrophic results of radiation on the Environment
Answer:
adverse effect on human and enviroment.
Explanation:
UV radiation generates ground-level ozone (o3) and dome particulate matter( PM frequently called aerosol ) that include nitrate, silfate and organic aerosols causing adverse effects on humans and the environment. UV promotes the formation of hydroxyl radicals that act as cleaning agents for the troposphere.
Three catastrophic results of radiation on the environment are :
Generation of ground level ozone ( O₃) which degrades the environmentFormation of organic Aerosol which poses health threat to humansFormation of hydroxyl radicals which affects the troposphere.The results of heavy UV radiation on the environment can lead to the degradation of the environment and pose a significant health threat to Humans as well in the environment. some of the results of radiation includes the formation of organic Aerosol which can pose health threat ( Lung diseases ) to humans. while hydroxyl radicals acting as cleaning agents in the troposphere damages the atmosphere as well.
Heavy atomic blasts is an example of heavy radiation which can lead to skin burns and Cancer in Humans.
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The sperm of the gametophyte in moss and ferns require _________ as transport for fertilization to occur.
A. bees
B air
C birds
D water
Answer:
D water. (so sorry if it's wrong)
Answer:
D. water
Explanation:
1. How far do the penguins travel to feed?
Answer:
Up to 7,000kilometers in 8weeks
