Based on how the particles are arranged, solids are classified into two types: crystalline solids and amorphous solids.
What is solid?Solid molecules merely pulsate and rotate in place. Ionic or strong covalent bonding holds solids together, and the attractive forces among atoms, ions, or particles in solids are very powerful.
A solid is a collection of atoms or molecules that are held together in such a way that they maintain a defined shape and size under constant conditions.
Solids are categorized into two types namely crystalline and amorphous. Amorphous solids are disordered, whereas crystalline solids are well ordered at the atomic level.
Thus, the two types of solids are crystalline and amorphous.
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When do cells take on their unique characteristics
In multicellular and unicellular creatures, cells behave differently. A multicellular organism has cells that are specialized to perform several functions that collectively maintain the organism, as opposed to a unicellular organism that relies on only one cell to conduct all of its functions.
The identical set of genes are present in every cell in an individual. But which proteins are produced by each sort of cell depends on which pattern of genes are turned on. The distinct protein composition of each type of cell enables it to carry out certain functions. They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks. Additionally, cells have the ability to replicate themselves and contain the body's genetic material. Each component of a cell has a different purpose.
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Which of these best describes the tiny leg bones that some whales have, which do not aid in their movement or serve any other function?
A. structures that grow and improve in function as they are used
B. structures that will become adaptations when the environment changes
C. structures that are a remnant of the adaptations that the whale's ancestors needed to survive on land
D. structures that function at certain times of the year or under certain conditions
Answer:
D is the correct answer to your question
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Question 2 (10) points
Which of the following is not a part of the cell theory?
- all living things are made of cells
- cells are non-living units that make up organisms
- cells come from existing cells
- cells are the basic units of structure and function in organisms
Answer:
C would be the correct answer
Explanation:
Answer:
Cells are non-living units that make up organisms.
Explanation:
Its the only one that answers the question.
Which of the following best describes the Catalase reaction?
Question 4 options:
Catalase breaks down two molecules of hydrogen peroxide into two water molecules and one oxygen gas molecule.
Catalase breaks down one molecule of hydrogen peroxide into two water molecules and two oxygen gas molecules.
Catalase breaks down one molecule of hydrogen peroxide into two water molecules and two oxygen gas molecules.
Catalase breaks down two water molecules into two molecules of hydrogen peroxide and two oxygen gas molecules.
The statement 'catalase breaks down two molecules of hydrogen peroxide into two water molecules and one oxygen gas molecule.' best describes the Catalase reaction (Option 1).
What is Catalase?Catalase can be defined as a specific enzyme that breaks down hydrogen peroxide (H2O2) to form water and molecular Oxygen (O2), whose chemical formula is 2 molecules of H2O2 ---(catalase)--> 2 molecules of H2O + one molecule of O2
In conclusion, the statement 'catalase breaks down two molecules of hydrogen peroxide into two water molecules and one oxygen gas molecule.' best describes the Catalase reaction (Option 1).
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Match the following vocabulary terms to their correct definitions.
Question 1 options:
Contains carbon compounds or comes from a once living organism.
Ex: coal
Two or more different atoms of an element chemically joined together
Two or more atoms of an element chemically joined together
Smallest object that retains the properties of an element.
Does NOT contain carbon.
Ex: minerals
1.
Atom
2.
Molecule
3.
Compound
4.
Organic
5.
Inorganic
Answer:
l;l';l';lk
Explanation:
l;[l;
invade human cells and then use the cell's genetic information and mechanisms to cause disease
Answer:virus
Explanation:Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue. Viruses are tiny infectious agents that rely on living cells to multiply
After trypsinizing your cell culture, you obtained 3 mL of total volume (cells + media). You need to dilute your cells 1:5, so how much media will you add?
A 1:5 dilution means 15 mL of the media will be added.
Dilution problemA 1:5 dilution of a substance means that for every 1 unit of the substance taken, 5 units of the diluents must be added.
In this case, the substance to be diluted has a total of 3 mL as volume. The diluent in this case is the media. In order to calculate the total volume of the media that will be added, the volume of the stock is multiplied by a factor of 5.
Thus:
Volume of diluent = volume of stock x 5
= 3 x 5
= 15 mL
This means that a total volume of 15 mL of the media will be added to the cell culture.
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- Consider a 200-cm3 (cc) soil core that weighs 260 g when oven-dried and 360 g when saturated. The
core can hold 100 g of water (equivalent to 100 cm3), so total pore space is 100 cm3. Porosity is 100
cm3/200 cm3 x 100%, or 50%. This is a typical porosity measure for a medium-textured soil. Calculate the
particle density (PD) of this soil sample.
Particle Density = 2.6 g/cm³
The particle density of an aggregate is defined as the ratio between the mass of a given amount of the aggregate and the total mass of all its individual particles. Only the voids inside the particles are included in this volume; the space between the particles is not. The particle density is influenced by both the material's particular density and the amount of vacant space within the particles. Particle density is significantly influenced by the amount of empty space present inside the particles.
The substance weighs 260 g.
Particle density is calculated by dividing the mass of a particle by the volume of soil solids:
Particle volume = 200-100
= 100 cm³
Particle density = 260/100 = 2.6 g/cm³
Therefore, Particle Density = 2.6 g/cm³
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Compare types of models. Which model best illustrates the formation of blood cells?
I'm confident that the production of blood cells can be described using a strong system like the computer models because they are used to depict real-life events.
Merks and his colleagues use computer simulations to examine the development of blood arteries. "We began with a common angiogenesis model. The endothelial cell is the only type of cell in this model. However, tip cells and stalk cells are the two different kinds of endothelial cells. Although experiments have indicated that tip cells are essential for angiogenesis, the specific process is unknown. To vary the behavior of certain of the model's cells, we have given them a new color. The tip cells can be moved so that they are at the leading edge of a fresh blood artery.
As a result of a stalk cell pushing the tip cell toward the front of the vessel, a new side branch develops. The emerging network is impacted by this.
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Atom A has an atomic number of 7, an atomic charge of +1, and an atomic mass of 14 amu. How many valence electrons are present in this atom?
The number of valence electrons present in an atom with an atomic number of 7, an atomic charge of +1, and an atomic mass of 14 amu is 5.
In order words, the element has 5 valence electrons. This element is confirmed nitrogen.
What is valence electron?Valence electrons are those electrons which reside in the outermost shell of an atom of an element. That being said, they are electrons which are found at the last shell of electron orbit.
So therefore, the number of valence electrons present in an atom with an atomic number of 7, an atomic charge of +1, and an atomic mass of 14 amu is 5.
In order words, the element has 5 valence electrons. This element is confirmed nitrogen.
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Which hummingbird adaptation is most advantageous for supporting their high metabolism?
The hummingbird's ability to enter torpor is its adaption that is most useful for sustaining their fast metabolism.
A scientist observes a group of birds perching on a wire.
The birds are evenly spaced, and each has enough room to
open its wings. Across the zoo enclosure, she observes
another group of birds perching in a similar arrangement
on a different wire.
Which option best describes the patterns of distribution observed by the
scientist
A. Regular pattern in a group; clustered pattern within the enclosure
B. Random pattern in a group; regular pattern within the enclosure
C. Random pattern in a group; random pattern within the enclosure
D. Clustered pattern in a group; random pattern within the enclosure
Answer: Random pattern in a group; random pattern within the enclosure
Explanation:
Answer:
A. Regular pattern in a group; clustered pattern within the enclosure
Sea anemones and clown fish live together in the ocean. Which statement best describes one way sea anemones depend on clown fish for an abiotic factor in an ecosystem?
Mutualism is a sort of symbiotic interaction that exists between the sea anemone and the clownfish, in which both species gain from one another. The clownfish receives protection and leftover food from the sea anemone.
The sea anemone and the clown fish team up in their battle for survival; the sea anemone provides protection from predators for the clown fish while the clownfish provide food for the sea anemone. Both parties in this connection gain from it. Mutualism or symbiotic relationships are what are known as this form of interaction.Having clownfish close by is also advantageous to anemones. Clownfish aid anemones in catching prey by luring them with their vivid colors. Since its host is known to expel stinging cells called nematocysts, clownfish can dwell safely within the tentacles of their host.Learn more about mutualism here:
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A scientist is testing whether light color affects plant
growth. She places three groups of plants in boxes, each
with only one color of light: red, blue, or green. She places
a fourth group of plants in natural light. Each day she
measures the plants and records their growth.
What is the independent variable in this experiment?
A. The type of plants she used
B. The growth of the plants
C. The plants in natural light
D. The color of light the plants received
The type of plants she used is the independent variable in this experiment. Thus option A is correct.
What are the types of variables in experiment ?Variables can be defined as the measurable factor that compulsorily added to an experiment which can manipulate and control the research.
An independent variable can be defined as the singular characteristic which can not be influenced by other factor, Age is an independent variable.
A dependent variable can be changed by other factors like independent variable; Control variable which remain constant and show no effect on other variables, it is mainly used to prevent bias in an experiment.
Thus option A is correct.
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Brian and Alex love anything that has sugar in it so they decided to do
an experiment involving sugar cubes. They wanted to see if the
condition of the cubes affected the amount of time for the cubes to
dissolve. They kept one sugar cube whole, they cut one cube in half,
and they crushed the third sugar cube. The partners put each sugar
sample in a clear plastic cup with 200 mL of hot water and timed how
long before the cubes dissolved. They repeated the experiment 2 more
times because their wonderful science teacher gave them 9 sugar
cubes.
Using the highlighter tool
IV - pink
DV - green
The third sugar sample will take less time to dissolve and the first whole sugar cube will take the most time to get dissolved.
The third sample will take lesser time to get dissolve due to their reduced size, crushed cubes will have more solute on their surface. The rate of solubility will rise.
Because there is more surface area exposed when a given amount of solute is pulverized into minute particles as opposed to large pieces, it dissolves more quickly. Compared to a sugar cube, a packet of granulated sugar exposes a far larger surface area to the solvent and dissolves more quickly.
The solute dissolves more quickly as the surface area of its particles is increased. A solute's surface area grows when it is divided into smaller bits, accelerating the rate of solution.
Hence, First sample has smallest exposed surface area , so it takes more time to get dissolved, second sample has more exposed surface area as compared to first so it takes lesser time than first, whereas , third sample has most exposed surface area so it dissolves quickly.
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Cells are the basic units of ____ and _____ in all forms of life
Answer:
structural and functional
Explanation:
Hope it helps you
Prompt:
Carrying capacity is the average size of a population that can be sustained over a long period of time in a particular habitat. The population size is limited by environmental factors such as food, water, diseases, mates, and shelter. If a population is larger than the carrying capacity, the environment becomes degraded, reducing resources and causing the population to crash.
Using the information above, discuss whether the human population has reached, exceeded, or not yet reached its carrying capacity on Earth. Why do you think it has or has not? In your response, be sure to think about the current state of the environment.
The carrying capacity of the earth has not been reach because the modern technology has kept increasing the earth's carrying capacity.
What is earth carrying capacity?The earth's carrying capacity is the average amount of life the earth can support which ranges from 9 billion to 10 billion people. However, this figure keeps changing.
The change in the carrying capacity of the earth is being affected by the following:
Food availability, Safe water,Advancements in technology,Disease Control andSpace.Currently, the capacity of the earth is affected by the advancement in technology which has led to increase in depletion of the ozon layer.
However, this can either add or reduce the carrying capacity of earth. Therefore it can be concluded that the capacity of the earth is not static.
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Definition in yours own words mass
A large body of matter with no definite shape, colour, density is called mass.
What is the definition of mass?
The amount of matter in a physical body is known as mass. In mechanics the mass is defined as the mass of an object is related to the force required to accelerate it and therefore related to its inertia and is essential to Newton's laws of motion.
Every thing which we can see around us is mass because it contains the matter like chair, table, jug, bat, bed, bag, bottle, football, glass, charger, mobile phone, basketball, hockey and many other things which we can see around us are the examples of the mass.
The formula of mass which we can use is Mass = volume × density.
The symbol of mass is m and the SI unit of the mass is kilogram (kg).
So we can conclude that a large body of matter with no definite shape, colour, density is called mass.
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name 5 ways that different species can interct with each other?
Question: GoodMorning: ) ✨ 5 ways that different species can interct with each other?
Answer: The Overview of competition, predation, herbivory, mutualism, commensalism, and parasitism.The term "symbiosis" includes a broad range of species interactions but typically refers to three major types: mutualism, commensalism and parasitism.Competition & Predation.
1) Commensalism.
2) Parasitism.
3) Mutualism.
4) Amensalism.
Explanation: The six possible types of symbiosis are mutualism, commensalism, parasitism, neutralism, amensalism, and competition. These are distinguished by the degree of benefit or harm they cause to each partner.Species interactions within ecological webs include four main types of two-way interactions: mutualism, commensalism, competition, and predation (which includes herbivory and parasitism). Because of the many linkages among species within a food web, changes to one species can have far-reaching effects.
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Which of the following is NOT one of the ways that protists are grouped?
A.The way that they reproduce
B.The way they move
C.Their size
D.How they get there energy and food
The following is not one of the ways protists are classified: their size, which is present in Option C because protists are classified based on their energy source and other factors.
What characteristics do protists have?Protists are eukaryotic cells; they are unicellular, such as amoebas, and they have organelles like the nucleus, vacuole, golgi, and so on that are found in other eukaryotic organisms, and apart from that, the amoeba does have the contractile vacuole that helps in the proper digestion of the food, and they also have different modes of taking the nutrition as some of them are plant-like and some of them are animal-like.
Hence, the following is NOT one of the ways protists are classified: their size, which is present in Option C because protists are classified based on their energy source and other factors.
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QUESTION 3
(Q007) The release of oxygen by green plants during photosynthesis is an example of a
O a. reservoir being destroyed.
b. flux involving the biosphere and geosphere.
c. new reservoir being created.
d. flux involving the biosphere and atmosphere.
The release of oxygen by green plants during photosynthesis is an example of a new reservoir being created.
Define photosynthesis.Plants and other living things employ a process called photosynthesis to transform light energy into chemical energy that can then be released through cellular respiration to power the organism's activities. Carbohydrate molecules like sugars and starches, which are created from carbon dioxide and water, store a portion of this chemical energy.
Even though various species perform photosynthesis in different ways, the process always starts when energy from light is absorbed by proteins called reaction centers that contain the coloured pigments/chromophores green chlorophyll (and other colors). Unlike bacteria, which have these proteins incorporated in the plasma membrane, plants store these proteins in organelles called chloroplasts, which are most prevalent in leaf cells. These light-dependent processes require some energy to remove electrons from appropriate materials, such water, creating oxygen gas.
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Killer whales need approximately 55 kcal daily to survive. If the phytoplankton population
produced 600,000 kcal, what is the maximum number of links there could be in the food
chain to ensure the killer whale got enough energy to survive?
Microorganisms that resemble plants called phytoplankton are found in lakes, rivers, and the oceans. Most whale species take in between 2,000 and 10,000 pounds of plankton each day on average.
How many calories do killer whales need?Williams extrapolated from this research to calculate the killer whales' estimated daily calorie intake. She determined that a 4.5-ton male would require 290,000 kilocalories per day and that an adult female weighing around two tons would require more than 190,000.
Microorganisms that resemble plants called phytoplankton are found in lakes, rivers, and the oceans. More phytoplankton than stars can be found in the world's oceans, which contain a billion billion billion phytoplankton. There are perhaps 100,000 different types of phytoplankton, which is quite diverse.
Most whale species take in between 2,000 and 10,000 pounds of plankton each day on average. They only consume, though, during the feeding season.
10,000 pounds of phytoplankton support every pound of whale weight. The energy transfer is inefficient, which reduces the number of killer whales that can survive and procreate. Additionally, it implies that killer whales must put in a lot of effort to get the food they require.
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Vocabulary - Land Judging and Homesite Evaluation
The method of growing crops whose normal growth and development require large areas of land and are planted in rows is called row crops.
Land judging and homesite evaluation:
The method of growing crops whose normal growth and development require large areas of land and are planted in rows is called row crops. Grasses are monocotyledons which appear as blades with parallel veins.
Shale is composed of dark sedimentary rock made of layers of compressed clay, slit or mud. Septic tank absorption field dug pond used to hold sewage solids for bacterial decomposition and effluent evaporation.
Therefore, The method of growing crops whose normal growth and development require large areas of land and are planted in rows is called row crops.
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A variable that is changed, depending on the change in the independent variable is a(n)
O extraneous variable
O control group
O independent variable
O dependent variable
O control variable
6) Choose the best answer.
A variable that is changed, depending on the change in the independent variable is the dependent variable.
What are Dependent and Independent Variables?
In statistical modeling and analysis, research, mathematics, and other experimental science domains, independent and dependent variables are frequently used. Since dependent variables are stated to be dependent on other variables and values, the word "dependent variable" is self-explanatory.
Through studies and other means of hypothesis testing, such a dependency is investigated, noted, and established. Contrarily, it is claimed that independent variables are not reliant on the values of other variables, and this is supported by experiments and other forms of hypothesis testing.
Typically, the dependent variable variation between the two variable types is the one being investigated and studied (dependent and independent). It is accomplished by regression, input modification, and the creation of regression models based on theoretical research.
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You have reports from four different studies of the effects of a new pesticide
on native populations of bees. Each report makes different claims about
whether the pesticide will harm bees and how harming bees can be avoided,
but the studies were done differently. Which of these studies would produce
the most trustworthy results?
A. An investigation whose results have been replicated by several
independent research teams.
B. A preliminary study conducted for the company that makes the
pesticide.
C. A summary of the observations made by the farmers who field-
tested the new pesticide.
D. A non-replicated experiment conducted by a company that
competes with the pesticide maker.
The correct option is: (c) A summary of the observations made by the farmers who field-tested the new pesticide.
a summary of the findings from the field tests the new insecticide underwent with farmers.
Describe pesticides.A pesticide is any substance used to control, prevent, or eradicate particular plant or animal life forms that are thought to be pests. Acute impacts, often known as short-term negative health consequences, as well as chronic effects, which can develop months or years after exposure, are both possible with pesticides. Eyes that sting, blisters, rashes, blindness, nausea, lightheadedness, diarrhea, and even death are examples of acute health impacts.
The report's studies in option (c) are the most appropriate.
So, the appropriate response is: (c) A summary of the findings from the field tests the new insecticide had with farmers.
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Why do oxygen (O2) molecules move into the cell and carbon dioxide (CO2) molecules move out of the cell on the ciliated side ?
Answer:
Simple explanation is the process of diffusion
Explanation:
Diffusion is defined as the movement of individual molecules of a substance through a semipermeable barrier from an area of higher concentration to an area of lower concentration.
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Which best defines a diploid cell during meiosis?
a cell that has double the number of chromosomes as the parent cell
a cell that has half the number of chromosomes as the parent cell
a cell that has double the number of chromosomes as the daughter cell
a cell that has half the number of chromosomes as the daughter cell
a cell that has double the number of chromosomes as the daughter cell
How do life zones different in each type of aquatic ecosystem?
Which of the following best describes an enzyme?
Question 1 options:
Enzymes are carbohydrates that provide large amounts of energy to cells.
Enzymes are proteins that serve as high energy reactants in chemical reactions causing them to speed up.
Enzymes store large amounts of energy that cells can use in its chemical reactions if other energy sources are depleted.
Enzymes are proteins that speed up chemical reactions but are neither the reactants or products of those reactions.
Answer: enzymes are proteins that speed up the chemical reaction but are neither the reactants or products of those reactions.
Explanation:
The correct option is Enzymes are proteins that speed up chemical reactions but are neither the reactants nor the products of those reactions.
Enzymes are biological catalysts that facilitate chemical reactions in living organisms. They are typically proteins (although some RNA molecules can also act as enzymes) and play a vital role in speeding up chemical reactions by lowering the activation energy required for the reaction to occur.
Enzymes achieve this by binding to specific molecules called substrates and facilitating their conversion into products without being consumed or permanently altered in the process.
Option 4 accurately describes enzymes as proteins that speed up chemical reactions but are not themselves consumed or transformed in the reaction.
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This is an organism from which other organisms evolved
There are billions of organisms in the world. It is found that all organisms evolved on the earth.
What is evolution?Evolution is the process where organisms are evolved from simple to complex. Amoeba is simple organisms and humans are complex organisms.
Amoeba is a simple and unicellular organisms. Humans are the mammals. The organisms are evolved from simple to complex one. Organisms are evolved from simple to complex.
Therefore, There are billions of organisms in the world. It is found that all organisms evolved on the earth.
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