Answer:
Convection
Explanation:
Hot air rises as it has less particles and more volume. This means that when they heat downstairs, the hot air rises to the top. Then, it cools and sinks because cold air has more particles and less volume. It heats up again from the downstairs unit and the cycle keeps going. This is called convection
Answer:
The volume of warm air expands and rises, warming the whole house through convection.
Explanation:
How will the coronavirus impact the upcoming presidential election?
Answer:
The virus will make people vote for whichever candidate they think will slow the spread of virus the most effectively. It may make it harder for people to get to the polls to vote, from fears of catching the virus while in the act of voting.
Nitrogen base, carbon sugar, phosphate group, What macromolecule is this?
Answer:
The macromolecule is nucleic acids (more importantly the nucleotides)
Explanation:
Nucleotides belong to the DNA/ nucleic acid part of macromolecules.
why a law is accepted as fact, but a theory is not.
Answer:
A law is accepted as a fact because this cannot be changed. A theory however can be changed over time
Explanation:
I took tests :p
Please help
Giving 100 points extra
And brainliest
Answer:zoom in
Explanation:
Answer:
I need you to zoom in
Explanation:
What is the density of a substance that weighs 4.2g and takes up a volume of 18cm3?
The density would be 14.567 lb/cu ft
Answer: would be 14.567 lb/cu ft
Explanation: first you would subtract it then you divide it and you get your answer.
How were the first modern humans, known as Homo sapiens, different from other hominid species before them?
A)
They were able to use fire to their advantage,
B)
Their brains were smaller than previous species,
They were able to create tools to make work easier,
D)
They were able to think of symbols and associate them with different
things.
Answer:
The correct answer is D)They were able to think of symbols and associate them with different things.
Explanation: i just did it on USATestPrep >w<
what are the 3 types of scientific models
5 important reactions that are important for metabolism
What is the advantage to a scientist in using a line drawing rather than a ball-and-stick model or Lewis structure?
Answer:
It saves time
Explanation:
You don't have to draw unnecessary details for complex structures
Line drawings will save the scientist time instead of Lewis structure.
what is Lewis structure ?It is a representation of a molecule structurally, where dots are used to show the position of electron around the atoms and lines represent covalent bonds between atoms.
Lewis structure is used to identify the lone pair of electron in molecules which help to determine chemical bond formation.
Lewis structures is used for the molecule having covalent bonds and for coordination compounds.
It can be also known as Lewis dot diagrams, electron dot diagrams, Lewis dot formulas etc.
This structure are based on the octet rule and describe chemical bonding, do not describe aromaticity, magnetic behavior accurately.
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Species that are_______species can occur in the same location and are phenotypically different.
Answer:
Species that are sympatric species can occur in the same location and are phenotypically different.
Explanation:
Speciation is the evolutionary process by which a population of a species acquires differentiating characteristics that lead it to distinguish itself from the species it formed. Sympatric speciation is a type of speciation that consists of the genetic separation of different populations of the same species that live in the same environment (same geographical location), so that species originate by divergence between individuals, that is, they diversify due to to the appearance of isolation mechanisms these can be genetic, ethological or sexual.
The word "dull" describes a mineral's:
Answer:
texture I'm pretty sure
Explanation:
Dull - This luster defines minerals with poor reflective qualities, much like unglazed porcelain. Most minerals with a dull luster have a rough or porous surface.
how was the first president in united states
Answer:
if you meant "who" its George Washington
Explanation:
If you meant "how" George Washington (February 22, 1732 – December 14, 1799) was an American political leader, military general, statesman, and founding father who served as the first president of the United States from 1789 to 1797. Previously, he led Patriot forces to victory in the nation's War for Independence.He presided at the Constitutional Convention of 1787, which established the U.S. Constitution
Definition: This is the process of matter changing from the liquid to the solid state.
Example: snow, ice forming in your freezer
Answer:freezing
Explanation:
Answer:
freezing
Explanation:
Describe the biological community you live in and explain what role (niche) you play in it.
Answer:
The biological community you live in is wherever you live and the biotic and abiotic aspects of where you live. Your role in that community is predation of many different types of species and mutualism, as you help the people around you and they help you. (or parasitism if you mooch off your parents)
what do birds eat to survive the evironment
Answer:
Birds can eat fruit, insects, fish, or small mammals
Explanation:
What niche do lions fill in their habitat?
Answer:
Lions are a big predator in their savanah habitat. They hunt zebras, wildebeast, and compete with hyenas.
Hope that helps
What best describes ecosystem on earth
Answer:
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.
Explanation: These biotic and abiotic components are linked together through nutrient cycles and energy flows.
does air have a homeostasi
Answer:
No hair can't have a kind of things like thar
If perfect growing conditions allowed a population of producers to grow and increase in density, which of the following changes in the food web would be expected initially?
A. New populations of herbivores would enter the food web
B. The population size o fab herbivores in the food web would decrease
C. Members of predator populations would leave the food web
D. The population size of predators in the food web would decrease
Answer:
A.
Explanation:
The population of herbivores wouldn't decrease because their food source is being increased. Predators wouldn't leave because more herbivores come to eat the increased number of producers, thus more than likely increasing the number of predators.
Initially, it would be expected that the food web would evolve when new populations of herbivores entered it. So, the correct option is A.
What is Food web?All the food networks in a specific ecosystem make up a food web. Each organism inside an ecosystem is a link in a number of food chains. Energy and nutrients can go along different food chains as their move through the environment.
A food web is created by the linkages between various, interdependent food chains. It involves intricate relationships between producers and consumers. Here, a variety of lower trophic level species are consumed by higher trophic level organisms.
At first, it would be anticipated that as additional population of herbivores entered the food web, it would change.
Therefore, the correct option is A.
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Because Increased carbon in the atmosphere traps heat in the Earth atmosphere, it intensifies the __effect A habitat restoration B greenhouse C doghouse D globalization
Answer:
Your answer would be B: Greenhouse
Happy to help :D
Which is the closest synonym for the word reform?
Answer:
Reconstruct
Definition:
build or form (something) again after it has been damaged or destroyed.
Answer:
ameliorate
Explanation:
You fill a storage cabinet with 12 bottles of normal saline. Each bottle contains 1000 mL. How many ounces of this solution are in the storage cabinet?
Answer:
Answer:amount of solution in the storage cabinet(ounces) ≈ 405.80
Explanation:
You are so h
There were 12 bottles of regular saline in the storage cabinet. Each bottle holds 1000 mL of ordinary saline, so 405.80 ounces of solution are contained in the storage cabinet.
How to calculate the ounces of this normal saline?This suggests that the storage cabinet's normal saline supply is 1000 mL divided by 12 bottles or 12000 mL.
Find the solution's volume in ounces in the storage cabinet, according to the query. As a result, we must convert from milliliters to ounces.
1 mL equals 0.033814022558919 ounces.
12000 = ?
The cross-multiplies
There are 12,000 ounces of solution in the storage cabinet, divided by 0.033814022558919.
405.768270707 ounces of solution are in the storage cabinet.
Therefore, 405.80 ounces of solution are contained in the storage cabinet.
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22POINTS PLEASE HELP
Question#1 An ecologist wants to investigate the effects of pollution on soybean plants. The
scientist grows five groups of plants and exposes four groups to various
pollutants. The fifth group is not exposed to any pollutant. The ecologist
observes the condition and growth of all the groups of plants over a period of
time. Identify the Dependent Variable, Independent Variable and Control Group in
this experiment.
Question#2 A Biology class wants to investigate what concentration of a salt solution is most
effective in preventing the growth of bacteria. Students prepare five dishes of
agar (a gelatin-like substance used to cultivate living material). They spread
solutions of different salt solutions on four dishes, leaving one dish untouched.
They then introduce bacteria on all the dishes and observe the dishes for the
amount of bacterial growth. Identify the Dependent Variable in this experiment.
*
What are the features of an energy-requiring reaction? Select all that apply. Small molecules are converted into complex organic compounds. The reaction requires an input of energy. The reaction results in the output of energy. Complex organic compounds are broken down into small molecules.
Answer:
-Small molecules are converted into complex organic compounds.
-The reaction requires an input of energy
Explanation:
Reactions in nature can either be energy-requiring or energy-releasing. Reactions that require energy are called ENDERGONIC reactions i.e. energy is needed to start the reaction provees. They are characterized by the INPUT OF ENERGY.
Also, when small molecules are converted into complex organic compounds by combining together in a process called ANABOLISM, energy is needed to put together the molecules to form a much larger complex molecules. Hence, it is a feature of energy-requiring reactions.
The features of an energy-requiring reaction include 'small molecules are converted into complex organic compounds' and 'the reaction requires an input of energy'.
An energy-requiring reaction is a type of reaction that requires energy, usually in the form of Adenosine Triphosphate (ATP), the energy coin of the cell.Anabolic reactions are chemical reactions that require energy to synthesize complex organic molecules from simpler ones.Conversely, catabolic reactions are chemical reactions that release energy by breaking down large organic molecules into smaller molecules.In conclusion, the features of an energy-requiring reaction include 'small molecules are converted into complex organic compounds' and 'the reaction requires an input of energy'.
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Decide which two organisms to compare in your paper. Choose one organism that lives in the
tundra and another from a
desert region so that you are working with two contrasting environments. Read about the two habitats, and describe their
characteristics. Here are a few characteristics to consider:
• average temperature
• seasonal changes
• average rainfall or snowfall
vegetation
• land features
Answer:
Temperatures in a desert climate range from 86 to 104 degrees Fahrenheit, while summers are wet and winters are dry. When the rains fall, herds of prey animals abound as they feed on the lush grasslands and water at the many waterholes and rivers. The average rainfall in the desert is 10 inches per year. Sahara desert vegetation includes African Welwitchsia, date palm, thyme, magaria, olive trees, orange trees, and fig trees. Apart from these, more than half of the Sahara desert is extremely barren with no vegetation found. However, there are still some areas in the Sahara desert that are lush, containing abundant trees and plants. The most common landscape features found in deserts are sand dunes, yardangs, desert pavements, debris, playas, oases, mesas, alluvial fans, arroyos and buttes. These landforms vary from desert to desert. In areas dominated by the tundra climate type, winters are long and cold, especially in the region north of the Artic Circle where, for at least one day in the year, the Sun does not rise. Winter precipitation generally consists of dry snow, with seasonal totals less than in the summer when cyclonic storms that develop along the boundary between the open ocean and sea ice yield rainfall. The average snowfall in the tundra is 10-40 inches per year. Tundra vegetation is composed of dwarf shrubs, sedges and grasses, mosses, and lichens. Scattered trees grow in some tundra regions. The ecotone between the tundra and the forest is known as the tree line or timberline. The arctic tundras located between the north pole and the coniferous forests or taigaregion. It is characterized by extremely cold temperatures and land that remains frozen year-round. Arctic tundra occurs in frigid mountaintop regions at very high elevations.
An area that provides food and shelter see see
Do atoms with more electrons produce more or less spectral lines?
In the first paragraph, UCLA climate scientist Daniel Swain claims, " We've gotten to the point where when it comes to extreme heat waves, there is almost always a human fingerprint." Explain: What does Swain mean?
Answer:
It means human is responsible for everything.
Explanation:
Swain who is climate scientist mean that the heat waves occurs due to the human intervention and activities. Human is responsible for the change occurs in climate and global warming. In some areas heat waves occurs which adversely affected human as well as animals and plants. Heat wave is a period of hot weather occurs due to emission of greenhouse gases which increase the temperature of the earth's surface.
What are cells products?
Answer:
everything that is produced by cells, everything composed of
is mitosis or meiosis preceded by interphase?
Answer:
Meiosis is preceded by an interphase consisting of three stages.
Explanation:
The S phase is next, during which the DNA of the chromosomes is replicated. This replication produces two identical copies, called sister chromatids, that are held together at the centromere by cohesin proteins.
