what is chemical reaction?​

Answers

Answer 1

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Explanation:


Related Questions

The concept of _________________ has ensured that economic and environmental conditions in different countries are related and linked.

Answers

Answer:

Globalization

Explanation:

Globalization can be defined as the strategic process which involves the integration of various markets across the world to form a large global marketplace. Basically, globalization makes it possible for various organizations to produce goods and services that is used by consumers across the world.

Some examples of international economic organizations involved in global economy and trade are;

I. World Trade Organization (WTO).

II. United Nations (UN).

III. International Monetary Fund (IMF).

IV. United Nations Conference on Trade and Development (UNCTAD).

In conclusion, the concept of globalization has ensured or made it possible such that economic and environmental conditions in different countries of the world are related and linked with the intention of generating revenue and profits while providing goods and services to meet the demands or requirements of various consumers across the world.

Answer:

Globalization

Explanation:

The concept of Globalization has ensured that economic and environmental conditions in different countries are related and linked.

Which organ releases the hormone insulin in order to regulate the level of blood sugar in the body?
Gall Bladder
Liver
b. Pancreas
d. Spleen

Answers

Answer:

Pancreas

Explanation:

Insulin is an essential hormone produced by the pancreas.

Answer:

Pancreas

Explanation:

During digestion, your pancreas makes pancreatic juices called enzymes. These enzymes break down sugars, fats, and starches. Your pancreas also helps your digestive system by making hormones. These are chemical messengers that travel through your blood.

Which of the following is NOT a
piece of evidence that Darwin
used to support his theory of
evolution?
A. fossil record
B. similarities among different species
C. the amount of shared DNA between species

Answers

Fossil record is not a piece of evidence that Darwin used to support his theory of evolution.

What is the theory of evolution?

Evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms' observable traits.

Darwin proposed that species can change over time, that new species come from pre-existing species, and that all species share a common ancestor. In this model, each species has its own unique set of heritable (genetic) differences from the common ancestor.

The current evolutionary theories can be categorized as Darwinism and Lamarckism. Charles Darwin theorized Darwinism. He explained his theory of natural selection in his book, On the Origin of Species.

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Answer:A.fossil record

Explanation:

will mark brainlist, help please!

Answers

Answer:

C

Explanation:

The development of this new BLG-free, hypoallergenic milk is based on a science that came to the forefront 150 years ago. What scientist's work provided the basis for such feats in biotechnology?

Answers

Answer: Mendel and genetics

Explanation:

"Speaking of fossil fuels; the chart above shows the common uses for which fossil fuel?"*
Petroleum
Coal
Natural Gas
Nuclear

Answers

Answer:

coal

Explanation:

I need 20 characters so Im typing this in hope of filling the space

5) Explain in your own words, what each of the following are:

a) fault:

b) focus:

c) epicenter:

d) seismic waves:

Answers

Answer:

a.)fault:A fault is a planar crack or discontinuity in a volume of rock over which rock-mass motions have caused considerable displacement.

b.)focus:The focus is on the location where an earthquake begins deep under the Earth's crust.

c.)epicenter:The epicenter of an earthquake is the point on the earth's surface that is vertically above the epicenter.

d.)seismic waves:Seismic waves are elastic waves that occur in the ground as a result of an earthquake or other natural occurrence.

Explanation:

Hope this helps!

Please mark me as Brainlinieast.

A fault is a planar crack or discontinuity in a volume of rock over which rock-mass motions have caused considerable displacement.

The focus is on the location where an earthquake begins deep under the Earth's crust.

The epicenter of an earthquake is the point on the earth's surface that is vertically above the epicenter

Seismic waves are elastic waves that occur in the ground as a result of an earthquake or other natural occurrence.

Explanation:

Which of the layers has the most interaction with the other spheres of Earth?

Mantle
Inner Core
Crust
Outer Core

Answers

Answer:

Crust

Explanation:

Crust has the most interaction with the other spheres of Earth.

↬Define a Cell in Biology.​

Answers

The cell is the basic structural, functional, and biological unit of all living organisms.

The structural and essential component of life is the cell. Cell biology is the study of cells, including their fundamental makeup and the purposes of each of their organelles.

The first biologist to discover cells was Robert Hooke. Cells make up every living thing. They could consist of several cells (multicellular) or just one cell (unicellular) (multicellular).

The tiniest cells known to science are mycoplasmas. All living things are constructed from cells. They give the body structure and turn the nutrients from the diet into energy.

Complex cells conduct a variety of tasks for an organism's parts. They resemble masonry bricks in that they come in a variety of sizes and forms.

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What stage of mitosis is depicted by the image above?
O metaphase
O cytokinesis
O telophase
O prophase
O anaphase

Answers

Answer:

Telophase 1 because of the constriction

Explanation:

The cell membrane constricts and divides the cytoplasm in half to form two cells

When the particles are equally spaced apart they have reached:
A. Hypertonicity

B. Dynamic Equilibrium

C. Homeostasis

D. Osmolarity

Answers

Answer:

B. Dynamic Equilibrium

Explanation:

Since the molecules are still in motion, but an equilibrium has been established, the end result of molecular diffusion is called a "dynamic equilibrium". The end result of diffusion is an equal concentration, or equilibrium, of molecules on both sides of the membrane. At equilibrium, the movement of molecules does not stop.

Answer:

B. Dynamic Equilibrium

Explanation:

When the particles are equally spaced apart they have reached the dynamic Equilibrium.

Organ transplantation, stem cell research, and cloning, are all examples of biotechnology.
O False
O True

Answers

True!

Organ transplantation, stem cell research, and cloning, are all examples of biotechnology.

Maja puts a hockey puck onto ice. After a while the temperature of the hockey puck decreases. What happens to the molecules of the hockey puck when the temperature of the puck decreases?

Answers

Answer: The energy of the molecules in the hockey puck decreases.

Explanation:

When the temperature of the hockey puck decreases, then the energy of the molecules in the hockey puck decreases as well.

In this scenario, when the temperature of the hockey puck decreases, then the hockey puck will gain heat molecules and the cold energy of the molecules that are in the hockey puck will reduce.

Which experiment should be conducted as a field investigation?

Answers

Observing changes in the nesting behavior of wood ducks

WITH SPECIFIC EXAMPLES, BRIEFLY DESCRIBE HOW FOOD CHAIN IS RELATED TO FOOD WEEB. Help please

Answers

Answer:

A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem.

Explanation:

Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.

which of the followimg could be reasons why popultion sizes may reach and maintaim plateaus? choose the three that apply

Will mark as brilliant answer

Answers

Answer:

Below :D

Explanation:

So basically, this question is asking what will cause a species' population to reach a point where it stops increasing.

Lets think about what can cause a lack of increase?

A decrease can cause this.

Or a slow in the rate of increase.

Now lets look at our selectable answers and see if any of them would fall under these two things.

First up is fewer deaths.

Well, fewer deaths basically means less of a decrease in population.

This is the opposite of decreasing the populatin count, and would instead raise it.

Next we have a limit in food supply.

This would cause a organism to starve and die.

So this would cause a decrease in population count.

So B is one of the answers

Next up is competition with other species.

When two species compete for a sort of resources, one massivly dies out due to outcompetion, and loses the resources needed to survive.

So this would also cause a large decrease in population count.

This makes C one of the answers

Next is increase in birth rates.

This would cause more organisms to be born of a species, basically increasing the population count.

This is the opposite of a decrease in  population.

Next we have competition for space.

This is very similar to answer C, and the outcompeted species dies out due to lack of space.

So E is one of the answers

Now, the next answer seems viable, because major storms can kill off organisms, like hurricanes, earthquakes, and volcanos for instance.

However, as seen in many organisms over history, while these major storms kill of organisms, they can recover.

So although major storms decrease populations, they dont actually limit them.

In the end:

B is correct

C is correct

E is correct

Hope this helps!

How do wales differ from fish

Answers

Answer:

Whales are mammals that need air from the sea's surface to survive. Whales are capable of giving birth to live young. Fish have gills and use them to draw oxygen from the water. The majority of fish lay eggs. Whales and other marine animals with horizontal tail fins, such as dolphins, have vertical tail fins, while fish have vertical tail fins.

hope this helped!

Whales are mammals
They need air to survive and they give out babies nine eggs

What is the answer to this?

Answers

Answer:

I say the correct answer is the 3rd one.

Explanation:

Answer is number 3

Structures and behaviors  for animals to obtain food         

Select one:

a.

Adaptations

b.

Respiration

c.

Digestion​

Answers

Adaptions in order for animals to obtain food they use structural adaptions such as body color, body covering, beak type, and claw type

can people see solar winds?

Answers

Answer:

Yes

Explanation:

astrophysicists can now see the solar wind with their own eyes.

The movement of water across a membrane does not require a concentration gradient.
A. True

B. False

Answers

Answer:

false

Explanation:

because it is osmosis any liquid (water) can move through the membrane withought energy

Answer:

False

Explanation:

What is an organism made of one cell called

Answers

Answer:

Unicellular organisms

Explanation:

PLEASE HELP!!!! You are a scientist tasked with writing a journal article on the evolution of alligators. In 3–5 sentences, describe the different forms of evidence you might use to analyze the evolution of alligators.

Answers

Answer:

The first alligator ancestors evolved about 245 million years ago.

Explanation:

The first alligator ancestors evolved about 245 million years ago due to change in the environmental condition.  crocodilians appeared about 80 million years ago during the Cretaceous period. Modern alligators has experience less changes which is closely related to their ancient ancestors and look much like to their relatives that exists about 80 million years ago. The main reason for the change in the body structure of alligator is due to change in environmental condition.

The evolution of alligators can be analyzed by sequencing samples of different species and then producing a bioinformatic analysis.

What is evolution?

Evolution means descendence with some class of modification in offspring (phenotypic, genetic, etc).

Evolution can be analyzed by sequencing and comparing the linear order of nucleotide sequences between different species.

In conclusion, the evolution of alligators can be analyzed by sequencing samples of different species and then producing a bioinformatic analysis.

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The offspring in binary fission are
identical
different

Answers

identical is the answer to the question

Answer:

Identical

Explanation:

Binary fission is a form of asexual reproduction. This is when only one parent is involved in creating offspring. Since there is only one parent, two sets of DNA cannot be combined into a new offspring; so, it must be identical.

Explain why some mutations cause differences in phenotype and others do not?

Answers

I have no idea





Ahhhhhhhhhhh

Name three factors that can result in a decrease in the size of a population

Answers

Answer:

birth rate,death rate, immigration and emigration

The four most fundamental factors that contribute to the decrease of size in population is birth rate, death rate, immigration, and emigration.

Other than mountains, what else could cause geographic isolation?

Answers

Answer:

Other than mountains, what else could cause geographic isolation? population to start a new population. genetic drift -change in allele frequency in a small population due to random chance. migration - some organisms move away to start a new population

Explanation:

thank me later

helppppppppppppp im stuck

Answers

Answer:

Ecosystem

Explanation:

Ecosystems are the largest organizational level found in one coral reef

PLS HELP I’LL GIVE BRAINIEST

Answers

Answer:

SEE BELOW

Explanation:

1) DNA: CCA TAG CAC GTA CAA CGT GAA AGG TAA

 mRNA: GGU AUC GUG CAU GUU GCA CUU UCC AUU

AMINO:  Gly lle Val His Val Ala Leu Ser lle

2) DNA: CCG TAG CAT GTT ACA ACG CGA AGG CAC

 mRNA: GGC AUC GUA CAA UGU UGC GCU UCC GUG

AMINO: Gly lle Val Gln Cys Cys Ala Phe Val

Which is the best answer to explain how energy levels are affected as energy moves through a food pyramid?

a)Energy increases at the top of the food pyramid because the top predators need more energy

b)Energy increases at the bottom of the food pyramid because consumers pass energy on to the producers

c)Energy decreases at the top of the pyramid because energy is lost at each level of the pyramid

d)Energy decreases at the bottom of the pyramid because producers represent less energy than consumers

Answers

c!! i had this question before . energy decreases at top
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Which expression is equivalent to the expression 512^1/44^1/8(1032^1/5)?ANSWERS:A: 2^5/2-8B:-6C: -4D: 2^9/4 --------- 2^1/4-8 help me pls no links or files if u answer correctly u get brainless hurry Name three factors that can result in a decrease in the size of a population Change all the sentences as told in the bracketA parcel of books was received (present perfect). Many workers have been suspended (simple past)Ram as well as his son was arrested ( Past perfect)Neither his father nor his mother can help him to overcome the situation ( simple past)He as well as I is going (Present perfect)The police have arrested the thief (future perfect) Solve graphically: 2x - y = 7 and x - 2y = 5. what factors led to the decline of the mycenaeans The diameter of a cone-shaped storage tank is 14 feet and it's height is 9 feet. Find the volume of liquid the tank can hold. Round your answer to the integer, if necessary. Use the approximate of value of /pi , that is 3.14. Which of the following was not taken into consideration in order to accurately interpret nonverbal behavior? You are telling your friend about something important in your life. It's a serious moment. Suddenly, your friend glances over your shoulder and bursts out laughing. You're shocked and you immediately ask your friend how he could laugh at something so serious. The Executive Branch includes the Supreme Court.Choose best answerO TrueO False what is one advantage of offshoring? 24% of what is 25? Round to the nearest tenth. is 0.45 greater than 0.5 I'm so confused pls help A person of interest was identified by the police. Using three different telecommunication towers,the police were able to gather the following information about the person's cell phone location. The person is 7 miles away from A(4,4.6). The person is 5 miles away from B(-3.5, - 3.8). The person is 6 miles away from C(-6, 5.5).Use the information from towers A, B, and C to find the approximate location of the person ofinterest. A random sample of 12 families were asked how many kids they had. The data are given below. According to the US Census, families have on average 2.4 kids per family. What is the p-value for the alternative hypothesis that the average number of kids per family is different than the US Census value How many grams of water are produced when 12.50 mol oxygen reacts with hydrogen? Since the 1990s, many school districts have gone backward by becoming more segregated. Which section BEST explains WHY this has happadedNone Of The Same Opportunities"School Segregation Is A Civil Rights Violation"O "50 Years Ol Segregation In Mississippio "Courts Stopped Paying Attention" (44=6x-1+9x,-5)I dont know how to answer this I just know its ( , -5) PLS HELP WITH THIS IN YHE RIGGHT ORDER I MARK YOU BRAINLIEST The 3rd one please!Ill mark you the brainliest!!!!