During which year was the worst flu pandemic?
A. 2009
B. 1969
C. 1918
D. 1957​

Answers

Answer 1

Answer:

C

Explanation:

Answer 2

Answer:

1918

Explanation:


Related Questions

if you are to establish your own animal and fish raising business,what it would be and why?​

Answers

Answer:If you are to establish your own animal and fish raising business,what it would be and why?​ Get the answers you need, now!

Explanation:

which of these factors will affect a population regardless of the populations density ? PLEASE HELP

Answers

Answer:

Density independent factors affect populations regardless of their size. Examples are winter, drought, forest fires. These factors are mostly abiotic (non-living). Predation affects population size.

disease

The factors that will affect a population regardless of population density is flooding. The correct option is C.

What is population?

A population is the entire group about which you want to draw conclusions. A sample is the specific group from which you will collect data.

The sample size is always less than the total population size. A population for this research does not necessarily refer to people.

A population is a subset of individuals from one species that live in a specific geographic area and interbreed in reproducing species. Some species' geographic boundaries are easy to establish, while others are more difficult.

Population change is influenced by three factors: birth rate, death rate, and migration. Though one or two of these factors may have an impact on a population in a specific area, all three have an impact on population change.

Thus, the correct option is C as the population can be get affected by flooding without regarding their density.

For more details regarding population, visit:

https://brainly.com/question/27991860

#SPJ2

i need the ansewer to this but i scammed these points any way
Which statement describes carbohydrates?

Carbohydrates store and transmit an organism’s genetic information.
Carbohydrates provide energy to organisms.
Carbohydrates help with an organism’s tissue growth and repair.
Carbohydrates provide an organism with long-term energy storage.

Answers

Where do we hypothesize that plants came from?

∠A and \angle ∠B are supplementary angles. If m\angle A=(3x-23)^{\circ}∠A=(3x−23)

and m\angle B=(2x-12)


, then find the measure of \angle ∠B.

Answers

Answer:

[tex]B = 74[/tex]

Explanation:

Given

[tex]A=(3x-23)[/tex]

[tex]B=(2x-12)[/tex]

Required

Find B

Since A and B are supplementary, then:

[tex]A + B = 180[/tex]

Substitute values for A and B

[tex]3x - 23 + 2x - 12 = 180[/tex]

Collect Like Terms

[tex]3x + 2x = 180 + 23 + 12[/tex]

[tex]5x = 215[/tex]

Divide through by 5

[tex]\frac{5x = 215}{5}[/tex]

[tex]x = 43[/tex]

Substitute 43 for x in [tex]B=(2x-12)[/tex]

[tex]B = 2*43 - 12[/tex]

[tex]B = 74[/tex]

How many chromatids are found in this nucleus?
Six chromosomes in metaphase are shown. They resemble the letter X with red dots in the center.
A.
3

B.
6

C.
12

D.
24

Answers

Each chromosome has 2 chromatids so 2*6=C.12 chromatids

Answer:

C. 12

Explanation:

Each chromosome has 2 legs called chromatids. There are 6 chromosomes, so 6*2 = 12.

Define photosynthesis, cellular respiration,
autotroph, heterotroph, herbivore, carnivore,
omnivore

Answers

Answer: Omnivore is an animal that eats both plants and animals.

Carnivore is an animal that eats only meat. Herbivore is an animal that eats only plants.

Heterotroph is an organism deriving its nutritional requirements from complex organic substances.

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

Explanation: Sorry they’re out of order in accordance to how you had them.

Which statement best summarizes how the light-dependent reactions and light-independent reactions (Calvin cycle) work together during photosynthesis
The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose
The light-dependent reactions capture energy and the light-independent reactions use that energy to make ATP
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make ATP
The light-dependent reactions capture bees and the light-independent reactions blend those bees up into golden cheddar mac and cheese... watch
out for the stingers though
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make energy in the form of
sunlight

Answers

The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose

The energy captured in the light-dependent reactions is stored in ATP and NADPH and is used in Calvin's cycle to fixateCO2 in order to synthesize glucose

What are two ways that acid rain affects the environment?

Answers

When the acid rain flows through the soil it leaks aluminum and flows into streams and lakes, which effects people and animals.

Acid rain can exhibit adverse affects on the environment by leaching aluminium from the soil and by creating nitrogen pollution.

The effects of acid rain:

Acid deposition or acid rain is a term, which comprise any kind of precipitation with acidic constituents like nitric acid or sulfuric acid, which fell to the ground from the atmosphere in dry or wet forms.

The ecological effects of acid rain are clearly evident in aquatic environments like lakes, streams, and marshes as it can be harmful to aquatic species and wildlife associated with it. When acid rain flows through the soil it can leach aluminum from the soil, which washes into streams and lakes.

Some kinds of animals and plants are able to withstand acidic waters and some amounts of aluminum. However, some of those which are acid-sensitive will get lost due to decline in pH.

Acid rain also comprise nitrogen, and thus it can result in nitrogen pollution in the coastal waters leading to decline in the populations of shellfish and fish in the regions. Therefore, nitrogen in the acid rain can exhibit deleterious effect on some of the ecosystems.

Thus, acid rain affects the environment by creating nitrogen pollution and by leaching aluminum from the soil components.

Find out more information about the effects of acid rain here:

https://brainly.com/question/6700006

What causes lactic acid to build up in muscle cells?

Answers

Answer:

anaerobic metabolism.

Explanation:

Answer:

When you don't have or there is not enough oxygen in the muscles  to break down glucose and the sugar and it called anaerobic respiration

Explanation:

Two parents, both with brown eyes, have four children. One child has brown eyes, like his parents, but the other three all have blue eyes. One of the children has been learning about genetics in science class and knows that brown eyes are dominant to blue eyes in humans. The student developed the following model of a Punnett square to predict the genotypes of his parents and his siblings.

Based on his model, the student claims that only one of the four children should have blue eyes. Which of the following explanations best describes why the Punnett square does not model the traits in the student’s family? (DOK 3)

Answers

Answer:

Punnett squares are not exact answers, they are only used to predict traits.

A.

The student is forgetting that a Punnett square is used to predict the outcomes of a genetic cross. The actual results do not always match up to the predicted outcomes.

A two-substrate enzymatic reaction in which one product is produced before the second substrate binds to the enzyme has a

Answers

Answer:

The correct answer is - Ping pong Mechanism.

Explanation:

The ping pong mechanism of the enzyme is a non-sequential mechanism of two-substrate enzymatic reaction in which product is produced after the binding with the first substrate.

After the produced form due to the binding of the enzyme to the first substrate, it changes into a temporary form that binds with the second substrate and completes the reaction.

Thus, The correct answer is - Ping pong Mechanism.

which is a non-renewable resource that is used to generate electrical energy?

A.water
B.coal
C.sunlight
D.ores​

Answers

Answer:

B) Coal

Explanation:

B) Coal

It is coal, bc coal is a non-renewable resource

When food leaves the stomach it is:

partly digested
completely digested
finished with the digestive system
undigested

Answers

Answer:completely digested

Explanation:because the enzymes in your stomach break it down

Answer:

Completely Digested....

hopes this helps you

Explanation:

After the first replication was observed in their experiments testing the nature of DNA replication, Meselson and Stahl could be confident of which of the following conclusions?

a
Replication is semi-conservative.
b
Replication is not dispersive
c
Replication is not conservative.
d
Replication is neither dispersive nor conservative.

Answers

Replication is semi-conservative because the two chains of DNA are separated by the helicase and corresponding nucleotides are placed on each chan by an enzyme called DNA polymerase

Identify the following carbohydrate

A. Monosaccharide

B. Disaccharide

C. Polysaccharide

D. None of the above

Answers

Answer:

Its A.

Explanation:

btw i love ur luffy pfp

your answer would be answer A

Looking at the image of the freshwater lake ecosystem in the reading, can you name biotic and abiotic factors in this specific ecosystem? What changes in this ecosystem would impact the biotic factors?

Answers

Answer:

Biotic: Fish, Plants, Animals, Some bacteria in the water

Abiotic: Water, Sunlight, Rocks

Changes to any ecosystem can affect the way organisms live. It can be a big change like having to adapt to their surroundings. An example is being camouflaged, or having an increase in population. Bad changes can lead to population decline, or maybe even being extinct.

Explanation:

There isn't really an image to see, but I put what I could think would be in a lake ecosystem.

10 POINTS !!! Why is it risky to build something whose natural frequency can be matched by
external vibrations?

Answers

Answer:Most objects have at least one natural frequency of vibration. If a nearby object vibrates at the same frequency, it can cause resonance. Resonance is an increase in amplitude of a vibration that occurs when external vibrations match an object's natural frequency.

Explanation:

It is risky to build something whose natural frequency is matched with external vibrations because of  ;  The effect of resonance

When an object constructed has a natural frequency which is equal to the frequency of a nearby external vibration, the amplitude of the vibration of the object will increase due to the resonance effect which occurs because the external frequency matches up with the natural frequency of the constructed object.

The negative effect of resonance is the increase in the amplitude of the vibration of the object which might lead to the partial or complete collapse of the constructed object.

Hence we can conclude that It is risky to build something whose natural frequency is matched with external vibrations because of  ;  The effect of resonance

Learn more : https://brainly.com/question/11331041

Which of the following are outputs of photosynthesis that are used as inputs for cellular respiration? [SELECT ALL THAT APPLY]

a. H20
b. CO2
c. O2
d. C6H12O6

Answers

A.H20 because I have to know

State, in terms of the number of subatomic particles, one similarity and one difference between the atoms of these isotopes of element X.​

Answers

Answer:

The atomic number is determined by the number of protons in the atom.

Neutrons can vary the mass of atoms of the same element; atoms of the same element with the different atomic masses are called isotopes.

Electrons do not contribute a meaningful amount of mass to an atom, and only vary the charge of the atom. A charge atom is an ion.

Explanation:

i hope this is right :)

How would your body be affected if your pituitary gland did not work properly

Answers

Answer:

For example, if the pituitary gland does not produce enough growth hormone in a child, they may have a permanently short stature. If it doesn't produce enough follicle-stimulating hormone or luteinizing hormone, it might cause problems with sexual function, menstruation, and fertility.

Explanation:

Answer:

c

Explanation:

Why do waves move faster at higher temperatures and in a solid phase?
O There is more energy and the particles are farther apart.
O There is less energy and the particles are closer together.
O There is less energy and the particles are farther apart.
There is more energy and the particles are closer together.

Answers

Answer:

B

Explanation:I took the test if u need help follow me

Waves move faster in higher temperature and in solid phase because there is more energy and the particles are closer together.

What is meant by intermolecular force ?

Intermolecular force is defined as the force of attraction experienced between the neighboring molecules in the same state.

Here,

During higher temperature and when in a solid phase, the waves exhibit movements very faster than in other phases.

This is because, when the temperature of the system is increased, the energy of the molecules in the system will be increased to a higher level. This energy formation is in the form of kinetic energy of the molecules.

Molecules in the solid phase have a greater intermolecular force of attraction with their neighboring molecules. Therefore, the molecules in the system will be more closer to each other.

As the kinetic energy of the molecules in the system increases, the molecules will start vibrating. These vibrating molecules induces the vibration to their neighboring particles, since they are closer together.

As a result, more and more highly energetic molecules are set to vibrate, which causes the wave to move faster in the system.

Hence,

Waves move faster in higher temperature and in solid phase because there is more energy and the particles are closer together.

To learn more about intermolecular force, click:

https://brainly.com/question/9328418

#SPJ7

Fred notices that all of his friend's brothers and sisters have dark hair. What is the most likely explanation for this characteristic?
O They have identical genes.
O They eat only healthy foods.
O They live in the same environment.
O They have parents with dark hair.​

Answers

Answer:

They have identical genes.

Explanation:

Hope it helps

Which upper chamber of the heart contains oxygen-rich blood?
a. the right atrium
b. the left atrium
c. the right ventricle
d. the left ventricle

Answers

Answer:

b. la aurícula izquierda

Explanation:...

Answer:

B.the left atrium

Explanation:

Which of the following is an example of cohesion?
A. water transforming into vapor
B. water soaking into a paper towel
C. water slowly dissolving rocks over time
D. water forming droplets during a rainstorm

Answers

Answer:

b

Explanation:

Who was one of the first people to identify and observe cells from cork?

Answers

Answer:

The first person to observe cells was Robert Hooke. Hooke was an English scientist. He used a compound microscope to look at thin slices of cork.

Explanation:

Sorry if I am wrong let me know if I am.

Capillaries are blood vessels that *

A.) deliver blood to the cells of the body

B.) contain striated muscle

C.) carry blood toward the heart

D.) readily exchange materials between the blood and body cells

Answers

Answer:

D.

Explanation:

The primary function of capillaries is the exchange of materials between the blood and tissue cells.

Why is it important to avoid applying too much nitrogen fertilizer?
O A. Too much nitrogen can buffer cells from extremes in pH.
B. Too much nitrogen in surface runoff can poison fish.
C. Too much nitrogen in surface runoff can cause algae to overgrow.
O D. Too much nitrogen can increase the salinity of soil.

Answers

Answer:

too much nitrogen in surface runoff can cause algae to overgrow

Nitrogen fertilizers used in large-scale agriculture could leave a legacy of pollution that would persist for decades in soil and groundwater, scientists in France and Canada warned, which published a study in the National Academy of Sciences magazine, " PNAS ". According to these scientists, the excess of these fertilizers in the environment has been linked to contaminated drinking water and can cause the rapid growth of algae that compromise aquatic ecosystems and coastal marine life.

Explanation:

Brainliest please?

Provide an
example of how energy from the sun affects patterns of movement in the ocean.

Answers

Answer:

The sun's heat evaporates some water and raises the concentration of the salt, causing the water to be more dense. Or it could be the gravitational pull of the sun from Earth, just like how the moon affects tides. I hope this helps you :)

Explanation:

The sun affects ocean currents in a couple of ways. ... The sun also heats up the air in the atmosphere at the equator. This air will move toward the poles and cool over time. In the process, wind that occurs due to air currents will induce currents at the surface of the ocean

hope this helped!

Match the type of water with the location in which it is found. surface water ,water vapor, atmosphere, well ,glacier ,river, groundwater ,ice. ​

Answers

Answer:

Surface water <---> river

Ground water <------> well

Water vapour <------> atmosphere

Glacier <-------> ice

Explanation:

Answer:

Plato

Explanation:

What will be the approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day? (Assume ambient temperatures are normal)
98.6
97.2
95.8
99.5

Answers

Answer:

c

Explanation:

I think its c. sorry if im wrong

The approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day is 95.8. So, the correct option is C.

What do you mean by Ambient temperature?

Ambient temperature may be defined as the air temperature of any object or environment where equipment is stored.

After the death of a victim, the temperature of the liver is found lower than that of the normal temperature of the body. Because as the individual dies, the speed of blood movement decreases with respect to time.

Therefore, The approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day is 95.8.

To learn more about Liver, refer to the link;

https://brainly.com/question/4138203

Other Questions
HELP IS DUE IN 5 MIN Which statement best completes the diagram?The Monroe doctrineA.Spain declares war on the United States.B.The United States gains new colonies.C.Europe loses power in the Americas.D.Russia gained territory in North America PLZ PLZ PLZ HELP I WILL MARK BRAINLIEST - SHARKS' TEETHLangston CarterThe day we found the sharks' teeth was foggy and cool. Moisture hung in the air so thick you could almost see it sparkling in the dim sunlight. There were days, early in the summer like this one, where it seemed there was more water in the air than in the bay. We had beached the boat and stepped out on the recently cleared spit of land. The ground had a light dusting of white sand over an under layer of dried black mud. It looked like a recently frosted chocolate cake, though the frosting was spread a bit thin for my taste. The ground was solid, but we knew from experience that it was full of fiddler crab holes, and would be underwater at the first super-high tide. Mysteriously, to us anyway, someone wanted to build a house there.We often came to these spots to look for artifacts. Our beach, our summer home, had been a fishing camp for as long as anyone living could remember. The oldest stories told of travelers coming down to the edge of the sea, lining up to fill their wagon beds with salted fish to take back home. Old decaying cabins still lined the beach. Rotting nets, hung out to dry in the last century, decorated their weathered walls. Their broken faces spun stories in our minds. The fishermen who, tanned and wrinkled from sun and salt, hauled their nets full of splashing mullet in to cheers from the waiting crowds. The bounty of the sea lightened everyone's hearts, and the smell of roasting fish filled the damp air. Women fanned themselves from wagon seats. Children splashed in the shallow edges of the bay. It was a scene we had acted out as youngsters, building an imaginary bridge to a life we would never fully know.Read this sentence from the text:Their broken faces spun stories in our minds.What is the main effect of the word faces in this sentence?A) It creates a feeling of despair.B) It creates the idea of something watching.C) It suggests the narrator has great fears.D) It implies a sense of history. It costs 8 to go on a bowling trip.A year group of 78 students go onthe trip.How much do they pay in total? 10( x + 1) = 2 x-7?? which descriptoin fits the term primary intitative and refumndem ? Calculate the amount of simple interest earned$1,000 at 4% for 4 years bonds. Carbon dioxide has a. Ionic b. Covalent c. Nonpolar covalent d. Polar covalent Which law passed by Congress enforced the 18th Amendment? Group of answer choicesa- Prohibitionb-Dawes Actc-Emergency Quota Actd-Volstead Act What was the setting of The Narrative of the Life of Frederick Douglass, an American Slave in the excerpts read?Baltimore in the early 1900sGeorgia in the late 1800sa Southern plantation in the 1800sthe Great House Farm in the mid-1800s what usually happens in a conflict of interest case Number the steps for balancing equations: What was the "moment of final suspense" in hamlet What is - 9 + 3 = I know its -6 but how I DONT WANT PEOPLE WHO ARE JUST GUESS PLEASE ANSWER CORRECTLY!!!PLZ HELP!!!A successful scion will produce the product of the rootstock with greater quality.TrueFalse PLEASE HELP A GIRL OUT!! what is 43,6480 x 34,4608 = What is the volurne of the figure? Enter the answer in the box.Cubic feet Describe the transformation of the graph y = (x)^3 + 6 Match these lems.1 leader of the Democratic Republican PartyNapoleon2. missionary family in OregonPennsylvania3. sold Louisiana Territory to the United Statestariff4. President's team of workersCabinet5. had a Whiskey RebellionMarcus Whitman6. tax on imported goodsThomas Jefferson In the late 1800s, women could not vote and minorities such as African Americans faced prejudice and discrimination. Discuss the causes of these issues, as well as the efforts of reformers who wanted to correct these problems in American society.