PLEASE HELPPPP!!!!!

Write a general statement that could be used to determine if other mass extinctions have occurred in Earth’s history. Explain why your statement would is appropriate. 2-3 Sentences.

Answers

Answer 1

Answer:

Explanation:

The most appropriate example is the extinction of the dinosaurs. All sorts of theories were put forth. Most think there was a dramatic change in the environment, a change that left no time for the dinosaurs to adapt to that change.

Whatever happened,  an asteroid, volcanic eruptions, or something else, whatever you propose has to explain why birds and mammals survived.

So whatever occurred, it had to be dangerous to land animals, but not those who flew or those who could think well enough to avoid whatever was happening around them.

That said, I would propose that it was a virus that was not air born and the genetic make up of mammals could avoid the harmful effects of the virus.

I would propose that this is the only explanation that works. Perhaps the makeup of the blood could not adapt to the extinction. The blood of a dinosaur might not have included very powerful neutrophils (which fight disease).


Related Questions

Where is most of Earth's drinking water found?
A: Ground Water
B: Lakes
C: Ice Caps and Glaciers
D: Oceans
PLEASE HELP ASAP

Answers

Answer:Glaciers and Ice Caps

Explanation:

Over 68% is from grlaciers and ice caps

Answer:

I think A

Explanation:

Because they were dig into the ground & they will refill it made up of fresh water ....

How much does a fish cost in China?

Answers

Answer:

34 Renminbi

Explanation:

The United States’ economy produces 20% of the world’s __________. A. input B. wealth C. output D. resources

Answers

Answer:

Output

Explanation:

Answer:

C. output

Explanation:

Analyze the map below and answer the question that follows. A map of the U S. Two oceans are labeled 1 and 2. 1 is to the west of the U S. 2 is to the east of the U S. The ocean labeled with the number 1 on the map above is the __________. A. Atlantic Ocean B. Pacific Ocean C. Arctic Ocean D. Indian Ocean Please select the best answer from the choices provided A B C D

Answers

Answer:

B. Pacific Ocean

Explanation:

According to the map description, the ocean identified with the number 1 is the Pacific Ocean. We can see this, because according to the description, this ocean is on the left side of the American continent, covering the entire territory that includes North America to South America. The ocean that is located in this region is the Pacific Ocean.

A person travelling from Delhi to Norway alters the time on his watch at several places because the _________________.
1.East to West or longitudinal extent is very great
2.North to South or latitudinal extent is very great
3.East to North extent is very great
4.South to West extent is very great

Answers

Answer:

East to West or longitudianl extent is very great.

Explanation:

The world is divided into 24 time zones. Each of the time zones is set at 15 degrees difference, and they go from east to west. In practice, this means that when someone is taking a longer trip from east to west or the other way around, needs to adjust the clock because of passing through different time zones.

In this case, we have Delhi in India and Norway as a whole (though presumably, the person will land in the southern part of Norway). The difference in time zones between the part of India where Delhi is located and Norway varies as Norway's territory falls into three time zones, so it can be a 3, 4, or 5 hours difference. Now considering that Norway's biggest cities and most of the population are located in the southern third of the country, the chances are that the person in question will have to adjust the clock to 5 hours difference.

Select the correct answer.
Which type of work was the main occupation during the Xia dynasty?
O A. Jade works
OB. fishing
O c. agriculture
OD. selling of pottery
Reset
Next

Answers

Answer:

B- Fishing

Explanation:

Fishing was a phenomenal and a very helpful way of providing food. and how many eat and so starving since it was so easy to catch fish. I hope I helped! (I just learned about this awhile ago in my history class)

The four spheres of Earth constantly interact with each other such that each one affects the others.
The ________ depends on resources from other spheres in order to exist.
A.Hydrosphere
B.Lithosphere
C.Atmosphere
D.Biosphere

Answers

The Biosphere depends on resources from other spheres in order to exist. Thus, option D is correct.

The Biosphere is the main reason for the expansion of life of living organisms on the earth. It depends on the other three resources Hydrosphere, Lithosphere, and Atmosphere. It is a thin life-supporting stratum on the surface of the earth where life exists.

The atmosphere proved oxygen and carbon dioxide which are necessary for the respiration and photosynthesis process which are the major source of existence of life. Hydrosphere provides a water source to all organisms. Lithosphere provides nutrients and minerals to the planet.

To learn more about Biosphere

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A country that is changing its economic focus from agriculture to industry has a __________ economy.
A.
mixed
B.
command
C.
developing
D.
traditional

Answers

The answer is C. Developing I think
It’s c because it’s economic focus from agriculture to an industry which is a command of its agriculture industry

Which region was under the control of the Soviet Union?
A. Central Europe
B. Eastern Europe
C. The Nordic countries
D. Western Europe​

Answers

Answer:

Eastern europe

Explanation:

Which table correctly shows the interior temperature, melting point, and state (phase) of matter of the materials located at 4000 kilometers below Earth’s surface?
1.
Interior
Temperature (°C)
5700
Melting
Point (°C)
5400
State of
Matter
solid
Interior
Temperature (°C)
5700
Melting
Point (°C)
State of
Matter
2
5400
liquid
Interior
Temperature (°C)
5400
3
Melting
Point (°C)
5700
State of
Matter
solid
Interior
Temperature (°C)
Melting
Point (°C)
5700
State of
Matter
4.
5400
liquid
EX
Zoom: Standard
B

Answers

Answer: interior temperature: 5700

Melting point: 5400

State of matter: liquid

Answer:

temp - 5700

melting point- 5400

star of matter - liquid

How did Colonization along the Mississippi River lead to the founding of the United States of America that we know today?

Answers

It was one of the world's most important commercial waterways in 1 of North America's great migration routes for both birds and fishes native Americans lived along its banks and used the river for sustenance and transportation

What is the legacy of Alexander the Great? What is he known for?
Be sure to list at least two different achievements.​

Answers

Answer:

Alexander the Great is one of the most important figures in human history. His legacy and achievements are many, and we can easily list two:

Explanation:

Legacy in military strategy: Alexander the Great was one of the best military strategists of all time, along with the likes of Julius Caesar and Napoleon. Military commanders throughout history, even today, have learned from his intellectual and military might.

Cultural and political legacy: Alexander the Great unified a large part of the world known to him under the Greek (Macedonian) banner, including lands as divergent as Egypt, Assyria, Persia, Anatolia, and Parthia. These lands continued to have a deep Greek cultural influences during the ensuing centuries.

# 5 I will give brainliest

Answers

Answer:

to support their military and fund protection against the other nations

Explanation:

Imagine you are creating a new local government for your community. where would you place it's new borders? ​

Answers

Answer:

somewhere

Explanation:

What are 5 ways that Canada’s
landforms affect population?

Answers

People are also affected by landforms. People generally settle in flat, fertile valleys and plains, where they can build homes and crops easily. Fewer people live in mountains, swamps or desert areas.
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Which force of change to Earth is caused by the movement of tectonic plates?
erosion
earthquake
wind
Pollution




Answers

Answer:

The answer is B. earthquake

Explanation:

Earthquake is causing movement of tectonic plates.

Why did the US and USSR never declare war on one another?
(A) Neither country wanted to engage in a nuclear war that would lead to
worldwide destruction
(B) The US was concerned about having to enter a war with all of the Eastern
Bloc countries
(C) The USSR was concerned about having to enter war with all of the Western
Bloc countries
(D) All of the answer choices

Answers

Answer:

Neither country wanted to engage in a nuclear war that would lead to worldwide destruction.

Explanation:

The US and USSR became arch enemies soon after World War II ended, and that continued to be the case until the USSR seized to exist. The two countries became opponents and developed very bad and tense relations because they had different ideas as to how the world should shape up, but also because both of them wanted to be the only dominant power in the world.

Both countries were heavily armed and the weaponry was constantly icnreasing, with newer and better weapons constantly been created to gain an advantage. Nuclear weapons were abundant at both as well, but they never got used in an open war between them. The reason was simple, if a direct war between them occurred, there would have been worldwide destruction and everyone will lose, so that was kept as the last option in case of an attack by the other. Not to be mistaken though, these two were constantly in war with each other, not just diplomatic, but also military one, just that they used other countries as battlefields where they supported a particular side.

What percentage of Americans could vote when George Washington first ran for president? Who were they?

Answers

Answer:

I believe the correct answer is 15 percent. Only people who owned property and were white could vote, so poor white people, black people, and women could not vote when George Washington ran for president.

People consume different kinds and amounts of food, depending on their location, activities, and available food resources.
Dietary needs and the consumption of vital nutrients varies between developed countries and developing countries.
Explain how developed and developing countries differ in food consumption and diet.

Answers

Answer:

the difference is in the nutrition of the food in developed and developing countries.

Explanation:

assumed that a country with a very low anual income or the per capita having a very low value might not have the fortune to have the consumption of every nutrient possible in there daily meal. whereas in compared with the developing countries every people is sufficient and literate and much familiar with the quantity and quality consumption so and we can see that this is the first difference between the consumption of different people in countries of two face.

Answer:

Food consumption in developed and developing countries vary in quite a few ways. There are a few reasons for this, such as income, capita having low value, and population. A country with a low annual income might not be able to buy imported goods because they are too expensive. If a developing country has a large population, they may not be able to afford food for everyone to eat. A family in a developing country may also depend on farming on their own to grow their food. Whereas developed countries can get imported goods and have largely sustained farms, factories, and cattle for food. All of this can be sold in stores for people to buy and use. This means that even if the population is large, people that can afford it can go to the store and get food. All of this has an effect on diet and food consumption. If you can afford to buy food to meet your dietary needs, your diet will be very restricted and you may not get all of the nutrients you need.

(Word count: 180)

How is it possible for the sun to be more luminous than a white dwarf if the sun has lower temperature

Answers

A white dwarf may be hot but it is not generating energy, it is losing it.

A white dwarf is the remains of a star after fusion reactions have finished. The core collapse which creates a white dwarf makes it initially very hot. It can be over
100
,
000
K
.
White dwarfs emit radiation while they cool down over a very long time period. They are very small and have very low luminosity.
A star like the Sun on the other hand is constantly producing energy from fusion reactions in the core. Although the surface temperature may only be
6
,
000
K
, the core is at
14
,
000
,
000
K
and constantly producing energy. Hence the Sun is much larger and much more luminous.
Red giant stars are even cooler at less than
4
,
000
K
. They still have fusion reactions taking place in or around the core. They are very large and very much more luminous than the Sun.

Which two states contain large areas that get more than 7.5 kWh/m2/day of
sunlight?
I A. California (CA)
B. Georgia (GA)
I C. Florida (FL)
D. Arizona (AZ)

Answers

Answer:

A. California (CA)

D. Arizona (AZ)

Explanation:

According to the map I have uploaded below, both California and Arizona have large areas that get more than 7.5 kWh/m2/day of sunlight.

These areas corresponds to the desert areas of Southeastern California, Most of Arizona, and Southern Nevada. In particular, the areas that sorround the Mojave Desert.

Some of these regions are among the sunniest in the world. For example, Yuma, Arizona, is the sunniest city in the world according to several statistics.

How are forest useful for us???



Please guys give answer in very short.......​

Answers

Answer:

We depend on forests for our survival, from the air we breathe to the wood we use. 

what state meant explains the purpose of the preamble to the united states constitution

Answers

Answer:

A

Explanation:

the constitution outlines goals for our government, or things they would want that they think was best at the time.

Answer:

A

Explanation:

explain how the african borders were drawn

Answers

In 1885 European leaders met at the infamous Berlin Conference to divide Africa and arbitrarily draw up borders that exist to this day. Lines of longitude and latitude, rivers and mountain ranges were pressed into service as borders separating the colonies.

Answer:

In 1885 European leaders met at the infamous Berlin Conference to divide Africa and arbitrarily draw up borders that exist to this day. Lines of longitude and latitude, rivers and mountain ranges were pressed into service as borders separating the colonies. ...Fe

What is the biggest obstacle to traveling by boat on the Congo River?
A.
the many cataracts
B.
the unusual path of the Congo River
C.
shallow areas due to drought
D.
the river's narrow width

Answers

The biggest obstacle to traveling by boat on the Congo River is A. the many cataracts

The numerous cascades on the Congo River are the main challenge for boat passage. Navigation on the Congo River is challenging and dangerous due to a number of strong cataracts, or rapids and waterfalls. The hills and troughs in the riverbed that force the water to flow quickly across them are what generate these waterfalls.

On the Congo River, there are a total of seven major cataracts that make navigation extremely difficult and demand that boats be unloaded and portaged around. There are also shallow places brought on by the drought. Because of the ideal growing conditions provided by these shallow locations, the water plants flourished, producing troublesome obstructions for the boat.

Read more about Congo River on:

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Which of the following nations attempted to convert Native Americans to Christianity and incorporated them into
colonial life as traders or as a labor force?
A. France only
B. Spain only
C. Britain and Spain
D France and Spain

Answers

Answer:

The answer is

D. France and Spain

Answer:

D. France and Spain

Explanation:

Why might the concept of separate global regions become a thing of the past?

Answers

Because the planets are aligning. Some are getting damaged, and that is a whole concept from the past.

A group of people in a particular area that have a strong sense of unity based on a set shared beliefs is a -

Answers

Answer:

nation

Explanation:

sum1 help for a cookie

Answers

Answer:

Pretty sure its a tsunami, a whole species could die and its immediate

What was the cause of food and other items being put into the tombs?

Answers

Answer:

Hi !

Here is your answer !

The wall paintings portraying scenes from daily life show how the food was consumed, at least among the wealthier classes. Bread and beer were staples in ancient Egypt and they are also the products most frequently found in the tombs.

(Sorry no explanation in this question)

Thank You !

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