How do scientists count a species population?
A. Add up the individuals who come into an area because of
reproduction or immigration,
B. Add up the individuals who leave an area or die,
C. Add up the biodiversity in an area,
D. Add
up
the individuals who come into an area and subtract those
who leave the area,

Answers

Answer 1

Answer: D

Explanation: :)

Answer 2

The correct answer is to add up the individuals who leave an area or die, which is option b, as when scientists count a species population, they typically use a method known as population census or population sampling.

Sampling is a method where scientists select a representative sample area within the species' habitat or range. This sample area should be large enough to be representative of the entire population but manageable for counting and data collection. Scientists then count the number of individuals within the sample area. Once the number of individuals within the sample area is determined, scientists use statistical methods to extrapolate this information to estimate the total population size.

Learn more about the Sampling  here

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Related Questions

mercury surface looks similar to what moon​

Answers

Answer: Earth’s moon.

Explanation:

The 1rst pic is Mercury and the 2nd one is the moon. You will see how similar they are. Like our moon, the planet Mercury is covered is craters and it looks similar in color. But scientists have noticed that Mercury is most similar to Earth’s moon.

hope this helps and please mark me brainliest if it did :)

How do Jupiter's density and period
of rotation compare to Earth's?​

Answers

Answer:

How do Jupiter's density and period of rotation compare to Earth's? (1) Jupiter is less dense and has a longer period of rotation. (2) Jupiter is less dense and has a shorter period of rotation.

Explanation:

Answer: Jupiter's density is less dense so you'll be floating and will be in rotation for a short period of time

Explanation:

This is based on what i read hope this helps

I need help in this geometry problem!

Answers

I am pretty stupid so I don’t really know the answer to ur question but I would reccomend pressing use a hint

which type of plate boundary does the image show

Answers

There is no image so I’ll just explain the main 3:
Convergent: two boundaries are moving towards each other and usually create mountain ranges, or one is sinking below another another plate, cause volcanoes to appear

Divergent: two plates are moving away from each other, which created new land in between. Mostly is found on the sea floor

Transform: two plates are sliding past each other, usually appears with divergent boundaries

Why did Europeans in the Caribbean colonies turn to Africans to replace the native peoples as slaves?

Answers

Answer:

epidemic diseases reduced the native population by 50 to 90 percent, the labor supply was insufficient. Africans were experienced in intensive agriculture and raising livestock and knew how to raise crops like rice that Europeans were unfamiliar with.

Explanation:

Question 3 of 10
5 Points
Which of Earth's layers is just below the lower mantle?
A. Upper mantle
B. Crust
C. Inner core
D. Outer core​

Answers

Answer:

D. Outercore

Explanation:

Below the crust is the lower mantle, and below the lower mantle is the core. There is the outer core, which is still liquid, and the inner core, which is made of solid metal. ... The lower mantle is in between the upper mantle and outer core of the earth

Why is the valley of the Amur River warmer than the valleys of the other rivers shown on the map?

Answers

I would have to see the map and where the heat is located to answer your question

saturated water vapour expands in a constant pressure piston cylinder system. what must happen to the temperature of the water vapour for this to be true​

Answers

Answer:

The steam must increase the temperature.

Explanation:

As the water vapor increases the temperature, like all gaseous states ... The increase in temperature will trigger it to increase its volume and the piston will run.

producer of 80 percent of the rainfall in East Asia

Answers

Answer:

8/100 is the reason

of rainfall in East Asia

What would happen in a rainforest climate if he earth stops rotating daily? What would happen in a tundra climate if he earth stops rotating daily?

Answers

The consequences caused if the planet earth stopped spinning are very controversial and no scientist has come to a conclusion of what would actually happen. However, it is known that the consequences would be disastrous and both tropical forests and tundras would suffer a strong impact and would cease to exist over time.

Both the rainforest and the tundra would cease to exist in a situation like this. This is because areas are very influenced by the climate and the factors that each climate imposes for their survival.

First, if the earth stopped spinning, the world would be extremely hot on one side and extremely cold on the other. The tundra that was on the side of the earth that had access to the sun would not be able to form, whereas the tundra that was on the side of the earth that did not have access to the sun would be totally consumed by the animals that would live in that environment and that have no other options.

The tropical forest, on the other hand, if it were next to the sun, would suffer from the extreme temperature that would be caused, in addition to the evaporation of their bodies of water and all the humidity of that environment. In addition, extreme temperature could cause natural fires that would be extremely destructive. If the rainforest were on the side that has no access to the sun, the trees would die, since the presence of sunlight is essential for photosynthesis.

European nations have grown and emerged over time in response to multiple events. On the map, mark the location of the nation ruled by the House of Tudor.

Answers

Answer:

hope these helps

Explanation:

why was Rosa Parks significant to the Civil Rights Movement​

Answers

Answer:

Called "the mother of the civil rights movement," Rosa Parks invigorated the struggle for racial equality when she refused to give up her bus seat to a white man in Montgomery, Alabama. Parks' arrest on December 1, 1955 launched the Montgomery Bus Boycott by 17,000 black citizens.

Answer: Her actions brought national attention to the Civil rights movement

Explanation:

If 5cm on a map represent 4.5km. What is the scale of the map in representative fraction​

Answers

Answer:

Explanation:

Representative fraction is simply ratio so if 5 cm represents 4.5km we will have to convert it to centimeters which is:

5:4.5*10000

5:450000

in the lowest term that will be

1:90000

1:90,000 is the answer

you have $60 and your sister has $120 you are saving $7 per week and she is saving $5 per week how long will it take before you and your sister have the same amount oif money write an equation and solve

Answers

Answer:

isn't this math? why Is it in the Geography section

One of your friends argues that he has seen two identical constellations, one in January and one in June. He says they are different because they were in different locations in the sky, even though they looked identical. Why is your friend incorrect? Explain.

Answers

The friend is incorrect as all stars move in the sky and rotate around the northern star meaning it was the same constellation even if it was in a different location

Which flowchart best explains how a change in ocean temperature, such as
occurs during El Niño or La Niña, could affect weather in another part of the
world?
O A. Ocean - Weather - Clouds - Wind
O B. Coriolis effect - Atmosphere - Wind - Ocean
O C. Weather - Atmosphere Wind – Ocean
O D. Ocean - Atmosphere -
Wind - Weather

Answers

Answer:

D. Ocean - Atmosphere -  Wind - Weather

Explanation:

The El Nino (warm) and La Nina (cool) are the opposing phases of climatic patterns in the tropical pacific ocean and take place every 3 to 7 years. Combined they are called ENSO.  First, in the El Nino ocean temperatures in the eastern tropical pacific ocean rise above average and this leads to rainfall over Indonesia and storms in central pacific. This rising air increases the air motion and leads to dryness and high surface pressure during the La Nina phase this condition gets reversed. During the El Nino, the northwestern pacific tends to be warmers and the southern tier of California tends to be cooler and wetter. These surface temperatures are caused and changed by the help of trade winds. These blows from east to west along the pacific ocean. These phenomena thus influenced the weather along the western and the eastern pacific ocean.

Find the equation of the line that is parallel to y=2x and goes through the point (-2, 3 )

Answers

Answer:

y=2x+7

Explanation:

Y=mx+b

y=2x has a rise of 2 and a run of 1 ( goes up two and over one)

to find use the change in slope formula (y2-y1)/(x2-x1) that are on the line

I used (0,0), (1,2)

(2-0)/(1-0)

2/1

your change in slope is 2

To find the y-intercept which is b you have to enter the point (-2,3) into the original equation

y=2x+b

3=2(-2)+b

3=-4+b

3+4=b

7=b

therefore your final equation is y=2x+7

what’s are 3 ways climate change has impacted the earth

Answers

Answer:

1. More heat alters ice, weather and oceans

These are some high-profile examples of how the extra warmth changes climate conditions and weather patterns:

2. Human life and prosperity suffer

Our health, economy, livelihoods, infrastructure and much more waver:

3. And natural habitats become hostile

Habitats on land and in the sea are changing, making them inhospitable for some species, while letting others move in and take over. Some ecosystems are at risk of collapsing.

I HOPE IT HELPS YOU : D

HAVE A NICE DAY...

Question 8
Review
Which activity could best prepare residents along the Mediterranean coast to reduce the loss of human life during a future tsunami?

Answers

Answer:

The best thing that inhabitants can do to reduce loss of life during a tsunami is to engage in an evacuation drill in some areas that are particularly vulnerable to earthquakes, and therefore, tsunamis. More specifically, these areas would be low lying neighborhoods that border the coasts.

Geographically speaking, Southern Italy and Greece are the most seismic regions of the Mediterranean, so evacuation drills should ideally be held there.

A seismogram shows that P waves travel _____.

Answers

Answer:

Faster then S waves.

Explanation:

Think of it like this. P waves can push and pull the sound waves through solids and liquid better than S waves. They are stronger. S waves can only go through solids. Thee solids have more compact molecules hence they travel slower. More help? Just ask me! :)

When studying the average number of children that are born to each woman in a country (assuming the mother lives to the end of her childbearing years), a researcher is studying the country’s __________.

Answers

Answer:

THE ANSWER IS total fertility rate.

Explanation:

Because

Infant mortality rate = how many children die

Maternal mortality rate = how many mothers die

Childhood obesity rate = how many children are overweight

Total fertility rate = how many children are born

When studying the average number of children that are born to each woman in a country (assuming the mother lives to the end of her childbearing years), a researcher is studying the country’s total fertility rate (TFR).

Select the best match between the PROCESSES that create new topography and the FORMS that you are exposed to through media. This matching question all relates to volcanic features in Hawaii. Group of answer choices Vog combines the words volcanic and smog. Vog is air pollution produced when sulfur dioxide and other gases and particulates are erupted into the atmosphere. Interactions with moisture and sunlight tends to make the vog worse. In the case of the May 2018 eruptions of Kilauea, the vog is being transported by the dominant winds. Please study this NASA data Links to an external site. about vog movement and match it to the best answer.

Answers

Answer:

According to NASA, the vog moves in south-west direction.

Explanation:

On May 2018 eruptions of Kilauea, the vog is being transported by the dominant winds in the direction where wind is blowing. On the basis of information provided by NASA,  the vog which is emitted from the volcano moves in south-west direction by trade winds. The vog moves in south-west direction because the winds were also moving in that direction and as a result  the vog is dispersed on a large area.





Which statements best describe the cladogram? Select three options.


Reptiles are the most primitive.


Birds and reptiles are most closely related.


Frogs are more closely related to fish than birds.


Frogs are more closely related to birds than fish.


Fish are the most primitive.

Answers

Answer:

The correct options are:

B, C and E.

Explanation:

The cladogram is a diagram which is used to demonstrate the theoretical relationship between groups of animals, called a phylogeny.

Phylogeny examines the relationship between different groups of organisms and their evolutionary development. It tries to trace the evolutionary history of all life on the planet.

Phylogeny stands on the assumption that all organisms share a common origin.

Thus a cladogram is used as a visual aid by a scientist studying phylogenetic relationships to examine the various organisms being and how they relate to each other.

Cheers!

Answer: 2,3,5

Explanation:

Often in courses you will need to store and retrieve files within folders. What is the name of the FOLDER in which the file named "script" is contained?

Answers

Answer:

The folder name is "script".

Explanation:

The file called "script" contains a type of instruction that computer systems must follow to allow software to do the work it was designed for. For example, let's say that you have software that should do monthly budget calculations, the "script" will present instructions showing the steps that your computer must follow to make these calculations.

The folder where the "scripts" are saved can have any name, but it is important that it has a simple name and easy to identify what the folder wants, the best option however, is to name it as "script".

Which of the following statements is true about the position of the Sun relative to Earth?
A)The Sun is furthest from the Earth during winter in the Northern Hemisphere.
B)The Sun is directly over Earth's equator during summer in the Northern Hemisphere.
C)The Sun is furthest from the Earth during summer in the Northern Hemisphere.

Answers

Option C) is the answer

This environmental strategy includes using solar and wind power.

Answers

Answer:

Renewable energy.

Which of the following methods can be used by officials to solve the problem of water pollution? Dispose chemical wastes in dustbins. Stop droughts and floods. Increase the number of factories. Use scientific solutions.

Answers

Answer:

"Dispose of chemical wastes in dustbins"  

Explanation:

Chemical wastes often end up in rivers or streams. By disposing chemicals wastes in dustbins, this would ensure the waste does not end up in the water. However, the waste would need to be properly disposed of using proper containers for the waste.

Answer:

A. Dispose of chemical wastes in dustbins

Explanation:

B is an obvious answer, but it only presents what has to be done, not a way to solve the problem. C is the exact opposite of what should be done to solve the problem of pollution. D is very vague, and doesn't detail any specific scientific solution. A is the answer!

brainliest if im right lol :)

Weather forecast and severe weather alert are issued by the

Answers

Answer :Meteorologist

Explanation: This person tells everyone about weather conditions such as rain, snow storms and even tornado alerts and high wind alerts

Weather forecast and severe weather alert are issued by the National Weather Service (NWS).

What is the most common political unit in our world today?

Answers

The answer is STATE

Answer:

STATE,COUNTRY OR NATION

Explanation:

STATE,COUNTRY OR NATION

Which of the layers of the Earth has the following characteristics? i. It is solid and extremely hot. ii. It is the innermost layer of the Earth. iii. It is around 800 miles thick. A. outer core B. inner core C. crust D. mantle Please select the best answer from the choices provided A B C D

Answers

Answer:

b. inner core

Explanation:

To solve this problem let's start by listing the information given. This will help us find which option best fits the characteristics provided to find the correct answer.

characteristics of mystery layer:

i. it is solid and extremely hot

ii. it is the innermost layer of the Earth

iii. it is around 800 miles thick

Now let's go through each option to determine which best matches the characteristics.

option a

outer core

The first characteristic of the mystery layer is 'it is solid and extremely hot.' The outer core of the earth, however, is a fluid layer. Therefore, this option cannot be correct.

option b

inner core

The inner core is a solid 'ball' and is about 10,800°F. It is also the inner, or last layer, of the earth and is around 800 miles thick. Therefore, it matches all characteristics of the mystery layer so, this must be the correct answer. If you would like to be sure, I also reviewed the last two options below.

option c

crust

Because the crust is the outermost layer of the planet, it does not match the second characteristic of the mystery layer. Therefore, this cannot be the correct answer to the question.

option d

mantle

Although the mantle does match the first characteristic, it does not match the second characteristic, which requires the layer to be the innermost layer of the earth. The mantle is one of the outer layers of the earth.

Now that all options are reviewed, we have determined the best solution to the problem. The correct answer to this question is b. inner core.

Answer:

inner core

Explanation:

To solve this problem let's start by listing the information given. This will help us find which option best fits the characteristics provided to find the correct answer.

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10 Which of the following represents thedomain of the function F(x) = 2x + 15?3 You can smell an open bottle of perfume in a room because __________.A. the liquid vaporizes and the resulting gas molecules wander about the roomB. the scent travels without needing a medium to travel throughC. the air molecules bond with some of the perfume, carrying it around the roomD. the perfume in the bottle is under pressure Which best describes earth's magnetic field lines? Will mark brainliest!Solve!9x +25+3x = 34 + 54HELP!!! In which process does water move from the air to the land?O A. PrecipitationO B. EvaporationO C. TranspirationO D. Percolation Help is needed! Is f(x) a function? Will mark BRAINLIEST thank you! Order 4.1 x 10^-3 , 0.041 , 4100 , 4.1 x 10^5 , 41,000 and 1.4 x 10^-3 from least to greatest a convex lens can produce a real image but not a viral imagea. trueb. false What is 4.75 x 10^11 Give two powers from each of the following: Executive Branch, Judicial Branch, and Legislative Branch. Gasoline price is $2.80 per gallon in August. The price increased by 15% in September, dropped 5% in October and dropped another 10% in November. What was the gasoline price in November?? Show work Prove that: (1+cot^2x)tan^2x = sec^2x A sheriff is interested in the average speed that people drive on Highway 50. Match the vocabulary word with its corresponding example. A sector of a circle with radius 20 cm has an area of 396 cm^2. Calculate, correct to 1 decimal place, (a) the sectoral angle (b) perimeter of the sector (c) volume of the cone formed when the sector is bent such that its straight edges coincide Solve for c.3 7c 20c = 7(7c 19) + 14cc = How was the Berlin Wall the physical manifestation of the Iron Curtain? How was it the symbol of the Cold War?PLEASE HELP!!!!! DUE TOMORROW!!!! How did anti-Semitism affect Jews in Nazi Germany? The data below are the monthly average high temperatures for New York City. What is the five-number summary? 40, 40, 48, 61, 72, 78, 84, 84, 76, 65, 54, 42 Select the correct answer below: A) Sample minimum: 42, Sample maximum: 78 Q1: 45, Median: 63, Q3: 77 B) Sample minimum: 40, Sample maximum: 84 Q1: 45, Median: 63, Q3: 77 C) Sample minimum: 40, Sample maximum: 42 Q1: 54.5, Median: 81, Q3: 70.5 D) Sample minimum: 40, Sample maximum: 84 Q1: 40, Median: 61, Q3: 76 Which table represents an exponential function?