Why are echinoderma animals even though they have no brain?

Answers

Answer 1

Answer:

Cuz they have a skeleton

Explanation:


Related Questions


Draw a diagram of THREE weather instrument and explain how it is used
Discuss the importance of weather forecasting.​

Answers

Explanation:

The first picture is of hygrometer.

Hygrometer, instrument used in meteorological science to measure the humidity, or amount of water vapour in the air.

Hygrometer works on the phenomenon called evaporative cooling. When water evaporates from any surface, it becomes cool because water molecules take heat energy from the surface during the evaporation. Due to this cooling effect wet bulb always shows low temperature than the dry bulb.

The second picture is of thermometer.

Thermometer for measuring air and sea surface temperature.

A thermometer has a glass tube sealed at both ends and is partly filled with a liquid like mercury or alcohol. As the temperature around the thermometer's bulb heats up, the liquid rises in the glass tube. The glass tube is mounted on a backboard that is marked in units called degrees.

The third picture is of barometer.

Barometer for measuring atmospheric pressure.

The barometer works by balancing the mercury in the glass tube against the outside air pressure, just like a set of scales. As air pressure increases—that is, as the air becomes heavier—it pushes more of the mercury up into the tube. ... So the level of mercury in the tube provides a precise measure of air pressure.

Importance of weather forecasting:-

Systematic weather records play an effective role in various professions, particularly for agriculture and businesses that are dependent on it. Agricultural processes like planting and harvesting can be planned better and carried out more efficiently if long-term weather patterns can be estimated.

On the other hand, Airlines is another region where weather plays a vital role. They need to recognise the local weather conditions in order to schedule flights. Weather forecasting helps them make perfect daily decisions, and may even help keep us out of danger.

The scale drawing of a porch is 8 inches wide by 12 inches long. If the actual porch is 12 feet wide, what is the length of the porch?

Answers

Answer:

The length of the porch is 18ft

Explanation:

When we do a scale drawing, each unit in the scale drawing represents some other unit in the actual thing that is being drawn, defined by a factor of scale k.

In this case, we know that in the scale drawing the porch is 8 inches wide, and we know that the actual width of the porch is 12 ft.

Then for a factor of scale k we have:

8 in = k*12 ft

(8in/12 ft) = k.

And this scale factor is the same for every measure of the drawing.

Then if the length of the actual porch is L, the length in the scale drawing will be k*L

And we know that the length in the scale drawing is 12 inches, then:

12 in = k*L

12 in = (8in/12 ft)*L

12 in*(12ft/8in) = L = 18ft

The length of the porch is 18ft

When was the last time you looked up to the sky and observed thoughtfully?

·If you did,what mostly were your observations?​

Answers

Answer:

I hope that we are free from these disaster(codiv19) and I really hope that chemistry, biology, physics and addmath disappear from this world coz it's really difficult and make me struggling every time till I'm brainless

1. Briefly explain how the cloud type for any particular day can be determined.
2. Name TWO types of rain clouds.​

giving away brainlist

Answers

Explanation:

1. High clouds:-

a) Cirrus clouds :-

Cirrus clouds are white wispy clouds that stretch across the sky. By all accounts, cirrus clouds indicate fair weather in the immediate future.

b) Cirrostratus :-

Cirrostratus tend to be sheet-like and cover the whole sky. You can usually tend to see the sun or moon through them. Their pressence usually indicates moist weather within the next 12 - 24 hours.

c) Cirrocumulus :-

Cirrocumulus clouds tend to be large groupings of white streaks that are sometimes seemingly neatly aligned. In most climates these mean fair weather for the near future.

Cirrocumulus clouds tend to be large groupings of white streaks that are sometimes seemingly neatly aligned. In most climates these mean fair weather for the near future.However, in the tropics, these clouds may indicate an approaching tropical storm or hurricane (depending on the season).

2.Middle clouds :-

a) Altostratus :-

Altostratus are grey and/or blue clouds that cover the whole sky. They tend to indicate a storm some time in the very near future since they usually precede inclimate weather.

b) Altocumulus :-

Altocumulus are grayish-white clouds blanketing the entire sky. The tend to look like large fluffy sheets in which there is a lot of contrast between light and dark. Sun does not pass through them. If you see them in the morning, prepare for a thunderstorm in the afternoon.

3. Low clouds :-

a) Stratus :-

Stratus are low-lying solid clouds that are often formed when fog lifts off the ground. They obviously look like an elevated fog. Often they bring drizzle or light snow.

b) Stratocumulus :-

Stratocumulus are low-lying bumpy and grey clouds. They do not bring precipitation. They also do not cover the entire sky and tend to come in rows and patches.

c) Nimbostratus :-

Nimbostratus is your standard rain cloud. It is a large flat sheet of grey cloud with a little bit of differentiation. If you see these, chances are it's raining outside.

4.Clouds with vertical mobility:-

a) Cumulus:-

Cumulus clouds are your stereotypical white "cottonball" clouds. So long as the clouds remain low clumps floating across the sky, there will be fair weather. However, you need to keep an eye on these clouds because any vertical growth can indicate the start of a large storm.

b) Cumulonimbus :-

Cumulonimbus are cumulus clouds that have grown vertically into an anvil-like shape. The anvil tends to point in the direction the storm is moving. These clouds bring most dangerous weather such as rain, lightning, hail and tornadoes.

2. Two types of rain clouds : -

Nimbostratus and cumulonimbus clouds.

Explain how the Mayan calendars worked.

Answers

Answer:

Wheels Working Together The Mayan Calendar consists of three separate corresponding calendars: the Long Count, the Tzolkin (divine calendar), and the Haab (civil calendar). Each of them is cyclical, meaning that a certain number of days must occur before a new cycle can begin. The three calendars are used simultaneously.

Explanation:

How did the islands of the Caribbean form?

Answers

Answer:

the island crashed into new Mexico and the land shook and it got its land and the people live on the land and gave the land a name

When the center of a mature wave cyclone passes to the south, you should expect: When the center of a mature wave cyclone passes to the south, you should expect: rising pressure and fair weather. winds shifting from east to north and heavy precipitation. thunderstorms. to experience a veering wind shift.

Answers

Answer:

C) backing winds and foul weather.

Explanation:

Both regional and flash floods result from the release of large quantities of precipitation and/or snow melt.

a. True
b. False

Answers

Answer: a. True

Explanation:

Both regional and flash floods are a result of the release of large quantities of precipitation and/or snow-melt.

Winter and spring rains combined with melting snow overfill river basins and flood the banks, triggering regional floods. Regional floods can also happen when there's lots of rain, which saturates the soil and allows runoff to flood into streams and rivers. A flash flood, also triggered by heavy rains, is a local flood, meaning that it occurs in a small geographical region.

Which of the following would be an example-of outsourcing?
A -business owner moves her/his factory overseas to India to hire cheap labor.
B-An entrepreneur works in their home producing vinyl decals on shirts to sell on Etsy
C-An entrepreneur is forced to shut down their business by the government to preserve national resources
D-A business owner chooses to keep their factory in America to provide jobs to Americans.

Answers

Outsourcing is an agreement in which one company hires another company to be responsible for a planned or existing activity that is or could be done internally, and sometimes involves transferring employees and assets from one firm to another

What criteria (data points) were the NOAA buoys collecting to address the sub-problems
faced by Cleveland Water? Which of these criteria should have highest priority when
determining a solution to the sub-problems? |

Answers

The criteria that were collected by NOAA to address the sub-problems faced by Cleveland Water includes:

Dissolved Oxygen LevelWater TemperaturePressure Salinity

What is the Cleveland Water?

It is a corporation that uses technology to drive an economic development and innovation about water in North eastern part of Ohio.

Hence, the Salinity of the water should have the highest priority when determining a solution to the sub-problems of the water in Ohio.

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Which one is not a chemical component of magma?
Group of answer choices

water vaper

carbon dioxide

iron

helium

oxygen

aluminum

Answers

Answer:

iron

Explanation:

A physical change from the solid state to the liquid state is often caused by:

Answers

Answer:

Heat (the phase change caused by heat is called melting)

A physical change from the solid state to the liquid state is usually caused by melting

Explain why soils have different level of consistency.​

Answers

Answer:

Soil consistency is the strength with which soil materials are held together or the ... For wet soils, it is expressed as both stickiness and plasticity, as defined below. ... First, determine stickiness, that is, the ability of soil materials to adhere to other.

How is coal obtained? (How do we get it)

A) It is found deep underground
B) It is found only in the oceans
C) It is mined from hillsides and mountains

Answers

Answer:

C is probably the best answer

Help please brainly !!!!!!!

Answers

Answer:

650 milliliters =0.65 liters

Which classification best describes polygon

Answers

This polygon is called Nonagon.

The diagram below shows how Earth spins on its axis, causing day and night.
Which term describes the movement shown?
O orbit
O revolution
rotation
tilt

Answers

Answer:

rotation .....hope it helps

1.1
A river profile is ...
a) a view of the river channel.
b) a view of the watershed.
c) a view drainage pattern.
d) a view of water table.

Answers

Answer:

I believe the answer is A) a view of the river channel.


Both the Sun and the Moon influence Earth's tides, but the Moon's influence is greater than
the Sun's. Why is this the case?

Answers

Even though the sun is much more larger and has stronger overall gravity than the moon, the moon is much closer to the earth so that is the reason why its gravitational gradient is stronger than that of the sun

4. Which challenges prompted New York City to take these actions? *
In 2015 the New York City Mayor's office reported that the city
had recently accomplished the following:
Reduced carbon emissions by one-fifth and achieved the
city's cleanest air in 50 years
Upgraded building codes to prepare for extreme weather
like flooding and high winds
Added nearly one million trees and six million square feet
of reflective rooftop to the city landscape
a. increasing threats to large urban areas by foreign and domestic terrorism
b. a widening gap in income levels between socioeconomic groups in society
c. escalating costs of providing health care and social services for senior citizens
d. Aging infrastructure and pollution caused by high population density

Answers

The correct answer is D. Aging infrastructure and pollution caused by high population density

Explanation

During the nineteenth and twentieth centuries the population of New York City increased due to industrialization and commerce, this caused large pollution and the city grew disorganized. That caused that in the twentieth century the city had high levels of pollution and infrastructure that required repairment. Due to this in the first decade of the new century, the authorities of the city started a plan to resolve those issues. According to the above, the correct answer is D. Aging infrastructure and pollution caused by high population density

Which of the following types of infrastructure would city planners in a medium sized city most likely invest in to increase residents safety?

A: construction of traffic roundabouts in a place of stop signs and traffic lights

B: installing pavers in place of paved roads on main downtown streets

C: offering weekly recycling pickup by city waste management officials

D: expanding fiber optic internet service to peripheral regions within city limits

E: clearing farmland for future residential developments

Answers

Answer:

Im in AP Human Geo, and I can say it's either (A) or (E), but I would go with A.

Explanation:

The correct option is A.

City planners in a medium-sized city most likely invest in the construction of traffic roundabouts in a place of stop signs and traffic lights to increase residents' safety.

City Planner Responsibilities:

Planning the design and construction of new urban infrastructures. Assisting in the management of a city's current infrastructure and urban resources. Designing and adapting city plans for population growth and development. Keeping communities informed of city planning developments.

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Question 2
5 pts
Hypothesis
Take a moment to study the surface Pressure Map. Write a hypothesis using an if/then statement
that will help explain what you expect the areas of high and low pressure to be once the isobars are
drawn.

Answers

If there is a significant difference in air temperature between two adjacent regions, then it is expected that areas of high pressure will form over the colder region, while areas of low pressure will develop over the warmer region.

Based on the given information, we can hypothesize that the distribution of high and low-pressure areas on the surface Pressure Map will be influenced by the temperature gradient across different regions. If there is a substantial difference in air temperature between adjacent areas, then we can expect the formation of areas of high and low pressure. The colder region will experience higher air pressure, as the colder air tends to be denser and sinks, creating an area of high pressure. Conversely, the warmer region will exhibit lower air pressure, as the warmer air expands and rises, leading to the formation of an area of low pressure.

The temperature gradient plays a crucial role in atmospheric circulation patterns, as it drives the movement of air masses and the development of pressure systems. The pressure differences between high and low-pressure areas influence wind flow, leading to the movement of air from high-pressure to low-pressure regions. Therefore, understanding the relationship between temperature gradients and pressure systems is vital for predicting weather patterns and identifying areas of potential atmospheric disturbances.

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Help please brainly !!!!!!!

Answers

You need an image. Do you mind telling me the question?
insert a picture of the question and i can help!

What are some of the main landforms and waterways found in North Africa?

Answers

It has the Nile river in the east, the Sahara desert and the Atlas Mountains which are in the west.

whats the difference between an air mass and a front?

Answers

Explanation:

An air mass is a body of air with a relatively constant temperature and moisture content over a significant altitude. Air masses typically cover hundreds, thousands, or millions of square kilometers. A front is the boundary at which two air masses of different temperature and moisture content meet.

Wich type of climate can be found in mexico's yucatan peninsula a. polar. b. highland. c. tropical. d. desert. WORTH 10 POINTS + BRAINLIEST WHOEVER ANSWER S CORRECTLY​

Answers

Answer:

C. Tropical

Explanation:

a plant moves fastest when it is near the sun. true or false

Answers

Answer:

true

Explanation:

Which of the following landforms is responsible of MOST of Egypt's population
living on 3% of the land?
Empty Quarter
Sahara Desert
Mediterranean
Oases

Answers

Answer:

Mediterranean

Explanation:

WILL MARK BRAINLIST! what is italy shaped like? ​

Answers

Answer:

its shaped like a high heled shoe

Explanation:

Angle Review worksheet answers?

Answers

Answer:

Please tell me what type theres many out there then ill revise anser and this is math not geography :)

Explanation:

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