Chemistry Middle School

help i would give a crown and points and best answer

Help I Would Give A Crown And Points And Best Answer

Answers

Answer 1

Answer:

to transport oxygen to tissue and cells

to transport nutrition from the digestive system to tissue and cell

to transport carbon dioxide and waste out of cell

Explanation:

The main function of the circulatory system is to provide oxygen, nutrients and hormones to muscles, tissues and organs throughout your body

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I need it

Answer 2
1.) To transport oxygen to tissues and cells
2.)to transport carbon dioxide and waste out of cells
3.) To signal to our bodies that we need oxygen

Related Questions

The diagram below shows different waves.

By counting the number of crests that pass by a given point in a set amount of time, what you would be calculating?

Answers

Answer:

Frequency, since your looking at a specific time and a number of crests.

This is the frequency

Basic Terms - Frequency in physics is a cycle of a full radiation e.g. gamma ray’s have the highest frequency because they have high levels of energy

help i would give a crown and points and best answer

Answers

Okay so like all of those are right, so your best choice answer is probably the box below the first one, “To make blood cells and special proteins for transport”

Answer:

first box

Explanation:

i think it might be right but not 100% im srry. if its wrong u dont need to give me nun

The sun appears larger than other visible stars because it is ______ than they are.

Answers

Closer than they are

Answer:

c. closer

Explanation:

The sun isn't necisarilly bigger, hotter, or brighter than other stars, but it is much closer than any other star.

A bat wing is more similar in anatomical structure to a cat forelimb than to a bird wing. Answer the following questions about these structures.

A.Which pairs are homologous structures?


B.Which pairs are analogous structures?


C.Based on this, do you think a bat is more closely related to a cat or a bird? Explain your answer.

Answers

Answer:

The answer is homologous structures .

Explanation:

All the fore limbs that you mention are made up of same sets of bones. These vertebrates are all mammals, hence evolved from a common ancestral stock. So they all inherited a basic anatomical structure which later became adapted for different habits and habitats. These are regarded as homologous structures: anatomically similar, functionally different

Homologous structures

Scientists conducted an experiment to show whether the ability to see an object affects a person's idea of the mass of the object. They used the following procedure: Obtain two cardboard boxes of different sizes. Place rocks in each box so that both boxes have the same mass. Close each box and tie a string to it so that participants lift each box using the string. Blindfold half of the participants in the experiment. Ask participants to lift each box using the string and report which one they think has more mass. Record results. The table shows the results of the experiment

Answers

Answer: Visual information makes them think the larger box has more mass.

(Have a lovely day!)

visual into makes people think it’s heavier.

A bat wing is more similar in anatomical structure to a cat forelimb than to a bird wing. Answer the following questions about these structures.

Which pairs are homologous structures?


Which pairs are analogous structures?


Based on this, do you think a bat is more closely related to a cat or a bird? Explain your answer.

Answers

Answer: Which pairs are homologous - structures? The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale, In short term it is having the same relative position, value, or structure

Which pairs are analogous structures? - Examples of analogous structures range from wings in flying animals like bats, birds, and insects, to fins in animals like penguins and fish.  Also in short term it means comparable in certain respects, typically in a way which makes clearer the nature of the things compared.

Explanation: I do believe cats since bats actually belong to the super-order Pegasoferae, which contains horses, cats and dogs, cows, whales and hedgehogs.

Sorry if its wrong.  

i was going to ask if you can my help friend so can you answer his question, Biodiversity is important because living things depend on one another. True or false?
false
true
free brainliest

Answers

true, biodiversity creates different species animals depend on each other for food and other reasons so the answer is true.
true! biodiversity facilitates speciation, they plants and animals of the ecosystem all rely on each other to maintain ecological equilibrium.

Nitrogen is a diatomic element with five valence electrons. Create a model of a molecule of nitrogen.

Answers

This is the electron dot structure of nitrogen.

( sorry that my spelling of configuration is wrong)

hope it helps!!...

PLEASE MARK BRAINLIEST ♡

You spelling words and text messages sometimes messages and I don’t know why I can’t hear it lol lol

Wind is caused by differences in elevation.

True
or
False

Answers

Answer:

false

Explanation:

:)

I think the answer is false

Give one reason why trees are considered living things.

Answers

Answer:

Plants are living because they grow, take in nutrients and reproduce

Explanation:

Plants include trees, shrubs, a cactus, flowers, and grass. Plants, too, are living beings. Plants are alive because they reproduce, grow, and absorb nutrients.

Hope this helps!!

Trees are considered living things because they need oxygen to survive

pleas help i will give Brainless
For number 1 use the picture but the picture doesn't go with the others.

1.) Compared to wave A, wave B has a _____.



A.) longer wavelength and lower frequency
B.) shorter wavelength and lower frequency
C.) shorter wavelength and greater frequency
D.) longer wavelength and greater frequency


2.) When drawn on a coordinate plane with the x-axis as the baseline, a wave with a crest that is closer to the baseline has a smaller _____.

A.) amplitude
B.) wavelength
C.) equilibrium
D.) frequency

3.) A student moves the end of a compressed coiled spring up and down to demonstrate wave motion. She then moves the compressed coiled spring faster but keeps everything else the same. Which characteristic will increase?

A.) wavelength
B.) frequency
C.) amplitude
D.) crest

Answers

Answer:

first answer is B second answer is a and third answer is d

Compared to wave A, wave B has a shorter wavelength and lower frequency. So, the correct options of 1, 2 and 3 are B, A and D.

What is Wave?

A wave is defined as a propagating dynamic disturbance of one or more quantities that may be periodic, in which case those quantities oscillate repeatedly about an equilibrium value at some frequency.

Frequency and wavelength can be calculated by this formula,

[tex]v=\lambda f\\v = velocity\\\lambda = wavelength\\f = frequency[/tex]

A wave with a crest that is closer to the baseline has a smaller amplitude. When compressed coiled spring faster but keeps everything else the same, the crest will increase.

Thus, the correct options of 1, 2 and 3 are B, A and D.

Learn more about Wave, here:

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Remember that c is always about 300,000 km/s. Use the formula you identified to explain how the two factors in the formula are related on the electromagnetic spectrum.

Answers

To explain the electromagnetic spectrum , formula used is E=hcυ which indicates that all the factors in the formula are in direct proportion with each other.

What is electromagnetic spectrum?

The electromagnetic spectrum consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The spectrum is  composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.

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i give points crown and best answer pls i need it RNN

Answers

Answer:

1 blue- veins

2 red - arteries

3 O2 rich blood - Arteries

4 O2 poor blood - veins

5 blood toward heart - veins

6 blood away from heart - arteries

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Veins = Blue
Arteries = Red
Veins = 3
Arteries = 4
Veins = 5
Arteries = 6

Based on the experiment, do you think birds can just wash off the oil with water? Explain your answer.

Answers

Answer:

No

Explanation:

as it would stay sticked on them forerver amd a time of 2 months it will kill them

No because oil and water don’t mix because oil is insoluble so the water would just slip of the oil acting as a barrier therefore you cannot you need soap

Design an investigation that supports the claim that an increase in voltage OR an increase in the number of coils in an electromagnet, has an affect on the strength of the electromagnet. Be sure to include:

1. Problem/Question

2. Possible Data Table/Chart

3. Conclusion paragraph including data AND the effect of the increase in voltage or number of coils.

Answers

Answer:i dont know

Explanation:

i need point aaaaaaa

Which form of precipitation falls from the sky as solid flakes?

Hail
Rain
Sleet
Snow

(NEED ANSWER QUICK!)

Answers

snow!! it’s ice so it’s a solid as it falls down. once it melts it’s a liquid.

A lamp has been on for several hours, and its lampshade begins to feel warm. What causes this to happen?

Answers

Light is converted to heat
The heat from the light is going onto the lampshade!

Nitrogen is a diatomic element with five valence electrons. Create a model of a molecule of nitrogen. correctly

Answers

this is the electron dot structure of nitrogen.

(sorry that my spelling of configuration is wrong)

hope it helps!!

PLEASE MARK BRAINLIEST ♡

The answer is given in the image below.

How many covalent bonds can nitrogen form?

Nitrogen molecules include nitrogen atoms joined collectively. Nitrogen atoms can form three covalent bonds, so a triple bond bureaucracy among them. The structure of nitrogen is N≡N, showing that it has three shared pairs of electrons.

Nitrogen, which is situated on the pinnacle of organization 15 at the periodic table, has both 3 or 5 valence electrons. Due to the fact it is able to bond in the outer 2p and 2s orbitals, it is able to have three or five valence electrons.

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What is an electromagnetic wave? Use the model to describe the characteristics of these waves.

Answers

Electromagnetic waves are the type of waves that do not need a medium to travel in. For example, the sun's rays travel in space toward earth without any medium

Electromagnetic radiation contains waves of the electromagnetic field, which propagate through space and carry radiant energy. The radiations coming from the sun are electromagnetic waves.

What are electromagnetic radiations?

Electromagnetic radiation possesses waves of the electromagnetic field, which travel via space and carry radiant energy. These waves include microwaves, radiowaves, infrared rays, visible light, UV rays, X- rays, and gamma rays.

Electromagnetic waves oscillate with the electric field and magnetic fields. Electromagnetic waves exhibit periodic changes in the electric field or magnetic field.

Depending on the periodic change in the waves that take place and the power produced in the waves, different wavelengths or frequencies of the electromagnetic spectrum are produced.

The effects of this radiation on chemical compounds and biological organisms are related to the power of the radiation and its frequency.  

In order of increasing frequency and decreasing wavelength, electromagnetic waves are organized in the electromagnetic spectrum.

Learn more about electromagnetic radiation, here:

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Examine the diagram shown. Which are the correct labels for
continental plates 1 and 2?

Answers

Answer: Please give us the diagram to Give you the answer

Explanation:

We need the diagram brooo

100 POINTS!!!
Pls help me with my lab report for chemistry ANSWER QUICKLY


Lab Report: Thermal Energy Transfer

Answers

what do u need help with u pls respond quickly

Different masses will change its temperature at different rates when exposed to the same amount of thermal energy because the amount of mass affects an object’s ability to absorb thermal energy. Different materials will change the temperature at different rates when exposed to the same amount of thermal energy because each substance has its own specific heat.


i give points crown and best answer

Answers

Answer:

1.v

2.a

3.a

4.v

5.a

6.v

Explanation:

V
A
A
V
A
V
Answer is given

Explain Neil Bohr's Atomic Model
Headings Are Mandatory In Your Answers

Answers

Answer:

Bohr model of the atom. In the Bohr model of the atom, electrons travel in defined circular orbits around the nucleus. The orbits are labeled by an integer, the quantum number n. Electrons can jump from one orbit to another by emitting or absorbing energy.

Explanation:

Please check out the attachment for the explanation.

I'll give the person with the right answer brainly Please help!!

Answers

Answer:

Explanation:

1. Gravity

2. Meteor

3. Big Bang

4. Heliocentrism theory

5. Outer planets

6. Orbit

7. Inner planets

8. Galaxy

9. Solar system

10. Rotation

(Sorry if some of the answers are wrong, the picture is not clear)

1. Meteor
2. Gravity
3. Big Bang
4. Outer planets
5. Heliocentrism theory
6. Orbit
7. Galaxy
8. Inner planets
9. Solar system
10. Rotation

Need science words that start with X not X-Ray.

Answers

Answer:

Xenoblast,Xylopal,Xenon,

Explanation:

Xerophyte, Xenolith, Xylopal
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