I need help with 5-10

Answer:

 fever, cough and shortness of breath. In more severe cases, infection can cause pneumonia, severe acute respiratory syndrome and sometimes death.

Answer:

this is the answer

Explanation:

B The Daily News: Los suplementos vitamínicos ayudan a aumentar la absorción de alimentos

Answer:

they use carbon 14 which has a half life of 5730 years

Answer:

B

Explanation:

The circulatory system is a network consisting of blood, blood vessels, and the heart. This network supplies tissues in the body with oxygen and other nutrients, transports hormones, and removes unnecessary waste products.

Answer:

The circulatory system work at tissue level by following points

=nutrients are delivered throughout the body

Answer:

b

Explanation:

because jobs are available and a better life is guaranteed too

Answer: if new investigations occur, new questions would have to be asked to find out the things that are being researched.

Explanation:

The answers to the questions required for the design experiment above are :

The hypothesis of an experiment is a proposition which requires experimental testing in other to establish it's validity.

The Control Group refers to a portion of the subject which aren't given or exposed to the treatment used in an experiment.

The Experimental group are the portion of the subjects which are subjected to the treatment condition.

The Dependent variable is the measured variable is changes as the independent variables are tweaked.

Independent variable is the predictor variable, it causes a change in the output of the dependent variable.

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Answer:

Predators eat prey. When they do so, they are keeping the population or number of prey in check. Now, a lot of prey are either herbivores or omnivore, meaning plants are in their diet. If there were to be no predators, an absurd overpopulation of prey would arise. This would cripple the growth of young trees by the prey feeding on them, and overall would over-run their habitat, making the food sources scarce. When the food source gets so low they will die out or continue to move on to other surrounding areas and create the same problems.

hope this is a decent answer :)

Answer:

winds

Explanation:

Answer:

the answer is b hhshsbshushshs

Answer:

It's true cause it got no nucleus

Explanation:

[tex].[/tex]

Answer:

in picture A we can see that the environment is very dirty on the other hand in picture b the surrounding is really clean.

Explanation:

the following things should be done to maintain the situation in picture b÷

i) Participate in cleaning program.

ii) don't throw dust on the Road throw it in dustbin .

iii) Stop others from throwing dust in the road and make them clear about the importance of clean environment .

Answer:

Jupiter and Mars, probably Saturn too

Explanation:

Answer:

red blood cells burst.

Explanation:

Red blood cells placed in a solution with a higher water concentration compared to their contents (eg pure water) will gain water by osmosis, swell up and burst. Water will diffuse from a higher water concentration outside the cell to a lower water concentration inside the cell.

https://www.bbc.co.uk › revision

The effects of osmosis on animal

Red blood cells placed in a solution with a higher water concentration compared to their contents will gain water by osmosis, and get swell up and burst.

Red blood cells are responsible for transporting oxygen from your lungs to your body's tissues. Your tissues produce energy with the oxygen and release a waste, identified as carbon dioxide.

A type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body.

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#SPJ2

The teacher should clean the wound

Explanation:

the cut could've gotten something in it

Answer: c

Explanation: 3.0 is 1,000 times as many ions

The statement that best describes the difference is ; The substance with the lower pH has 1000 times as many hydrogen ions per volume of water. ( D )

Given that the substance have pH ; 3 and 6

To prove the statement above we will make use of the pH formula

pH =  -log(H⁺)

for substance with pH = 3

3 = - log(H⁺)

H⁺ ( hydrogen ions ) = 10⁻³

for substance with pH = 6

6 = - log(H⁺)

H⁺ ( hydrogen ions ) = 10⁻⁶

Hence we can state that the substance with the lower pH has 1000 times as many hydrogen ions per volume of water

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Answer:

1. The relationship is directly proportional; as temperature increases, volume increases in the same way.

2. An increase in pressure causes particles to move closer together, decreasing the volume.

3. It would increase.

4. V

5. The mass of each gas.

Just took it

Remember that the equation for the ideal gas is:

P*V = n*R*T

Where:

P = pressure

V = volume

n = number of moles

R = constant of the ideal gases.

T = temperature.

1) If the pressure is held constant (we also assume n is constant, because usually, the number of moles does not change).

Then we can write

V = (n*R/P)*T

and  (n*R/P) is a constant.

Then the above relation is a proportional relation.

So the correct option is C: The relationship is directly proportional, as temperature increases, volume increases in the same way.

2) If the pressure increases and the temperature is held constant, then the equation:

V = (n*R/P)*T

can be used.

Now the temperature is constant, so we can write this as

V = (n*R*T)/P

Where now (n*R*T) is a constant.

So now we have an inversely proportional relation, when P increases, the volume should decreases. And a decrease in volume happens because the molecules move closer together, so the correct option is C:

"an increase in pressure causes particles move closer together, decreasing the volume."

3) Now the volume is constant, then we can write:

P = (n*R/V)*T

Exact same thing as in the first case, this is a proportional relation, so if the temperature increases, also does the pressure.

The correct option is C again.

4) If the pressure decreases then temperature also decreases, as we saw above.

And as the temperature decreases, the volume increases, as we saw in point (2), then the correct option is D, i the pressure decreases, the volume increases.

5) We have two different gases with the same values of T, V, and P.

By the equation:

P*V = n*R*T

And knowing that R is a constant, we can see that n should also be the same value for both gases.

Then the molar volume of each gas, V/n, is also the same.

Finally, the only thing that can be different in the gases is the thing that does not appear in the equation, and that is density/mass. So we can conclude that the gasses have different masses (thus different density, as they have the same volume)

Then the correct option is B; the mass of each gas.

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Answer:

How is anyone supposed to answer that when there’s no pictures to match so we can answer it

Explanation:

Answer:

digestion our body takes the nutrients from the food we eat.

Therefore, i'd say this is a true statement.

Answer:

Enzymes are proteins that assist as natural reactants to promote up the standard of chemical responses inside of cells.

Explanation:

Enzymes are proteins that assist as natural reactants to promote up the standard of chemical responses inside of cells. Substrate(s) bind to an enzyme at the enzyme's current (or catalytic) site. Products are published, and the enzyme is reusable.

To learn more about Enzymes refer:

Explanation:

Oxygen and nutrients from food must be absorbed into the bloodstream to be delivered to cells for respiration. Waste materials such as carbon dioxide must be removed from cells into the bloodstream. Tissues contain capillary networks to allow these exchanges to occur at a cellular level.

Oxygen and glucose needs to be absorbed and waste products need to be removed for the proper functioning and maintenance of the body cells and systems.

Oxygen is an odor less and colourless gas that is needed by living organisms.

It is absorbed by living organisms because it serves as a source of fuel.

Glucose is a type of carbohydrate called monosaccharide which is gotten from food.

It is assimilated or absorbed into the body through the hormone insulin and serves as a source of energy.

Waste products of metabolism is removed from the body through the process of excretion. A typical example is the carbondioxide.

If Waste products are allowed to accumulate they cause poisoning which slows down vital chemical reactions.

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Answer:

Rainfall and temperature can affect the rate in which rocks weather. High temperatures and greater rainfall increase the rate of chemical weathering. 2. Rocks in tropical regions exposed to abundant rainfall and hot temperatures weather much faster than similar rocks residing in cold, dry regions.

Answer:

0.24

2.7

1.3

Explanation:

Density equals mass divided by volume. the mass of the cork is 5.7 and its volume(the amount of water it displaced) is 23.5 so [tex]\frac{5.7}{23.5} = 0.24[/tex]

the mass of the granite block is 2700. the formula to get the volume of a rectangular prism is Volume = length × width × height so 20 × 5 × 10 = 1000

Density equals mass divided by volume so [tex]\frac{2700}{1000} = 2.7[/tex]

Density equals mass divided by volume.  the pipes mass is 78 and its volume is 60(amount of water displaced) so [tex]\frac{78}{60} = 1.3[/tex]

Answer:

bag, human beings and bridge

Explanation:

This is the labelled diagram

I think you are right

Explanation:

Sample A and Sample D

Answer:

Given,

initial velocity= 25m/s

acceleration= 5 m/s

time= 3 s

final velocity= ?

We know that,

acceleration= final velocity- initial velocity/ time

or, 5 = final velocity- 25 / 3

or, 5*3 = final velocity- 25

or, 15+ 25= final velocity

Therefore, final velocity is 40 m/s.

Explanation:

v2 = v1 + at

v1 = 0

a = 2m/s

t = 20

v2 = 2 ×20 = 40 m/s

Answer:

sub-canopy

Explanation:

i think, sorry if im wrong