3a. Which paragraph is best illustrated by
the image?

Explanation:

v2 = v1 + at

v1 = 0

a = 2m/s

t = 20

v2 = 2 ×20 = 40 m/s

Hi,

The answer is D

Hope this helps

Answer:

The entire food web would be affected

The entire food web would be affected if the amount of grass drastically decreased.

A food web is an chart or diagram in the form of a web showing the interdependence of different organisms as they obtain food.

All organisms are related in a food web.

In the food web shown, grass is the primary producer.

A drastic decrease in the amount of grass will affect all the organisms in the food web.

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Answer:

It's true cause it got no nucleus

Explanation:

[tex].[/tex]

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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Explanation:

This is the labelled diagram

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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A cell sends messages to itself via autocrine signalling. So the correct option is B.

The type of cell signalling in which a cell releases a signal from itself and then that signal binds to the same cell. The chemical signal that is released from the cells is known as autocrine agents or autocrine signals.

Autocrine agents are usually hormones or chemical signals. They act as ligands and then bind to the receptors that are present in the cells that have produced them. Such kind of receptors is known as autocrine receptors.

When the autocrine agents bind to the autocrine receptors, autocrine stimulation occurs. This is a chemical reaction that is induced within for the necessary functions that need to happen.

This autocrine signalling is observed at early developmental stages and organ formation happens. These are for pain sensation & inflammation regulation.

Cells infected with viruses also produce autocrine signalling. Autocrine signalling also has an important function in cellular homeostasis. For example, progesterone is important as an autocrine signal molecule in breast cancer.

Therefore, the correct option is B.

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Answer:

perserverance

Explanation:

they want to find out whats happening through inquiry and experiments.

The humans releasing carbon dioxide, tapeworms entering a human’s intestines or remora sharks attaching themselves to whales are examples of mutualism, parasitism, and commensalism.

In mutualism, humans release carbon dioxide that plants need; plants provide oxygen that humans need as both species benefit from the interaction. In parasitism, tapeworms enter a human’s intestines through contaminated water and steal nutrients from the human one species benefits at the expense of the other.

In commensalism, remora sharks attach themselves to whales by way of an adhesive disk on their dorsal surface. They then feed on the scraps from the whale’s meals  as one species benefits from the interaction, while the other is neither helped nor harmed.

Therefore, humans releasing carbon dioxide, tapeworms entering a human’s intestines through contaminated water and stealing nutrients from the human or remora sharks attaching themselves to whales are examples of mutualism, parasitism, and commensalism.

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I think you are right

Explanation:

Sample A and Sample D

Answer:

Asexual Reproduction advantage: Time Efficient; no need to search for mate, requires less energy.

Asexual Reproduction disadvantage: No variation - if the parent has a genetic disease, offspring does too.

Sexual Reproduction advantage: Variation, Unique, organism is more protected.

Sexual Reproduction disadvantage: Requires two organisms, requires more energy.

Explanation:

Hope this helps :)

biology is a branch of science that deals with living organisms and their vital processes.

Answer:

As a field of science , biology helps us understand the living world and the ways its many species (including humans ) function, evolve, and interact. advances in medicine , agriculture , biotechnology, and many other areas of biology have brought improvements in the quality of life

Answer:

b

Explanation:

because jobs are available and a better life is guaranteed too

Answer:

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

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:

this is the answer

Explanation:

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

Structure C, D, and E in the diagram represent the endoplasmic reticulum, the ribosome, and the Golgi apparatus respectively.

When the ribosomes are attached to the endoplasmic reticulum, they give it a rough appearance.

The ribosome, endoplasmic reticulum, and the Golgi apparatus work together in the synthesis and transport of protein within the cell. In other words, they are all involved in the secretory pathway of cells.

In other words, the 3 organelles work together to form the secretory pathway of the cell. They are involved in the synthesis, packaging, processing, and eventual transport of proteins to their target sites.

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Answer:

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

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:

Answer :

ANSWER :

1. Understanding environmental objects.For example: doing research on a plant

2. Understand the tools used in researchFor example: a researcher must know the usefulness of a research tool, if he wants to research something

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By : HAFIKAL KHALIQ

FROM INDONESIAN (✯ᴗ✯)

Answer:

Jupiter and Mars, probably Saturn too

Explanation:

Answer:

Wind erosion in the United States is most widespread on agricultural land in the Great Plains states. Wind erosion is also a serious problem on cultivated organic soils, sandy coastal areas, alluvial soils along river bottoms, and other areas in the United States.

Answer:

The wavelength is the distance between 2 crests or troughs

(crests and troughs are the maximum upwards and downwards displacement from the equilibrium). Another way to phrase this is the length of one complete wave cycle.

(:

Answer:

a weightlifter lifts a 20 kilogram barbell above his head

Answer:

I think it's B " Weightlifter lifts a 20 Kg barbell above his head"

Answer:

bag, human beings and bridge