An ecosystem is like a machine that cycles matter by using

Drag each label to the correct location on the chart match the function to the type of tissue

mixas84 [53]

Can you give more information?

4 0

3 years ago

Write your essay about the first two laws of thermodynamics or energy.

kirill [66]

Do not worry, for I have you covered

The First Law of Thermodynamics

The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. For example, turning on a light would seem to produce energy; however, it is electrical energy that is converted.

A way of expressing the first law of thermodynamics is that any change in the internal energy (∆E) of a system is given by the sum of the heat (q) that flows across its boundaries and the work (w) done on the system by the surroundings:

Δ

E

=

q

+

w

This law says that there are two kinds of processes, heat and work, that can lead to a change in the internal energy of a system. Since both heat and work can be measured and quantified, this is the same as saying that any change in the energy of a system must result in a corresponding change in the energy of the surroundings outside the system. In other words, energy cannot be created or destroyed. If heat flows into a system or the surroundings do work on it, the internal energy increases and the sign of q and w are positive. Conversely, heat flow out of the system or work done by the system (on the surroundings) will be at the expense of the internal energy, and q and w will therefore be negative.

The Second Law of Thermodynamics

The second law of thermodynamics says that the entropy of any isolated system always increases. Isolated systems spontaneously evolve towards thermal equilibrium—the state of maximum entropy of the system. More simply put: the entropy of the universe (the ultimate isolated system) only increases and never decreases.

A simple way to think of the second law of thermodynamics is that a room, if not cleaned and tidied, will invariably become more messy and disorderly with time – regardless of how careful one is to keep it clean. When the room is cleaned, its entropy decreases, but the effort to clean it has resulted in an increase in entropy outside the room that exceeds the entropy lost.

Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a measure of the molecular disorder, or randomness, of a system.

7 0

3 years ago

The act of making your body engage in movement that results from skeletal muscle contraction is called ____________ .

olga55 [171]

Physical activity
I hope this helps!

7 0

3 years ago

What is the projected temperature difference between the highest growth of carbon dioxide emissions and our current rate of emis

harina [27]

Answer:

c

Explanation:

4 0

3 years ago

¿Qué es la ósmosis? ¿Qué efectos osmóticos se producen cuando las células animales o vegetales se enfrentan con soluciones que t

Lena [83]

Answer:

1 (english) -Osmosis is a physiological process where animal and plant organisms balance their aqueous internal environment. Osmosis is a spontaneous process of nature where there is a membrane and two compartments that present a difference in solute or concentration of solute between both compartments, this membrane that we name only allows the transfer of water, with which the water seeks and transfers this membrane from one side to the other, balancing the concentrations of both compartments and reaching equilibrium.

It is essential to clarify that the direction of the water flow will always be in the direction of the area with the highest concentration, that is, it passes from the compartment with the lowest concentration to the one with the highest concentration to dilute it.

In osmosis there is a phenomenon that occurs in this membrane by allowing the passage of water called osmotic pressure.

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1 (spanish) - La osmosis es un procesos fisiologico donde los organismos animales y vegetales equilibran su medio interno acuoso. La osmosis es un proceso espontaneo de la naturaleza donde existe una membrana y dos compartimientos que presentan una diferencia de soluto o concentracion de soluto entre ambos compartimientos, esta membrana que nombramos solo permite el traspaso de agua, con lo cual el agua busca y traspasa esta membrana de un lado a otro equilibrando las concentraciones de ambos compartimientos y llegando al equilibrio.

Es fundamental aclarar que la direccion de corriente de agua siempre va a ser en direccion hacia la zona de mayor concentracion, o sea que pasa del compartimiento de menor concentracion a la de mayor concentracion para realizar la dilucion de esta.

En la osmosis hay un fenomeno que se produce en esta membrana al permitir el pasaje de agua que se llama presion osmotica.

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2- (english)living organisms can face media with the same osmolarity (isosmolar) as their internal environment (in this way there is no water flow), or a hyposmolar medium (there is water flow into the living organism and in these cases the animal or vegetable usually accumulate liquid or edematize), and in hyperosmolar media (where the living organism dehydrates and loses liquid by donating water to the surrounding environment).

2-(spanish)los organismos vivos pueden enfrentarse frente a medios con la misma osmolaridad (isosmolar)que su medio interno ( de esta manera no hay flujo de agua), o a un medio hiposmolar (hay flujo de agua hacia el interior del organismo vivo y en estos casos el animal o el vegetal suele acumular liquido o edematizarse), y en un medios hiperosmolares (donde el organismo vivo se deshidrata y pierde liquido donandole agua al medio que lo rodea).

Explanation:

examples:

In the cases of hyperosmolar media and living organisms that dehydrate, a good example is when salt is thrown at slugs so that they go into osmotic shock and die, they donate all their internal liquid to the external environment to balance the medium.

In those cases where the medium is hyposmolar is when people become overhydrated and usually have swelling in the lower limb.

and lastly, in those isosmolar environments it is in animals that live in very salty waters to be able to subsist and maintain life, in this way their internal concentration is high and the same as the salty external environment generating balance, since if they would live in water sweet they will die for an explosion.

5 0

4 years ago