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Answer:

The girl traveled 160 km.

Explanation:

40 km per hour, she rides her bike for 4 hours: 4x40=160

Answer:

Algae is a primary producer

Explanation:

they use inorganic ions, co2, h2o and solar energy the complex organic molecules are produced. They release oxygen in this process. Algae, cyanobacteria and plants indirectly produce all food and all oxygen for all living organisms on our planet

Answer: 11. 10% is the concentration of solutes, 12. Osmosis is the net movement of solvent through a membrane according to the concentration of the solution.

Explanation:

Osmosis is a phenomenon that explains the movement of a solvent through a semi-permeable membrane without expenditure of energy, where the movement is through simple diffusion.

The tonicity is the total concentration of all solutes in the solution. Then, when a solution has a few particles, it has a low osmolarity, while a solution with many particles has a hight osmolarity. But, when there are two solutions separated by a permeable membrane to water (and not to the solutes or particles) the solvent (water) will move from the lower osmolarity side to the higher osmolarity side (which means, water moves from a region of low concentration to a region of high concentration)

To compare osmolarity of solutions, we use the terms hypertonic, hypotonic and isotonic. This is done, for example, to compar the osmolarity of a cell with the osmolarity of the extracellular fluid around it.  If the extracellular fluid has a lower concentration than the fluid inside the cell, it is hypotonic with respect to the cell. In this case, the solvent will go into the cell.  If the extracellular fluid has a higher concentration than the fluid inside the cell, it is hypertonic and the solvent will leave the cell from the region of lower solute concentration to the region with more solutes. At last, an isotonic solution is when the extracellular fluid and the cell has the same osmolarity and there will be no net movement of water in or out of the cell.

Increasing on mass would mean that there has been a net movement of water into the bag, because the solution was hypotonic. A decreased on mass mean that there has been a net movement of water out of the bad, because the solution was hypertonic. And if there has been no change or a very little mass change, it means the solution was isotonic, the same osmolarity or concentration of solutes was found inside and outside the cell.

Taking into account the concepts of tonicity and osmolarity, we can explain the process of dialysis which is the process of separating molecules across a semi-permeable membrane in a solution by the difference in their osmotic pressure. It is a laboratory technique where a solution that has many types of different solutes, is put into a semi-permeable sealed dialysis bag, (such as a porous cellulose membrane). Then it is placed in a container with a different solution, or pure water (which has a lower osmolarity). Molecules such as DNA or proteins are larger than the diameter of the pore thereby they are retained within the dialysis bag. However, molecules that are small enough to pass through the pores, such as water, tend to move in or out of the dialysis bag in the direction of the lowest concentration. It is usually used to remove salt from a protein solution.  Then, if a dyalisis tube is labeled as 10%, it means its solute concentration is 10% of to the total volume of the dialysis bag.

Answer:

What I expect would happen: First, there would be no clouds. Lack of clouds would mean there would be no rain and the average temperature of the Earth would increase, resulting in large areas of land becoming desert.

Explanation:

The water cycle is the process where water falls as rain, is transported via rivers and streams to lakes and oceans, evaporates into the sky, condenses into clouds, and falls as rain again. Here's a diagram:

water.usgs.gov

water.usgs.gov

So what would happen if there were no condensation stage?

The condensation stage is the one where water vapour gathers together into clouds (and when the clouds become heavy enough with vapour, release water as rain). So the first answer is that there would be no clouds.

Without clouds, I foresee a few things happening:

From clouds come rain. With no clouds, there would be no rain.

Clouds move moisture from lakes and oceans (where it evaporates up) to mountains and other places inland that spark rainfall. And so vast stretches of land would become desert.

Clouds reflect sunlight and help cool the Earth. With no clouds, the average temperature of the Earth would increase significantly.

And so to summarize what I expect would happen. First, there would be no clouds. Lack of clouds would mean there would be no rain and the average temperature of the Earth would increase, resulting in large areas of land becoming desert.

Explanation:

Answer:

Other bacteria can BUT miasma causes a lot.

Explanation:

miasma causes illnesses like the cold, malaria, influenza etc...!

Hope this helped <3

Answer:

The answer is ATP, however, NADH is part of what goes into producing ATP.

Happy holidays!

Answer:on part A,the white trait is recessive,and the purple trait is Dominant.

Explanation:

Answer:

option A.thermal energy  because if a  bond breaks it loses energy in the form of heat which is thermal energy.

Explanation:

Answer:

ik im late but its chemical energy

Explanation:

Answer:

Polar bodies serve to eliminate one half of the diploid chromosome set produced by meiotic division in the egg, leaving behind a haploid cell.

Explanation:

Answer:

The nucleus in a cell is like a brain in a human. It is the power house. The nucleus tells everything in the cell what to do and when to do it.

Explanation:

Answer:the nucleus is an organelle found in eukaryotic cells. The nucleus hold most of the genetic material from the cell.

Explanation:

Answer:

Not sure if theres supposed to be a pic or chart with this but if its any help, recessive traits only show when theres no dominant traits present and both parents need recessive genes

Answer: The grasshoppers are the herbivorous insects. These insects feed on leaves and grasses. ... The population of predatory birds, snakes and other animals feed on grasshoppers. If the grasshoppers become suddenly extinct, then the population of higher organisms will also decline in number or even extinct.

Hope this helps....... Stay safe and have a Merry Christmas!!!!!!!!! :D

I also want to say something.... My account got deleted yesterday and i would like if you would add me.....

Answer:

The birds would either go hungry or have to find something else to eat.

Explanation:

Grasshoppers are on most birds' diet so if the grasshoppers suddenly dissapeared, a lot of birds would be without a food source. So, those birds would either go hungry with nothing to eat or a meal substitute.

Answer:

Turgor potential or pressure is potential also known as pressure potential takes place in a plant cell that exerts pressure on the walls of the plant cell due to the movement of water through osmosis.

Role of cell turgor:

1. regulates the shape of the cell.

2. It provides rigidity for the structure of cells

3. High turgor pressure opens stomatal pore low turgor pressure closes the stomata.

4. support to soft tissues like the parenchyma.

5. keeps leaves oriented to the surface available to light.

Answer:

Form the cell membrane around food to create a vacuole that is kept separate from the rest of the cytoplasm while enzymes break down the food.

Cells maintain homeostasis without using energy by relying on passive transport processes.

Passive transport mechanisms do not require the input of cellular energy (ATP) and instead rely on the inherent kinetic energy of molecules and the concentration gradients of substances.

One common example of passive transport is simple diffusion, where molecules move from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Similarly, facilitated diffusion utilizes protein channels or carriers to facilitate the movement of specific molecules across the cell membrane without energy expenditure.

Osmosis is another passive process where water molecules move across a selectively permeable membrane to balance the concentration of solutes on both sides.

By utilizing these passive mechanisms, cells can maintain a stable internal environment and achieve homeostasis without the need for energy expenditure.

Know more about homeostasis:

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Answer: True

Explanation:

Answer:

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Explanation:

Answer:

It's 1

Explanation:

Ionic bonding is from metal to metal and happy holidays to you too! <3

Answer:

Moistening food and helping to create a food bolus so food can be swallowed easily

Answer:

See explanation

Explanation:

A catalyst refers to any substance that increases the rate of a chemical reaction. A catalyst does not affect the equilibrum position rather it enables the system to attain equilibrum faster.

Biochemical catalysts increase the rate of biochemical reactions in the body. They enable the body to carry out certain important functions that are necessary for life.

Answer:

They play huge parts in metabolic reactions and the immune response.

Explanation:

Hope this helped!

Answer:

The blood goes through an oxygenation process that is carried out by the blood vessels, the heart and the lungs, so if any of these structures is affected the entire circulation system will be altered. The circulatory system is made up of two circulatory systems: the pulmonary that provides oxygen to the blood and the systemic that carries it to all the tissues of the body

Explanation:

The veins transport the deoxygenated blood to the heart pumps this blood back to the lungs, where it absorbs more oxygen. This oxygenated blood returns to the left side of the heart, which pumps it to the rest of the body through the arteries. Pulmonary circulation is a process in which the lungs, heart, veins and pulmonary arteries intervene, with the aim of oxygenate the blood.This system begins in the left ventricle of the heart, since this is the chamber through which it exits deoxygenated blood that has already fulfilled its function in all tissues of the body, to later reach the lungs through the blood vessels in the region.Systemic circulation is a long process that involves the chambers of the heart and blood vessels throughout the body, with the aim of carrying oxygenated blood to the tissues that are further away and thus allow all to function in the best way

Answer:

It will move to a warmer spot.

Explanation:

An ectothermic animal, also known as a "cold-blooded" animal, is one that cannot regulate its body temperature, so its body temperature varies depending on the environment.

Many ectotherms live in environments that require little regulation, such as the ocean because the ambient temperature tends to stay the same.

Answer:

Species get endangered by the process of habitat fragmentation.

Explanation:

Answer:

Spikes are provided in the shoes of athletes so as to increase the friction and prevents from falling down.

so option C. is the answer

Answer:

spikes in the shoes of athlete increase friction.

Hope it helps :)

Answer:

Absorption of mineral elements by the root from the soil takes place by active transport. The water film around the soil particles also contains a low concentration of mineral elements. These mineral elements move from soil into the root cells against the concentration gradient.

Answer:Root cells contain proton pumps that actively expel H+ ions stored in the vacuole of root cells

into the surrounding soil.

Explanation:

Answer:

Hope this helps D.

Explanation:

Cells grouped together according to their similarity in shape, size, structure, intercellular materials, and functions are called tissues.

Answer:

Slit Clay

Explanation:

Rice needs a lot of water to grow and clay holds water.