Answer:
Food chain is the correct answer
How do the lungs get rid of all the CO2 they've picked up from the blood?
Answer: The lungs get rid of carbon dioxide picked up from the blood through a process called pulmonary gas exchange. During this process, carbon dioxide diffuses from the blood into the alveoli of the lungs to be expelled from the body during exhalation.
Explanation:
The human body produces carbon dioxide as a waste product of cellular metabolism. Carbon dioxide is transported through the bloodstream from the cells to the lungs, where it is expelled from the body during exhalation. This process is essential to maintain a proper balance of gases in the body and prevent the accumulation of carbon dioxide, which can lead to a dangerous condition called hypercapnia.
The table shows the potential energy and kinetic energy of a skier at two different positions on a hill.
Position and Energy
Position (above ground) Kinetic Energy Potential Energy
100 meters 0 units 50,000 units
60 meters 20,000 units ?
What is the potential energy of the skier at a height of 60 meters above the ground?
30,000 units, because total energy decreases
70,000 units, because total energy decreases
30,000 units, because total energy remains unchanged
70,000 units, because total energy remains unchanged
15,000 units, because total energy is 50,000 units
Mark me brainliest
According to law of conservation of energy, energy remains conserved. It only transforms from one form to another.
The total energy here is the sum of kinetic and potential energy.
At 100 meters, total energy = Kinetic energy + potential energy = 0 units + 50000 units = 50000 units
At 30 meters, total energy = Kinetic energy + potential energy = 35000 units + x units = 50000 units
x units = 15000 units
Thus if the kinetic energy has increased from 0 to 35000 units, the potential energy must decrease from 50000 to 35000 units to keep the energy conserved.wer:
Explanation:
what role do you think the respiratory system has?
Answer:
The main role the respiratory system has is to move fresh air into your body and excrete waste from ur body.
Explanation:
How does friction interact with objects
Answer:
When two surfaces slide over one another the tiny bumps push on each other. Friction causes a force on a surface that is in the opposite direction to its motion. Friction can be reduced by the application of lubricants.
What is Friction's Interaction?Friction is an interaction between two objects in contact that opposes the relative motion of those two objects. It is not something fundamental (like gravity, or electromagnetic force), but it comes up enough that it will be worthwhile to talk about it.
Learn more about Friction here:
https://brainly.com/question/28356847
Answer:
Friction is a force that opposes the motion of objects in contact with each other. When two objects are in contact, the surface irregularities of the two objects interlock and create a resistance to motion, which we call friction.
The amount of friction that occurs between two surfaces depends on several factors, such as the type of materials involved, the force pressing the surfaces together, and the roughness of the surfaces. In general, rougher surfaces create more friction than smoother surfaces.
Friction can either help or hinder motion. For example, in some cases, we use friction to our advantage to create traction between our shoes and the ground to prevent slipping. Similarly, we use friction to slow down moving objects like brakes on a car.
On the other hand, friction can also be a source of energy loss. When two surfaces are in contact and rubbing against each other, some of the energy of the moving object is converted to heat due to the frictional force. This conversion of energy to heat can lead to wear and tear on the surfaces and reduce the efficiency of mechanical systems.
Overall, friction plays a crucial role in our daily lives and in the functioning of many mechanical systems. Understanding the interactions between friction and objects is important for engineering and designing effective machines and structures.
Explanation:
Question 1 (10 point)
Why do areas in western Europe have a warmer climate than other areas at the same latitude?
A. Western Europe is close to the equator.
B. Western Europe is at a high elevation.
C. current called the Gulf Stream brings warm water to the coast.
D. current called the Gulf Stream brings cold water to the coast.
Question 2 (10 point)
Why do locations near the equator generally have a warmer climate?
A. Regions near the equator receive solar energy at a more direct angle.
B. Regions near the equator are surrounded by water.
C. Regions near the equator are highest in elevation.
D. Regions near the equator receive fewer hours of direct solar energy.
Answer: Hi! The correct answer for Question 1 is C, and for 2 is A. Brainliest?
Explanation:
Question 1: The correct answer is C. The Gulf Stream current brings warm water to the western coast of Europe, which helps to moderate the climate and keep temperatures warmer than other areas at the same latitude.
Question 2: The correct answer is A. Regions near the equator receive solar energy at a more direct angle, which results in more intense heating of the surface and warmer temperatures. This is why areas near the equator are generally hotter than areas at higher latitudes.
Answer:
Question 1: C.
Question 2: A.
Explanation:
Question 1:
Warm water is brought in by the Gulf Stream to western Europe, making the air and the climate warmer as well.
Question 2:
At the equator, the Earth is closer to the Sun, and so the energy released from the Sun is focused more on the equator than it is on other parts of the Earth.
The diagram shows a food web in a national park.
A diagram of a food web is shown. Grasses, Aspen Trees, Cottonwood, and Willow are shown at the lowest level, Beaver, rabbit, elk, and mule deer are shown at the second level from the bottom. Topmost level has the coyote and gray wolf. Arrows are drawn from grasses to beaver, grasses to rabbit, grasses to elk, grasses to mule deer, aspen trees to beaver, aspen trees to elk, aspen trees to mule deer, cottonwood to beaver, cottonwood to elk, cottonwood to mule deer, willow to elk, willow to mule deer, beaver to coyote, rabbit to coyote, elk to gray wolf, and mule deer to gray wolf.
What is most likely the effect of unrestricted hunting of gray wolves on the food web of the region?
The vegetation will decrease.
The coyote population will increase.
The beaver and rabbit population will increase.
The elk and mule deer population will decrease.
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
answer:
cornea in the eye
Answer: There are a few parts of the human body that get oxygen directly from the air and not from the blood. One example is the lungs, which are responsible for exchanging oxygen and carbon dioxide between the air and the blood. Another example is the mucous membranes of the nasal cavity, where oxygen can diffuse across the thin epithelial layer and enter the bloodstream directly. Additionally, the skin can absorb small amounts of oxygen directly from the air, although the majority of the oxygen in the body is transported through the bloodstream.
Explanation: