Option C 100mv because the membrane goes from -70 mV to +30 mV. Thus, during the action potential, the inside of the cell becomes more positive than the outside of the cell.
Answer:
The carbon cycle, as the nitrogen cycle, occurs in all the spheres: Biosphere, Atmosphere, Geosphere and Hydrosphere.
Explanation:
Most Earth events involve interaction between multiple spheres. For example, rain is the movement of water (the hydrosphere) from the atmosphere to the lithosphere where it collects in lakes, rivers, or streams. Water is an important resource for inhabitants of the biosphere.
The Atmosphere-contains all the air in Earth's system. The upper portion of the atmosphere protects the organisms of the biosphere from the sun's ultraviolet radiation. It also absorbs and emits heat. This sphere is also where weather occurs.
The nitrogen cycle occurs in all the spheres and ecosystems. It passes through rocks, water, atmosphere, plants, etc.
In atmosphere and biosphere: Nitrogen is about 78% of the gases in the atmosphere an it’s a essential component of the living organisms. It enters plants through the microorganisms that convert this nitrogen into ammonia. After this conversion, the plants absorb this substance. It can pass to animals when they eat these plants. Then, when they urinate, bacteria convert ammonia to nitrogen again and it returns to the atmosphere.
Sources:
https://earthsphereslife.wordpress.com/2020/03/31/nitrogen-cycle/https://earthsphereslife.wordpress.com/2020/04/01/carbon-cycle-in-all-the-spheres/
C. the cell membrane.
the membrane let's things in and out of the cell.
Answer:
Explain how natural resources are identified:
Satellites are machines that are launched into space. They move around the Earth to get information that can help identify natural resources. How do satellites do this? Satellites scan the Earth’s surface to get information about its color and brightness. This information is used by a computer to make a “computer map”. Once they finish the "computer map" a person would look at the map and determine which materials are which. These maps are not for showing a person how to get from one place to another, but for showing what the surface of Earth looks like and what it is made of.
Why are natural resources unevenly distributed:
The formation of these resources requires certain conditions. For example, copper ores are formed where there is volcanic activity. Iron ores were formed a long time ago when certain substances combined to form sedimentary and other types of rocks. So, iron ores could be found more often in places with environments that were just right for the formation of these rocks. Graphite forms when another type of rock, called metamorphic rock, is formed.
Explanation:
This is what I put and I got all the information from the text on edge 2021.
