Answer:
The foaming in the elephant toothpaste demonstration means that a gas is produced. Production of a gas is a clue that a chemical reaction has occurred. The water vapor in the genie-in-a-bottle demonstration also shows the production of a gas.
Answer:
provide structure and support for cells. On a larger scale, they also allow the body to move. These proteins bind and carry atoms and small molecules within cells and throughout the body.
Answer:
The cortex is the outermost layer of brain cells.
Explanation:
Your brain contains billions of nerve cells arranged in patterns that coordinate thought, emotion, behavior, movement and sensation.
If you brain is not working you need to destress.
Answer:
C) The rate applies to more individuals each year.
Explanation:
Suppose the initial population was 200 people and birth rate was 10% of that. So thats 0.10 * 200= 20 babies that year.
Next year the population is 200+ 20 = 220 people. Now if the birth rate is still 10% then you will have 0.10 * 220 = 22 babies that year.
Did you see that? The number of babies increased by 22-20= 2 extra babies each year.
Therefore, since rate applies to more individuals each year, you'll get increase in population
Answer:
minerals are dissolved and removed from soil
Explanation:
The zone of leaching is the segment of the soil profile, where nutrients or minerals are dissolved to form soluble minerals, which are later carried by percolating water that penetrates the soil, and moved downwards as the water travels through the soil profile. This zone where minerals are dissolved and removed from the soil, is what we refer to as the zone of leaching.
