Answer:
6. As the lunar cycle progresses from the full moon to new moon the light will appear to <u>decrease</u>
7. The “growing light” that appears during the first half of the lunar cycle is referred to as <u>waxing.</u>
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8. The <u>third quarter / 7th</u> phase occurs at 21 days into the cycle and shows the left half of the moon illuminated.
9. In a crescent stage <u>less</u> than half of the Moon appears illuminated and during a gibbous stage <u>more</u> than half appears illuminated.
Explanation:
The answers A. C. D. are all physical reactions
The answer is B. Digestion of food
When food is digested it is chemically broken down
Hope this help!
<span>
What do you think that a very wide space between two contour lines means?
</span><span>
B.MOUNTAIN TOP</span>
Answer:
Concentration gradient
Explanation:
Concentration gradient of the ions across the membrane generates the membrane resting potential.
Concentration gradient means that there is unequal distribution of the ions on different sides of membrane. For example, the concentration of K ions is much higher within the cell then out of the cell. Opposite is with the Na ions. When ions move from the area of their higher concentration to the are with the lower concentration, we say they move down the gradient or diffuse (no energy required). On the other hand, movement of ions against their gradient means that this process requires energy and involves protein pumps.
