1. Variations
2. Extinction
3. Behavioral
4. Functional
5. Structural
Answer:
Because most cells, including erythrocytes, are exposed to glucose concentrations outside the cell that are greater than those within, facilitated diffusion leads in net glucose inward movement.
<span>Certainly. Every organism has a variety of different characteristics. One person writing a key might choose to use different characteristics than another person would use.
For example: Here's a key for separating fish, snake, frog and mouse
1.
A. Has scales on its skin ... 2
B. Has no scales on its skin ... 3
2.
A. Breathes with gills - fish
B. Breathes with lungs - snake
3.
A. Has hair or fur - mouse
B. Has no hair or fur - frog
Here's a different key for the same four animals:
1.
A. Has four legs ... 2
B. Does not have 4 legs ... 3
2.
A. is warm-blooded - mouse
B. is cold-blooded - frog
3.
A. has fins - fish
B. has no fins - snake</span>
This can be known as trade in some places and kingdoms. But historically, the spread of ideas and culture is know as Trans-cultural diffusion.
Hope this helps :)
Answer:
In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.
Explanation:
Hope this helped you! :D
