<span>Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration—in the direction against some gradient or other obstructing factor (often a concentration gradient).</span>
Answer:
Being careful when making decisions
Explanation:
i took the test trust me
Answer:
A mutation that cause changes to short stretches of nucleotides. These mutations affect the specific genes that provide instructions for various functional molecules, including protein . changes in these molecules can have impact on any number of an organism's physical characteristics
Answer:
B. Polio
Explanation:
The poliovirus causes brain damage (resulting in paralysis) and muscle degeneration. You're welcome.
