Answer:
1. Time practicing
Explanation:
Independent variable is the variable with only 1 change. You are only changing the time for practice.
Answer:
im pretty sure its the answer you have!
Explanation:
B.
Viruses are classified as biological agents instead of a living things, $& they are only made of genetic material.
Answer:
it is because the blood cells will have too much water in them and they will burst.
Explanation:
there will be less salt inside the cells so all the water will enter the cells. if there is also salt present outside of the cell then the water and the electrolites(salt) will equalize between the inside and the outside of the cell.
A selectively permeable membrane allows materials (some substances or molecules) needed for survival in and out. (Like a filter)