Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion
Explanation:
Transport proteins generally perform two types of transport: “facilitated diffusion,” where a transport protein simply creates an opening for a substance to diffuse down its concentration gradient; and “active transport,” where the cell expends energy in order to move a substance against its concentration gradient
Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.
Answer:B, these efforts will decrease the amount of heat that the atmosphere traps
Explanation:
One of the factor that make women more susceptible than men to urinary tract infection is because male have longer urethra while female have shorter urethra.this make infectious agent to reach the bladder more easily through the short female urethra than through the longer male urethra.women are affected 50-60 times as often to men
Answer:
i'd recommend rereading it
Explanation:
