improved water habitats for human recreation.
Answer:

✏ Arteries are the vessels that carry blood away from the heart to various organs of the body.Since, the blood emerges from the heart under high pressure, the arteries have thick, elastic walls.
Answer:
cell membrane
Explanation:
The cell membrane allows the cell to stay structurally intact in its water-based environment.
I would chose the 4th one because biome is made up of a bunch of little biospheres
Answer:
Below
Explanation:
I used a punnett square to figure this out!
If you were to cross a heterozygous tall plant (Tt) with a short plant (tt), the possible resulting genotypes of the offspring would be:
50% chance of the offspring being heterozygous dominant (Tt)
50% chance of the offspring being short (tt)
Hope this helps!