Question

Fill in the blanks
A)aquatic animals excrete wastes in form of _________.
B) transportation in unicellular organisums take place through___________.​

Answer 1

Answer:

Aquatic mammal are ureotelic animals ,they excrete urea.

b) Transportation in unicellular organism take place through diffusion and osmosis process.

-by diffusion process gases are transported and by osmosis other substances are transported

Answer 2

Answer:

1. ammonia

2. diffusion and osmosis

Explanation:

hope it's helpful.