The 18th month he will have to change both,
I hope this helped!
Answer:
Why i dont know
Step-by-step explanation:
Answer:
No, she's wrong

Step-by-step explanation:
So starting from the beginning...

Subtract the 3 from both side and it will look like...

Then add 2x from both sides and it will look like...

Finally divide by 5 to both sides and it will look like...

Answer: Bladder
Step-by-step explanation:
The walls of the bladder contain very few blood vessels and are lined with guanine crystals, which make them impermeable to gases. By adjusting the gas pressurising organ using the gas gland or oval window the fish can obtain neutral buoyancy and ascend and descend to a large range of depths.