[Answered] The most important chemical regulator of respiration is A) oxygen. B) carbon dioxide. C) ...

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faduma

Hero Member
Posts: 528

on: Feb 28, 2019

The most important chemical regulator of respiration is
A) oxygen.
B) carbon dioxide.
C) bicarbonate ion.
D) sodium ion.
E) hemoglobin.

Question 2

Light refraction takes place at the
A) cornea and lens.
B) lens only.
C) optic disc.
D) cornea and optic disc.
E) cornea only.

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Eunice618

Sr. Member
Posts: 350

Reply #1 on: Feb 28, 2019

Answer to Question 1

B

Answer to Question 2

A

faduma

Member
Posts: 528

Reply 2 on: Feb 28, 2019

Wow, this really help

elyse44

Member
Posts: 319

Reply 3 on: Yesterday

Gracias!

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