Please help! I just wanna know I'm gonna be putting the right thing ómò I'll give brainliest to the correct answer TT^TT Which organ system(s) are involved with inhaling oxygen? Select all that apply.
A. Skeletal system
B. Respiratory system
C. Muscular system
D. Nervous system

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

Nh3 +02-no + h20 is unbalanced what is the balanced equation

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey