Which of the following best describes the cycle of matter between humans and the environment? Humans exhale carbon dioxide, which plants use in cellular respiration.
Humans inhale oxygen from plants, which is used in cellular respiration to produce water.
Humans inhale oxygen from plants, which is used in photosynthesis to produce carbon dioxide.
Humans exhale carbon dioxide, which plants use in photosynthesis to produce more carbon dioxide.

it should be briana that has it to me

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question