"Hormones".
"nutrients" such as "water", glucose , amino "acids", "minerals" and "vitamins".
Water substances, such as "carbon dioxide" and urea.
I hope this helps.
I listed 7 hope that's ok there in "parentheses".
I believe the answer is C) reproductive isolation.
Hope this helps!
Their biggest threats
The absence of an appropriate habitat for bees could lead to a continuous decline in pollination. Mono-cropping, pesticides, and higher temperatures associated with climate change all pose problems for bee populations and, by extension, the quality of food we grow.
