Which of the following environmental conditions is most likely to be a stressor for plants? A. Extreme temperature
B. Too much oxygen
C. Low salinity
D. Too much carbon dioxide

answer; a muscle cell, another neuron and a of the above

b. the carbon cycle ensures living things have a source of hydrogen

answer: i don't know

explanation:

you need to provide a picture, otherwise i can't tell you.

if you can provide one, i'd be more than happy to you with this!

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation: