1. when the is mature, the sporangium opens
a. xylem
b. pollen
c. phloem
d. none of the above
2. the androecium is all of the parts of the flower
a. sterile
b. female
c. male
d. none of the above

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

archaebacteria are found in in forest soil.

hope i spelled it right lol

hope i

-lavira: )

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )

synapse nervous system