What kind of change occurs when ice becomes liquid water?
o melting reaction
o chemical change
o physical change
and
sses of
o substance change
ergy, and
sses of
cules

2points what is the term for a female reproductive cell? a. egg b. chromatid c. allele d. fertilization

What is the number of phosphates in an atp molecule

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?