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Tracheids and vessels together make up A. xylem. B. phloem. C. chloroplasts. D. a plant cell.
answered
Dec 19, 2017
Biology
high-school
5
votes
104k
views
If changes occur in a DNA sequence, which other parameter must change? phenotype ratio mutation rate variation amount allele frequency
answered
Aug 7, 2017
Biology
high-school
6
votes
24.5k
views
Kesha spend a total of $9.60 on a new shoe laces each pair cost $1.20 how many pairs of shoe laces did she buy
answered
Oct 10, 2016
Mathematics
middle-school
2
votes
102k
views
In the step by step simplification of expression below which property is not used? 3(1+x) 3(x+1) 3(x)+3(1) 3x +3 A) associative B) commutative C) distributive D) identity
answered
Jan 31, 2015
Mathematics
high-school
7
votes
127k
views
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