The two tubes found in vascular plants are the ? a. stamen and pistil
b. xylem and phloem
C. stem and leaves
d. pollen and ovule

this is math not biology xd

age range would be the answer

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: