Tallness (t) in snapdragons is dominant to dwarfness (t), while red (r) flower color is dominant to white (r). the heterozygous condition results in pink (rr) flower color.
a dwarf, red snapdragon is crossed with a plant homozygous for tallness and white flowers. what are the genotype and phenotype of the f1 individuals?
a) ttrr—dwarf and pink
b) ttrr—dwarf and white
c) ttrr—tall and red
d) ttrr—tall and pink
e) ttrr—tall and red

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Construct at least two possible hypotheses for the student’s experiment.