The branch of 8 concerned with the behavior of animals is
a. zoology.
b. botany.
c. virology.
d. taxonomy.

Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled