Which of the following best describes the role of roots and stems in a plant? Roots and stems transport water and minerals to the leaves so that photosynthesis
can occur.

Roots and stems help the plant move and keep cool in hot weather.

Roots and stems transport water and minerals to the flower to attract bees so that
pollination can occur.

Roots and stems are where photosynthesis takes place

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Which label correctly identifies what x represents in the concept map?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population. b) the separated population is small, and genetic drift occurs. c) the isolated population is exposed to different selection pressures than the ancestral population. d) different mutations begin to distinguish the gene pools of the separated populations. e) gene flow between the two populations is extensive.