Chlamydomonas is a genus of single-celled photosynthetic algae. Which of the following is NOT a way that chlamydomonas maintains homeostasis? A. The reproductive system of chlamydomonas contains specialized cells that enable the organism to reproduce both sexually and asexually.

B. Chlamydomonas contains a chloroplast and produces its own food via photosynthesis.

C. Waste products leave chlamydomonas through diffusion.

D. Chlamydomonas is able to grow by absorbing minerals and through photosynthesis.

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The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .