Scientists often classify organisms based on their ability to perform certain processes. Which of the following shows an example of organisms being classified based on their physiological abilities?
A.
Plant cells have cell walls.
Animal cells do not have cell walls.
B.
Protists can be unicellular or multicellular.
Bacteria are unicellular.
C.
Animals and plants have membrane-bound nuclei.
Bacteria do not have nuclei.
D.
Plants can make their own food using energy from the Sun.
Animals cannot make their own food.
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Which of the following is an example of a tissue on the digestive system a.the stomach b.smooth muscle that lines the stomach c.nerve cells in the stomach d. enzyme molecules in the stomach

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.