Which characteristics demonstrate that sea anemones are animals and not plants? Select two that apply. A. The cells do not contain a membrane-bound nucleus; that is, they are prokaryotic.

B. The organism depends on other organisms for nutrition; that is, it is heterotrophic

C. The organism does not have cell walls, which are rigid structures that provide support and protection

D. The organism consists of cells that perform chemosynthesis

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.