Which of the following describes a response of external stimuli
1 a rabbit runs away from a fox that is chasing it
2 a woman drinks water when she's is thirsy
3 a boy eats food when he is hungry
4 a person yonns with oxygen levels in blood are low

Using the periodic table, determine which material is most likely a good conductor

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.

Which type of respiration takes place when there is no oxygen present