Why the living world comprises an amazing diversity of living organisms?

The ____________ is the basic unit of life. a. organism b. cell c. tissue d. organ

________ is the study of how organisms interact with one another as well as with their physical and chemical environment.

A scientific approach to explaining some aspect of the natural world includes all of the following except _________. a. a hypothesis b. testing c. faith-based views d. systematic observations

Which of the following is not a feature of a scientific theory? a. It begins as a hypothesis. b. It eventually is accepted as absolute truth. c. It requires critical thinking. d. It is not accepted as a theory until it has been tested repeatedly.

The type of logical thinking that uses related observations to arrive at a general conclusion is called_______. a. deductive reasoning b. the scientific method c. hypothesis-based science d. inductive reasoning

Figure 1.8 Which of the following statements is false? A. Tissues exist within organs which exist within organ systems. B. Communities exist within populations which exist within ecosystems. C. Organelles exist within cells which exist within tissues. D. Communities exist within ecosystems which exist in the biosphere.

Figure 1.16 Which of the following statements is false? Tissues exist within organs which exist within organ systems. Communities exist within populations which exist within ecosystems Organelles exist within cells which exist within tissues. Communities exist within ecosystems which exist in the biosphere.

_________ controls are inherent to an organ, whereas _________ controls are regulatory mechanisms initiated outside an organ that alter the activity of the organ.

Figure 1.6 In the example below, the scientific method is used to solve an everyday problem. Order the scientific method steps (numbered items) with the process of solving the everyday problem (lettered items). Based on the results of the experiment, is the hypothesis correct? If it is incorrect, propose some alternative hypotheses. Observation Question Hypothesis (answer) Prediction Experiment Result There is something wrong with the electrical outlet. If something is wrong with the outlet, my coffeemaker also won’t work when plugged into it. My toaster doesn’t toast my bread. I plug my coffee maker into the outlet. My coffeemaker works. Why doesn't my toaster work?