In the phrase “survival of the fittest,” to what does the term “fittest” refer?

a. the best- adapted organisms

b. the fastest organisms

c. the biggest organisms

d. the smartest organisms

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems

How does human environment effect the biosphere