Question

a. defining life. the science of biology studies life and living things. do you know what is meant by the term \life\? scientists do not agree on a definition of life. they do agree, however, that the cells of living things (organisms) carry on certain processes that are necessary for life. these processes or activities, common to all living things, are known as life functions. an organism is considered to be alive as long as its cells perform certain life functions. nutrition, transport, respiration, excretion, regulation, growth, reproduction, synthesis and metabolism are the life functions or characteristics shared by living things.

review questions

1. the science of biology studies ____ and ____.

1. how do scientists define life?

Explanation:

Question 1

From the text "The science of biology studies life and living things", we can directly get the answers.

According to the text, scientists don't agree on a single definition of life. But they agree an organism is alive if its cells perform life functions (nutrition, transport, respiration, excretion, regulation, growth, reproduction, synthesis, metabolism).

Answer:

life, living things

Question 2