What set of characteristics do living organisms such as birds, trees, and bacteria all have that distinguish them from nonliving
things? although viruses share many traits with other living organisms, some people do not consider them to be alive. for this question, you may disregard viruses. place all the characteristics of living organisms in the answer box?
The characteristics of life are -Having cells -Growing -Responding to its enviornment -Having DNA -Consuming and or using energy -Reproducing -Maintaining homiostasis Viruses are not considerd alive because they dind -Have DNA -Have cells -Maintain homiostasis -Consume energy
I am going to assume you meant the "first trophic level" of the ecosystem. The first tropic level of an ecosystem is made up of producers, so the answer is C, Acorns.
