According to Lamarck, the characteristics of organisms changed
because of:
A. extinction of competitors
B. a desire or need for that trait
C. special acts of creation
D. genetic mutation
E. chance

What is the similarities and differences between bacteria and eukaryote?

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.