Select the word from the list that best fits the definition

this kingdom is the only kingdom of eukaryotes that contains both autotrophs and heterotrophs and unicellular and multicellular organisms.

1: bacteria

2: classification

3: domain

4: genus

5: protist

6: species

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: