The smallest of the single-celled organisms that assist with decomposition in the soil are most likely to have which of the following characteristics? (2 points)
O A different form of DNA containing uracil instead of thymine
O Chitin or cellulose in their cell walls
• Branching, ether-linked hydrocarbons in their cell membranes
• A special form of RNA polymerase unique to their domain

How water is moving through the ecosystem ?

Read the scenario below and answer the question that follows. hallie is reading a novel in the library when susan, her best friend, slumps down in a chair next to her. susan doesn't say anything, but hallie knows that susan is upset because she is slumping in her seat and rolling her eyes. a psychologist would explain that hallie is interpreting her friend's emotion based on a. the behavioral component of emotion b. her friend's ability to regulate emotion c. the verbal component of emotion d. the physiological component of emotion select the best answer from the choices provided a b c d

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing