Almost all living organisms use the same basic biochemical molecules. these similarities cannot be explained by descent from a common ancestor.
a. true
b. false

Dr. bob hypothesizes that drug x causes cuts to heal more quickly. he performs a medical experiment on a group of 100 people and confirms his original hypothesis. in the control group, a 1 cm cut took seven days to heal. in the experimental group, a 1 cm cut took four days to heal. what should dr. bob do next? a) repeat the experiment for accuracy. b) begin selling drug x to the public. c) write a scientific theory about drug x. d) publish the results of the experiment in a scientific journal.

The instructions for making proteins come originally from

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates