On the ph scale, the highestnumber means the
a. substance is basic.
b. substance is acidic.
c. substance is neutral.

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

Select the correct answer.what is the observable characteristic of a person called? o a. genotypephenotypeoc.alleleo d.gene

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species