Which of the following is true about genes? a. genes are made up of smaller molecules known as chromosomes. b. the genes of a particular organism can never change throughout its lifetime. c. in humans, genes are passed to an offspring from two parents. d. genes are responsible for all the traits of an organism.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.