The innermost layer of root cortex is called: Select one:
O a. Epidermis
b. Endodermis
O c. Dermis
O d. vascular tissue

Which best describes meiosis? a. it produces cells that are identical to the original cell b. it is responsible for the replacement of damaged skin cells c. it is responsible for growth of the organism d. it produces male and female sex cells

9. the history of life on earth is recorded in

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons