Which of the following is a wind-blown large pile of sand? a) erg b) desert c) erosion d) desert varnish

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

During binary fission, what events must occur before the cell splits into two new cells?

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.