How can two parents without hitchhiker's thumb have a child who does have hitchhiker's thumb

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because

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.