Translate the following argument into symbolic form and then determine whether it is valid or invalid by constructing a truth table. 1. if chromosome mapping is successful, then the human genetic code will be deciphered. 2. the human genetic code will not be deciphered and chromosome mapping will be successful. 3. therefore, new treatments will be developed for hereditary diseases.

There are six elements that make up most of the human body. which of the following is not one of these six elements?

How does the fossil record provide evidence that the modern whale evolved from the anthracotheres? a) the modern whale looks like their ancestor the anthracotheres. b) the modern whale has all of the same structures as their ancestor. c) there is not enough evidence to suggest the the modern whale evolved from the anthracotheres. d) the anthracotheres has a structure that is still present in the modern whale, but is no longer of use to the modern whale.

Put each tile to the correct location. categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. 1) scientific theories 2) both 3) scientific hypothesis a). a tentative statement used to guide scientific investigations b). makes predictions about future events c). can be tested many independent researches d). based on observations of natural phenomena e) . a well-established highly reliable explanation