Which of the following is true?
a) the uracil nucleotide consists of the uracil nitrogen base, a deoxyribose sugar, and a phosphate group.
b) when trna attaches to mrna during translation, cytosine pairs with guanine and adenine pairs with thymine.
c) ribosomes contain rna nucleotides and amino acids.
d) only a and b are true e) a, b, and c are true

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms