Apeacock spreading its tail to attract a mate is sending stimulus

Which describes a group of organisms that is considered a species

Why is the sun hot and can burn you if you get to close

Which one of the following is true of trnas? a) trnas are double-stranded. b) each trna binds a particular amino acid. c) there are four types of trna. d) trnas carry special sequences known as codons. e) all of the above