Which period was the “golden age of dinosaurs”?
a. the triassic period
b. the jurassic period
c. the cretaceous period
d. the tyrannosaurus period

In general in which direction does wind blow

In a leaf, dermal tissue a) stores food b) stores carbon dioxide c) releases oxygen into the air d) transports water from the roots

Which of the following is the smallest unit that would contain a complete copy of the entire human genome? a) one human somatic cell b) one human chromosome c) all of the dna of one human d) one human gene