Which supercontinent is thought to have formed about 1 billion years ago and to have included most of earth's land masses?

a. gondwana

b. laurasia

c. pangaea

d. rodinia

Shown below is the start of a coding region within the fist exon of a gene. 5'--3' 3'--5' how many cas9 pam sequences are present?

The managing director of a company sends a christmas greeting to all his employees through the company email. which type of network does he use? he uses an .

(328 inc. 448 ind. 480 in25. john has a collection of toy cars. he has 2 red cars, 4 blue cars, 4 black cars, and 6 yellowcars. what is the ratio of red cars to yellow cars? a. 1: 2b. 1: 3c. 1: 626. the net of a right triangular prism is shown below.