I believe the first one is true and the second one is false. I am not completely sure but I just took a test with those questions and got an A-
Explanation:
Astrolabes were amazing technological devices that allowed people to calculate not only the time of day (or night), and their precise location on Earth, but also to measure the positions of celestial objects like stars, determine the time of year, and determine what part of the sky would be visible at any given time.
Answer:
A biologist marked a cell that he knew was about to undergo meiosis. A short time later he observed the four cells produced by the original marked cell; their chromosome numbers were 17, 17, 18, and 16. He knew these numbers indicated that something
U just search up on yt and it will ahow you hope this helped:)