Biologists think early eukaryotic cells might have had a nucleus that first formed
O A. due to the folding of a flexible outer cell membrane
B. due to the production of an internal cytoskeleton
C. when the cells engulfed smaller prokaryotic cells
D. when a mutation made a membrane form around DNA

What is the importantence of the carbon and nitretan cycles in the environment

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

Which event would lead to primary succession of a forest?