A few years later, Dutch businessman Anton van Leeuwenhoek was the first to see living cells through his microscopes. Around 1674, he looked at drops of lake water, scrapings from teeth, and water from rain gutters. Leeuwenhoek was surprised to find a variety of one-celled organisms. He noted that many of them whirled, hopped, or shot through the water.

What do you think the one-celled organisms that van Leeuwenhoek found in lake water were?

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !

How do bacteria protect their genetic material and cytoplasm during harsh conditions