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In 1838 botanist Matthias Schleiden determined that all plants are composed of cells. In 1839 anatomist Theodor Schwann proposed that all animals are composed of cells. In 1855 biologists Rudolph Virchow
answered
Jan 12, 2021
Physics
high-school
0
votes
165k
views
A current filament carrying 15A in the ax direction lies along the entire x- axis. find H in rectangular system at point(2,1,0)
answered
Aug 31, 2020
Physics
college
1
vote
161k
views
When a leukemia is suspected in a patient, what laboratory test should be required for the initial diagnosis? A) CBC, differential, platelet count B) Cytochemical stains C) Immunologic surface markers
answered
Jun 18, 2020
Biology
college
1
vote
7.6k
views
Can someone please help me with #3?
answered
May 15, 2020
Mathematics
middle-school
3
votes
52.8k
views
A group of analytical chemists are examining a compound. They find that it's composed of 34.4% iron and 65.6% chlorine by mass. Which compound could it be? Use the periodic table to help you find the necessary
answered
May 6, 2020
Chemistry
middle-school
3
votes
9.6k
views
Which two of the prime numbers below are factors of 247. a.11 b.13 c.17 d.19
answered
Mar 2, 2019
Mathematics
high-school
2
votes
113k
views
How could you find the number of different combinations of 6 letters in a computer password?
answered
Feb 6, 2019
Mathematics
high-school
3
votes
62.1k
views
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