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For what reasons could a theory be changed or replaced? Check all that apply. New technology is developed that provides more information about the theory. New experimental methods are designed to test
answered
Jul 17, 2019
Biology
high-school
2
votes
146k
views
Médico: ¿___ duele la cabeza también?
answered
Jun 14, 2019
Spanish
middle-school
3
votes
116k
views
A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess board. On the second square the King would place two grains of wheat, on
answered
Dec 7, 2018
Mathematics
college
3
votes
231k
views
Which graph best represents the solution to the system of equations shown below? y = -4x + 19 y = 2x + 1
answered
Nov 12, 2018
Mathematics
high-school
1
vote
36.7k
views
Frederick griffith was one of the leading scientists looking at the genetic role of dna. he was working on two strains of streptococcus pneumoniae: the rough strain (r) did not cause pneumonia, but the
answered
Nov 7, 2018
Biology
high-school
5
votes
78.4k
views
What is the first 10 nonzero multiples of 6
answered
Sep 22, 2018
Mathematics
middle-school
0
votes
174k
views
A vat containing 10,000 gallons of black ink supplies 3 different printing presses. Press 1 uses 12 gallons per minute, press 2 uses 10 gallons per minute and press 3 uses 15 gallons per minute. If the
answered
Sep 5, 2018
Mathematics
high-school
6
votes
219k
views
Ben was studying conjugation in prokaryotes. He learned that prokaryotes attach themselves to each other and exchange genetic information during conjugation. Which organ do prokaryotes use for conjugation?
answered
Jul 16, 2018
Biology
high-school
5
votes
105k
views
Which verb form correctly completes this opinion? Para mí, lo mejor es no ________ tu número de teléfono a las personas en una comunidad virtual. doy dar da dan
answered
Jun 23, 2018
Spanish
high-school
6
votes
180k
views
Which option is the most accurate description of speed? 1. The ball rolled down the hill in five seconds to reach the marker. 2. The ball rolled down the five meter hill in five seconds. 3. It took five
answered
Dec 30, 2017
Chemistry
middle-school
3
votes
55.0k
views
A sum of 17 and a difference 3
answered
Jun 17, 2017
Mathematics
high-school
4
votes
168k
views
What document was created to limit the king’s power in England? the Magna Carta the Estates-General the Parliament the feudal contract
answered
May 12, 2017
History
high-school
4
votes
24.4k
views
Why did living conditions in cities improve by the early 1900s? Most factories were moved to rural areas. many city dwellers moved to the suburbs the automobile replaced the horse drawn wagon building
answered
Feb 23, 2017
History
high-school
6
votes
94.2k
views
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