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For gas exchange to be efficient, the respiratory membrane must be ________. a.at least 3 micrometers thick b.0.5 to 1 micrometer thick c.between 5 and 6 micrometers thick d.the thickness of the respiratory
answered
Aug 10, 2019
Biology
college
4
votes
131k
views
The following is an example of which of the causes of technological progress? government research grants A. education B. innovation C. scientific research D. scale of the market
answered
Jul 24, 2019
Business
middle-school
4
votes
172k
views
Give 3 examples of ways in which biology can help inform everyday decision.
answered
Nov 24, 2018
Biology
high-school
4
votes
69.9k
views
The next three terms in the pattern 1, 10, 19, 28, 37 are
answered
Sep 20, 2018
Mathematics
middle-school
4
votes
183k
views
Which of the following natural resources helps India fuel its nuclear power plants? uranium coal timber natural gas
answered
Aug 21, 2018
Geography
high-school
3
votes
50.2k
views
The outbreak of the mexican-american war was caused by the dispute over oregon. a. True b. False
answered
Jul 23, 2018
History
high-school
7
votes
199k
views
The time it takes to move in response to a stimulus is called __________.
answered
Mar 26, 2018
Health
high-school
2
votes
147k
views
The fastest way to get help is to type a word or two in the search box.
answered
Oct 11, 2017
Computers & Tech
high-school
2
votes
30.6k
views
Which is 8.43 written in expanded form
answered
Jan 27, 2016
Mathematics
middle-school
4
votes
36.6k
views
Why is India considered a subcontinent
answered
Apr 11, 2015
Social Studies
middle-school
3
votes
80.2k
views
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