Answers by David Chen
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Answers by David Chen

Answers by David Chen
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Which statement about cells is true? A. Only animals have mitochondria. B.Animals have chloroplasts and plants have mitochondria. C.Only plants have chloroplasts.D.Plants and animals have chloroplasts
answered Mar 24, 2019
3 votes
228k views
Altruism means being completely selfless and yet eanting nothing in return True/ False
answered Mar 10, 2019
6 votes
193k views
To better meet the needs of her ethnically diverse class, mrs. Williams often gives her students opportunities to learn more about one another by conducting group activities. Her activities are infused
answered Jan 12, 2019
5 votes
162k views
Which statement is true about the elements present in a pure substance? A They maintain their chemical properties. B They are composed of many compounds. C They can be separated by physical methods. D
answered Jan 5, 2019
3 votes
234k views
Recalling the FITT Principles, decide which principle is used when you continuing to exercise regularly so that you keep the benefits you have gained from exercise.
answered Jul 15, 2018
7 votes
94.6k views
Why was modern classification invented
answered Apr 15, 2018
3 votes
164k views
(4 - 1)[(1 + 6) + 2]
answered Jan 18, 2018
3 votes
141k views
Reasons why Kush was its own distinct culture include
answered Nov 19, 2017
1 vote
115k views
A copper penny has a mass of 2.6 g Assuming it is pure copper, how much of this mass is contributed by a) the neutrons in the copper nuclei b) the electrons
answered Jun 12, 2017
4 votes
96.1k views
solve the system by substitution x+2y-5z=40, 4y-z=18, 3x-y+z=3 ....step by step this is algebra 2
answered Mar 24, 2017
2 votes
42.9k views
On which idea did Patriots and Loyalist s most agree? Societies should organize governments to oversee citizens. Individual freedom is more important than group security. Britain provided the colonies
answered Feb 8, 2017
2 votes
204k views
a mail truck picks up two boxes of mail from the post office. the total weigth of the boxes is 32 pounds. One box is 8 pounds heavier than the other box. How much does each box weigth?
answered Jun 13, 2016
3 votes
12.6k views
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