Questions by Di

Questions by Di

The age when many animals, diseases, humans, and plants were exchanged between the New and Old Worlds was called the Exchange.

asked Apr 21, 2020

2 answers

2 votes

187k views

If one feather weighs 700 milligrams, how much will 37 identical feathers weigh plus the basket they are placed in which weighs 49 grams? in grams and milligrams

asked Mar 17, 2020

1 answer

2 votes

73.1k views

Sergei Winogradsky Choose one: A. discovered microbial fermentation. B. developed a pure culturing system using agar. C. identified microbes using biotechnology. D. discovered chemolithotrophs in natural

asked Jan 19, 2020

2 answers

1 vote

231k views

What substance is oxidized during cellular respiration? A. glucose B. carbon dioxide C. oxygen D. water The answer is: glucose btw

asked Sep 18, 2019

1 answer

1 vote

24.6k views

True or False: The identity of a pure substance will change when it is melted or frozen.

asked Mar 10, 2019

1 answer

4 votes

105k views

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