Biology, 08.12.2019 06:31 Ejuska1128
How many neutrons does element x have if its atomic number is 55 and its mass number is neutrons
Answers: 1
Biology, 22.06.2019 07:30
The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?
Answers: 1
Biology, 22.06.2019 12:30
Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
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Biology, 22.06.2019 13:00
Pulmonary arteries carry highly oxygenated blood. true or false?
Answers: 1
How many neutrons does element x have if its atomic number is 55 and its mass number is neutrons...
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