In the Northern Hemisphere, the summer solstice occurs on .
A. June 20 or 21
B. March 2...
Biology, 21.01.2021 21:10 dayanara72
In the Northern Hemisphere, the summer solstice occurs on .
A. June 20 or 21
B. March 20 or 21
Answers: 3
Biology, 22.06.2019 06:40
The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3
Answers: 3
Biology, 22.06.2019 11:30
According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes
Answers: 3
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Which material is commonly used as a culture medium for living cells
Answers: 2
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What is the next step in muscle contraction after the actin changes shape
Answers: 2
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