Guanine does not pair with Thymine. In a DNA strand, adenine (A) pairs with thymine (T), while guanine (G) pairs with cytosine (C). Therefore, that must mean there was a problem or a mistake with the duplication of the strand.
Answer:
anther: produces pollen
ovule: contains egg cells
sepal: protects the flower bud
petal: surrounds the reproductive structures
Explanation:
Answer:
The following are examples of scientific questions
How fast do cheetahs run?
Does adding fertilizer to the soil help plants grow faster?
What do pelicans eat?
Why are my neighbors going to the mall?
Explanation:
An essential part of science is asking questions.
A good scientific question is that it can be answered by direct observations or with scientific tools.
How fast do cheetahs run?
Does adding fertilizer to the soil help plants grow faster?
What do pelicans eat?
Why are my neighbors going to the mall?
Examples of questions that are not scientific are based on values or opinions like what people believe is right or wrong, or beautiful or ugly.
Do fish like living in aquariums?
Does my dog like her bone better than her Frisbee?
Answer:
They emit steam and volcanic gases, such as sulfur dioxide and carbon dioxide. Fumaroles create pathways for rising heat, volcanic gas, and magma. Openings stemming down into the pool of magma. Cracks and fumaroles act like a window so scientists can get a glimpse of the gases inside volcanoes.
Explanation:
Based on my observations, the earth rotates from west to east about the axis of rotation. The counter-clockwise rotation of the earth is as viewed from the North Pole star Polaris.
My observations supporting the counter-clockwise rotation of the earth are:
- The Sun rises in the east and sets in the west.
- All celestial objects including the stars and the moon rise in the east and set in the west.
The rotation is the result of the strong geomagnetic field of the earth. It is also responsible for the formation of day and night on the planet.
Learn more about the Rotation of the earth:
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