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andrew11 [14]
2 years ago
8

What is the first step in the creation of a theory

Biology
1 answer:
Novay_Z [31]2 years ago
8 0
A)a scientist comes up with an explanation
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Why does water of salt gets salty?​
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Salt in the ocean comes from rocks on land. The rain that falls on the land contains some dissolved carbon dioxide from the surrounding air. This causes the rainwater to be slightly acidic due to carbonic acid (which forms from carbon dioxide and water).

7 0
3 years ago
The body determines whether certain genes should be expressed or not. Sometimes genes are only turned on once or twice in a life
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The gene which is produced once or twice in a lifetime is the milk producing hormone after childbirth. This is because it is produced only after the birth of the child. The growth of the mammary glands takes place during pregnancy. The breast continue to increase in size after giving birth to a child. After delivery only copious milk is produced which is generally done with the help of milk hormone. During pregnancy the secretion of the milk is inhibited by the estrogen and progesterone which circulates in the blood stream which in turn inhibits the release of prolactin from the pituitary gland thus making the mammary glands unresponsive. Where as insulin is a hormone which helps the body to utilise the sugar or glucose from different sources like carbohydrates that we get while we eat food and adrenaline is secreted when we are scared or when we feel that we are in danger. Therefore, milk producing hormone is the gene that are turned once or twice in a lifetime.

8 0
2 years ago
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How do you think the idea of sustainability influences the work of foresters?
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It’s funny because the concept of sustainability is thought to come from field of forestry. Around the year 1700, Carl von Carlowitz described the concept of sustainable forestry.
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2 years ago
DNA is a _ acid that includes a series of _ that makes up a genetic _
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How does captive breeding help to protect single species?
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Its used to protect genetic diversity and help reintroduce into the wild.

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