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matrenka [14]
3 years ago
15

Describe the role of a nebula in the life cycle of a star. Please use your own words​

Biology
1 answer:
raketka [301]3 years ago
6 0

Answer:Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine brightly for many years. The exact lifetime of a star depends very much on its size.

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A man with the autosomal recessive disorder phenylketonuria (PKU) and a woman without PKu heve a son named Peter, who does not h
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Answer:

<h2>2. Peter's maternal grandfather has PKU.</h2>

Explanation:

  • Such type of the genetic disorder in which two copies of a gene must be mutated at a time is called autosomal recessive disorder such as sickle cell anemia, phenylketonuria, and some other diseases.
  • When a sing copy of a gene is mutated in a person then this disorder is not appeared and the person is called a carrier.
  •  So when a child is born by two carrier parents then there is a chance that a child will be affected if both the parents donate mutated genes.
  • In the case of Peter, since peter does not show this defect this means his maternal grandfather was affected by this disorder.

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vazorg [7]
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6. (50 points) EXPLAIN all of the tree trimming steps in order as if you were discussing a job with a
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Step one: Travel approximately 18 inches up the underside of the branch you are removing. Cut up about halfway through the branch.

Step two: Move to the top side of the branch. Choose a location an inch further out from your first cut. Carefully cut down until the branch breaks free.

Step three: Find the branch collar on your trunk. This is stem tissue around the base of the branch. . Make a complete cut with a 45-degree angle kicking out from the base of the tree.

(SOURCE Chris Lambton) Add your vocabulary words in along the way if you decide to use my answer.

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what is the name of the projections that articulates a superior vertebrae with an inferior vertebrae​
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This could be the superior and inferior articulate facets
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Which answer choice best describes a community?
Mrac [35]

Answer:

A

Explanation:

it is more then one character

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