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Naddika [18.5K]
3 years ago
5

What are the warning signs of COPD?

Biology
1 answer:
JulijaS [17]3 years ago
7 0

Shortness of breath, especially during physical activities

Wheezing

Chest tightness

Having to clear your throat first thing in the morning, due to excess mucus in your lungs

A chronic cough that may produce mucus (sputum) that may be clear, white, yellow or greenish

Blueness of the lips or fingernail beds (cyanosis)

Frequent respiratory infections

Lack of energy

Unintended weight loss (in later stages)

Swelling in ankles, feet or legs

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In at least 200 words explain how DNA replicates
Anuta_ua [19.1K]

Answer: Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin. Several enzymes and proteins then work together to prepare, or prime, the strands for duplication. Finally, a special enzyme called DNA polymerase organizes the assembly of the new DNA strands. The following description of this three-stage process applies generally to all cells, but specific variations within the process may occur depending on organism and cell type.

~i hope this helps :)

5 0
3 years ago
Read 2 more answers
Give a reasons why
meriva
Lactic acid buildup when you’re exercising causes a build up of oxygen. Your body cannot break down glucose in the blood. So, your heart beat increases because there is more oxygen than normal needing to be pumped throughout the body.

In short terms: because your heart needs to pump more oxygen, it is pumping faster causing a faster heart rate.
3 0
3 years ago
Why is it difficult to find the fish named after former president Barack Obama
xz_007 [3.2K]
There are many fish in the world.
but it’s probably not that hard tbh.
6 0
3 years ago
The normal sequence of genes along a hypothetical chromosome is ABC*DEFGH, where letters represent genes and the asterisk (*) re
Hunter-Best [27]

Answer:

The correct option is e

Explanation:

An inversion mutation is a situation in which a sequence of the gene on a chromosome breaks out and rearranges itself from reverse (to the beginning) and then attaches itself back to the point of breakage of the same chromosome.

From the question, mutation changed the gene sequence from ABC*DEFGH to ABC*DGFEH. From this mutation, it can be seen that the gene sequence "EFG" broke-out, rearranged itself from reverse to the beginning as "GFE" and then attached itself back to the points of breakage.

NOTE: This type of inversion is called paracentric inversion since the centromere (represented as * in the question) is not part of the breakage.

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What effect does an existing soil presence have on theseralstages ofsecondary succession and the time it takes toreturn tothe cl
Ahat [919]
Could you be more clear
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3 years ago
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