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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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Gomez found the masses of three rocks for science project .the first rock had a mess of 19.28 grams, the second rock had a mass
ziro4ka [17]
The combined mass of rock 1 and 2 = 19.28 + 25.3
= 44.58

Difference between rock 3 and combined rocks 
= 46.3 - 44.58
= 1.72 grams

therefore, the third rock was 1.72 grams greater than the combined mass of the other two rocks. 
3 0
3 years ago
Carbon atoms have four electrons in their outer shell. This means that a single carbon atom can form up to _______ bonds with ot
Levart [38]

Answer:

four

Explanation:

Carbon atoms have four electrons in their outer shell. So, it exhibits tetravalency & thus, a single carbon atom can form a maximum of four (4) bonds with other atoms

4 0
3 years ago
Scientists often want to know if the genetically transformed organism can pass its new traits on to its offspring and future gen
Orlov [11]

Answer:

Quickly

Explanation:

The more quickly that a new generation of organisms develops and reproduces the faster that you will be able to observe whether the new traits  have been passed on to the new generation or not, and so on if you want to see this effect over several generations. For example, if you have genetically modified corn, you just have to wait one year to see if next year's generation of corn will have the modified trait or not. Conversely, if you geneticall modify an apple, you have to wait several years until the new generation of apples mature and are able to flower and produce the next generation of apple embryos.

7 0
3 years ago
Which human body systems are involved in thermoregulation
ValentinkaMS [17]

Answer: The nervous system of human body is responsible for thermoregulation.

Explanation:

Thermoregulation is the process whereby an organism maintain its internal temperature despite changes in External temperature. The nervous system of human body is responsible for thermo regulation. The nervous system consist of nerves cells and fibres which send nerves impulses to the body parts. It comprises of central nervous system and peripheral nervous system. The centsl nervous system consist of brain and spinal cord while the peripheral nervous system consist of nerves. A part of the brain (central nervous system)called hypothalamus controls thermo regulation. When it senses a change in internal temperature of the body, its send signals to the organs, muscles, glands and nervous system , they respond differently so as to restore the body temperature to its normal one.

8 0
3 years ago
A certain species of seed-eating bird lives on a remote island. Many young have recently been born with shorter beaks that can c
fredd [130]

Answer:

C)

Explanation:

The beaks are in direct correlation with the type of or amount of food they are consuming.

4 0
3 years ago
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