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Sidana [21]
4 years ago
11

Could you tell me what is an embryo?

Biology
1 answer:
Lana71 [14]4 years ago
5 0
Well in humans, it's an unborn baby. Or in plants, its just a seed (no flowers) 
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A wildlife biologist is investigating a sudden increase in the death rate
Ann [662]

Answer:

circulatory and respiratory

Explanation:

The body system of Birds possesses a higher arrangement of organs to perform a particular function. The organs form a system which includes the organs and associated structures.

When the biologist observed the shortage of the dissolved oxygen and increase in the level of dissolved carbon dioxide, this could be the result of the failure of the circulatory system which supplies these gases on the body and the associated respiratory system which helps in the exchange of these gases with the atmosphere.

Thus, circulatory and respiratory is the correct answer.

5 0
3 years ago
What is the first thing to attack bacteria.
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Yrctyss chinohjcxtzrhv
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3 years ago
PLEASE HELP EMERGENCY!! IF YOU ARE NOT 100% SURE ABOUT YOUR ANSWER DO NOT ANSWER THEN!! PLEASE!!
marysya [2.9K]

Answer:

Lung disease is any problem in the lungs that prevents the lungs from working properly. There are three main types of lung disease:

Airway diseases -- These diseases affect the tubes (airways) that carry oxygen and other gases into and out of the lungs. They usually cause a narrowing or blockage of the airways. Airway diseases include asthma, COPD and bronchiectasis. People with airway diseases often say they feel as if they're "trying to breathe out through a straw."

Lung tissue diseases -- These diseases affect the structure of the lung tissue. Scarring or inflammation of the tissue makes the lungs unable to expand fully (restrictive lung disease). This makes it hard for the lungs to take in oxygen and release carbon dioxide. People with this type of lung disorder often say they feel as if they are "wearing a too-tight sweater or vest." As a result, they can't breathe deeply. Pulmonary fibrosis and sarcoidosis are examples of lung tissue disease.

Lung circulation diseases -- These diseases affect the blood vessels in the lungs. They are caused by clotting, scarring, or inflammation of the blood vessels. They affect the ability of the lungs to take up oxygen and release carbon dioxide. These diseases may also affect heart function. An example of a lung circulation disease is pulmonary hypertension. People with these conditions often feel very short of breath when they exert themselves.

Explanation:

Put it your own words cause this is kinda advance for 7th

5 0
3 years ago
Read 2 more answers
These are the other 2 answers
Evgen [1.6K]

Answer:

thx man need the cashh...

Explanation:

well im not entirly sure find a web site and delete you history there when you finish.

5 0
3 years ago
How do clouds affect climate? Check all that are true.A( by producing patterns of precipitation B( by reflecting around one-four
LenKa [72]

Answer:

i believe its

✓A

✓D

Explanation:

5 0
3 years ago
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