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Alexxandr [17]
3 years ago
11

Increased energy efficiency ultimately leads to lower costs.

Biology
2 answers:
Bingel [31]3 years ago
8 0

Answer:

T

Explanation:

bazaltina [42]3 years ago
7 0

Answer:

true

Explanation:

its on edge

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In an experiment designed to test the effect of temperature on goldfish respiration, the temperatures that were changed represen
DENIUS [597]

Answer:

C. experimental

Explanation:

Experimental variables are the variables that are changed during the experiments to observe the effects of these changes. An experiment usually has one or more experimental variables. An experimental variable that is changed to know its impact on some other variable is called the independent variable.

In the given experiment, goldfishes were exposed to various temperature conditions to observe the effect of temperature on respiration. Therefore, both temperature and respiration rate are the experimental variables here.

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A protist has a nucleus inside of it to make it a Eukaryote, if it had no nucleus it would be consider a Prokaryote
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True or False? Toxins accumulate in the tissue of organisms
vodomira [7]

false I think or it's true

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i don't think this is helpful srry

5 0
3 years ago
Sequence the skeletal and muscular changes that take place when a person inhales
o-na [289]
During inhalation, you breathe in and this contracts the diaphragm and moves downwards. This increments the chest cavity space which means the lungs are expanding. The intercostal muscles or the muscles in between the ribs also aids in the enlargement of the chest cavity. Both muscles contract to pull your rib cage upward and outward when you inhale. As your lungs expand, air is sucked through your nose and mouth. It then travels down to the windpipe and into the lungs to the bronchus, bronchioles and eventually in the alveoli where air exchange between carbon dioxide and oxygen happens.

The additional accessory muscles of respiration are typically used only under conditions that are of high metabolic demand or respiratory dysfunction. However, in instances where these muscles become stiff and hard, expansion of the rib cage can be quite restricted. The accessory muscles of respiration include sternocleidomastoid and the scalene muscles namely anterior, middle and posterior scalene. Both aid in elevating the rib cage. However, their involvement seems to depend on the degree of respiratory effort. During quiet breathing, the scalenes are consistently active at certain phases while the sternocleidomastoid is quite.



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