Answer:
According to the image, the approximate QT interval is 0.4 seconds.
Explanation:
The QT interval is the space between the beginning of the QRS complex and the end of the T wave, which represents from the beginning of depolarization to ventricular repolarization.
Considering that the extandardized measurements of an EKG, where the paper circulates at a speed of 25 mm/s, 1 mm horizontal —measuring time— has an equivalence of 0.04 s.
In the image, there is 10 mm between the beginning of the QRS and the end of the T wave, so:
0.04 seconds X 10 mm = 0.4 seconds.
Then, the estimated QT interval is 0.4 seconds.
Answer:
Air pollution will increase due to increased use of fossil fuels and the amount of natural space will decrease as suburban areas increase.
An organism ultimately must obtain all of the necessary energy for life from its environment
Answer:
Ecological importance
Healthy ecosystems depend on plant and animal species as their foundations. When a species becomes endangered, it is a sign that the ecosystem is slowly falling apart. Each species that is lost triggers the loss of other species within its ecosystem
Answer:
14. heterotrophs include both omnivores and carnivores
15. a food chain follows one path of energy and materials between species. A food web is a complex of food chains. a food web is where organisms are placed into different trophic levels.
16. decomposers are heterotrophic, and carnivores are also heterotrophic
17. autotrophs and heterotrophs are both in the food chain.
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