No. As handsonanatomist mentions it has to do with blood flow to the myocardium(heart muscle itself). The heart muscle itself only receives oxygen during diastole(relaxation), but as heart rate increases the relative length of diastole shortens compared to systole(heart contraction). TLDR; your heart gets tired because it only gets oxygen while relaxed, and the relative amount of time spent relaxing is less.
Mine: is a possessive pronoun. Example :That is mine. My: is a possessive adjective. Example : That is my car. This is my iPodâ --- - This iPod is mine. This is my pen ------ This pen is mine. This is my car ------ This car is mine. Those are my paintings ------ those paintings are mine.
A: The main difference between fungi and plants is one of biological origin: fungi and plants have different DNA sequences and cell structures, and the DNA composition and cell format of fungi are more closely related to those of animals than plants. Fungi and plants share few traits beyond the inability to move. While plants make their own food using photosynthesis, fungi require external sources of nutrients and food particles to survive. Continue Reading