Answer:
B. The DNA replicates.
Explanation:
Activity in the chromosomes must occur before the beginning of mitosis. The cells will enter the S1 phase in preparation to divide.
Answer:
Cyanide may cause muscle weakness because tissues are not able to use oxygen for cellular respiration
Explanation:
Cyanide is a highly toxic compound that inhibits cellular respiration by inactivating cytochrome oxidase in mitochondria, which is a key enzyme responsible for oxidative metabolism and energy production. Thus, cyanide consumption decreases the utilization of oxygen by muscle cells, thereby causing weakness. The symptoms of cyanide poisoning include, among others, weakness, malaise, visual disturbances, muscle pains, etc.
Answer:
a b c d e f g h i dont know and im very sory
Explanation:
44) C) <span>mitosis
45) C) </span><span>mitochondria
46) C) Dominant
Hope this helps!</span>
Answer:
C. 30 min minutes a day 5 days a week of moderate-intensity exercise or 20 minutes a day 3 days a week of vigorously intense exercise
Explanation:
The combination of aerobic and muscle-strengthening physical activity is crucial for a healthy lifestyle. Regular physical activity can help to reduce the risk of cardiovascular and chronic diseases, disability and premature mortality.
Adults need a moderate physical aerobic activity for a minimum of 30 minutes 5 days a week or 20 minutes of vigorous-intensity aerobic activity. A combination of these two can be done to achieve this goal.
A moderate-intensity physical activity, like <u>fast walking</u>, should produce a noticeable rise in heart rate and breathing. On the other hand, a vigorous-intensity activity, like <u>running</u>, should produce a large and bigger change in heart rate and breathing.
The muscle-strengthening activity, should be performed for a minimum of 2 days a week on two or more nonconsecutive days.
