A sporophyte is what it will develop into :)
Answer:
4875/12927.
Explanation:
The cardiac output may be defined as the product of the heart rate and the stroke volume.
Cardiac output= stroke volume ×heart rate
The cardiac output at rest can be calculated as follows:
The stroke volume at rest is 75 and the heart rate is 65.
Cardiac output = 75×65
Cardiac output = 4875
.
The cardiac output after exercise can be calculated as follows:
The stroke volume has been increased by 24%.
Final stroke volume = 75 × 24/100 + 75
Final stroke volume = 93.
Heart rate = 139.
Cardiac output = 139×93
Cardiac output = 12927
.
Thus, the answer is 4875/12927.
Answer:
Option (A).
Explanation:
Muscle contraction may be defined as the physiological process of the activation of tension generating sites that occur within the muscle fibers. Actin, myosin, troponin and other proteins are important for muscle contraction.
The calcium ion is important for the muscle contraction. The binding of calcium with troponin causes the movement of tropomyosin out of the grooves between the actin molecules during muscle contraction.
Thus, the correct answer is option (A).
Answer: Possession of traits that aid their survival in extreme conditions.
Explanation: Because archaea that grow in extreme environments possess certain characteristics that aid in their survival in the extreme weather conditions. Those traits are studied regularly to improve other plants.
