please answer as many questions you can, but please answer, as tomorrow I have my biology exam
but do not write any useless thing
Answers
a) I) Water is transported faster during daytime because rate of transpiration is higher during daytime. Transpiration takes place through stomata. Stomata remain open during daytime for gaseous exchanges for photosynthesis and respiration. So transpiration rate is higher.
iii) .Auricles have thinner walls in comparison to ventricles because the major function of auricles is to receive blood and pump it to the respective ventricles. While the major function of ventricles is pump the blood out of the heart i.e. to lungs and to the body parts which requires a great force.
iv).people with type O- blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group. ... Plasma transfusions are matched to avoid A and B antibodies in the transfused plasma that will attack the recipient's red blood cells.
V) they are useful in releasing nutrients from dead decaying organisms back into the environment. these nutrients are used by plants. thus decomposers help in recycling of nutrients. decomposers are also called nature's scavengers.
b) reffer to the attachment
C) i)Heart palpitations can have causes that aren't due to underlying disease. Examples include skipped heartbeats, variation with breathing, exercise, stress, smoking, use of marijuana, alcohol or some medications.
ii) cardiac attack cause most cardiac arrest occur when Diaseased electrial system maltifuntions.this malfunction cause an abnormal heart rhythm such as ventricular tachycardia or ventricular fibrillation.some cardiac arrests are also caused by extreme slowing of the heart rhythm.
Answer:
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