Answer:
Left atrium
Explanation:
The four pulmonary veins return oxygenated blood to the left atrium.
Answer: Adrenaline, also known as epinephrine, is a hormone and medication. Adrenaline is normally produced by both the adrenal glands and a small number of neurons in the medulla oblongata, where it acts as a neurotransmitter involved in regulating visceral functions (e.g., respiration).It plays an important role in the fight-or-flight response by increasing blood flow to muscles, output of the heart, pupil dilation response and blood sugar level. It does this by binding to alpha and beta receptors.[
The hydrophilic molecules are those molecules, which tend to get mixed in water, they are water loving. These molecules are generally polar.
The water molecules are polar and tend to dissolve the polar solutes in it. When a polar molecule gets in contact with the water, it is attracted and gets mixed into it. Non polar molecules are hydrophobic and do not get mixed into water.
So, the correct answer is mixed.
