3.In Boreal forest, the flora are: (a) Pine Larch (b) Palm Bamboo (c) Oak Fig (d) None of the above.

4. The only artery carrying deoxygenated blood:
(a) Coronary Artery () Pulmonary Artery (c) Aorta (d) Both (b) and (c)

5. The protein molecule present in blood plasma :
(2) Antibodies (b) Antigens (c) Platelets (d) Immunoglobulins.

6. When the heart relates the pressure of the blood is known as:
(a) Systolic pressue (b) Thermal pressure (c) Diastolic Pressure (d) Hypertension.

7 In human the chemical coordination is brought about by
(a) Enzymes (b) Hormones (c) Tissues

pls answer fast I will mark as brainlist