Question

question 6 plz....fast

Answer 1

The answer for A) is   ... Antagonistic means opposite in nature.. Photosynthesis and respiration are processes which are opposite. In photosynthesis, Glucose is synthesised through the process of reduction and in respiration,  glucose is broken down  through the process of oxidation                                                                                                                                                                                                                                    The answer for B) is ...   Nose or nostril is a part of our respiratory system through which air gets into our lungs.. though we can take in air through mouth it is better to inhale through nose.. its because .. nose has waxy substance called mucus which helps in trapping dust and germs.. it also has fine hairs which filters the air from dust and germs.. hope its helpful..also.. it helps in regulating the temperature of air that we inhale..                                                                                                                           The answer for C) is ...   Haemoglobin is a  red pigment found in RBC (Red Blood Cells). RBC is Biconcave in shape  and thus provides greater surface area for the exchange of gases.. Haemoglobin is an excellent oxygen carrier. It is a protein and has iron content..                                                                                                                                                                                                                    Hope its Helpful!!