The outermost extraembryonic membrane that contributes to the formation of the placenta is the: MCQ with Answer and Explanation

Explanation:
Approximately 70% of CO2 is transported in the blood as bicarbonate ions (HCO3-). CO2 diffuses into red blood cells, where it reacts with water to form carbonic acid, catalyzed by the enzyme carbonic anhydrase. Carbonic acid then dissociates into H+ and HCO3-, which moves into the plasma. About 20-25% is carried as carbaminohemoglobin.

Explanation:
Streptomycin is produced by Streptomyces griseus, a soil actinobacterium. Penicillium is a mold producing penicillin, Bacillus species produce some antibiotics like bacitracin, Aspergillus produces other substances.

Explanation:
The hypothalamus is a small region in the forebrain that maintains homeostasis by regulating body temperature, hunger, thirst, sleep, and emotions. It also controls pituitary gland secretions. The cerebellum coordinates movement, medulla controls respiration and heart rate, pons relays signals. Hypothalamus acts as the body's thermostat and the link between nervous and endocrine systems.