A:air
because the flag would on blow if it had some kind of wind
        
                    
             
        
        
        
Answer:
Adenosine triphosphate is the first blank. Phosphate groups is the second one. 
Explanation:
ATP is a chemical compund cells use to store energy. An ATP molecule consists of adenine, the sugar ribose, and three phosphate groups.
 
        
             
        
        
        
Answer:
At the base of Actinopterygii
*This is a unique characteristic of this group.
Explanation:
A peculiar characteristic organ observed in ray-finned fish (as well as in Sarcopterygii, or lobe-finned fish) but not in cartilaginous fish like shark is the swim bladder. 
This organ is often described to be a sac containing gas. It helps these set of fish adjust its buoyancy and its position in the water by regulating the concentration of gas present in it.
 The swim bladder is formed as a pouch coming off the embryonic digestive tract, and in chondrosteans and holosteans, with a set of teleosts e.g. the eels, it maintains an open pathway to the esophagus. In majority of the bony fish, the swim bladder is totally sealed off, as gas levels in their swim bladder are regulated by producing gas into the bladder via a network of capillaries, the rete mirabile (Latin word for "marvelous net"). 
The swim bladder is homologous to the lungs of tetrapods. Since they are formed in the same vein. Few fishes that have an open swim bladder employs it as a breathing organ.
 
        
             
        
        
        
Apocrine sweat glands  are most affected by the hormonal changes that occur during puberty.
What is puberty ?
Between childhood and adulthood, puberty is a time of rapid growth, the emergence of secondary sexual traits, the attainment of fertility, and significant psychological changes. Although the order in which pubertal changes occur is fairly predictable, their exact time varies greatly.
At puberty, sex hormones stimulate the apocrine sweat glands, which then begin to work. In the groin and axilla, they are linked to hair follicles. The thick, protein-rich substance has no smell at first but may acquire one after coming into contact with germs.
To learn more about  pubertal changes click on the link below: 
brainly.com/question/15328076
#SPJ4
 
        
             
        
        
        
1. The action that would control bleeding through the use of pressure points is B. push the main artery against a bone.
2. A. Confusion is a sign of heatstroke.