gametangium is the problem
 
        
             
        
        
        
The decay of Francium produces radium-223 (Ra-223) through a beta decay or into astatine-219 through an alpha decay. The atomic number of Francium is 87, and that of Astatine is 85.
<h3>What is beta decay?</h3>
Beta decay is a type of radioactive decay in which a beta ray is emitted from the nucleus of an atom. During the beta decay, a proton in the nucleus is transformed into a neutron and vice versa which results into change in the number of proton in the nucleus. If a proton is converted to a neutron, then it is said to be β+ decay. And, if a neutron is converted to a proton, then it is said to be β– decay.
In this reaction, an atom of Francium (Fr-223) is undergoing a beta decay to produce radium (Ra-88) by the conversion of a neutron into a proton. 
Learn more about decay here:
brainly.com/question/13853996
#SPJ1
 
        
             
        
        
        
Answer:
A. Most plats in the ditch will be plants with long roots.  
Explanation:
Because the plants with shallower roots systems are easily uprooted by the rain, and there is lots of rain that year, natural selection will choose the long rooted plats. They are the "strongest" in evolution's eyes because they are less likely to die by being uprooted.
 
        
             
        
        
        
The answer is spin.
Each quantum number that describes the two electrons in a helium atom is identical, except for the one that indicates their spin.