Variations in alleles result from the different ways genetic material changes. A tropical storm occurred that blew birds onto a new island and the birds settled
there and bred. What is this type of genetic variation? *
A. mutation
B. gene flow
C. genetic drift
D. DNA copying

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )

it is the most commonly accepted one