50% will be heterozygous. 50% will be homozygous. 75% will have the same phenotype as their parents.
Have a primitive digestive system
Answer:

Explanation:
In an atom, there is a dense center known as the nucleus. It is made up of two subatomic particles: <u>protons</u> and <u>neutrons</u>. The protons have a positive charge and the neutrons have no charge, so overall the nucleus is positively charged.
The third subatomic particles, negatively charged electrons, are located around the nucleus in a cloud.
The particles in the nucleus are
.
Water
stones
plastic plants
hope this helps!