1. Is a Bullfrog Internal Fertilization or a Internal Development? This animal lay 20,000 eggs 2. Is a Cat Internal Fertilization or a Internal Development? This animal lay 4 eggs
3. Is a Chicken Internal Fertilization or a Internal Development? This animal lay 6 eggs
4. Is a Tiger Internal Fertilization or a Internal Development? This animal lay 2 eggs

If it's both Internal Fertilization and Internal Development just write " Internal Fertilization and Internal Development"

1. Internal Development

2.Internal Fertilization

3.Internal Development

4.Internal Fertilization

answer by yourhope:

hi! : )

in which structure in the nucleus are ribosomes made?

b) nucleolus!

: )

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.