How were the discoveries of schleiden and schwann alike?

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium

Why should organisms reproduce more offspring than will survive? select all that apply.