Why does only one egg rather than four eggs develop during oogenesis given that spermatogenesis results in for sperm being formed from one stem cell?

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

You see a white marker with an orange circle and black lettering. what does this marker tell you

What are the three groups of atoms that make up amino acids called