Scientists believe another Pangea is in Earth’s future. Explain why the evidence of tectonic plate motion supports this belief.

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?

Describe the structure of amino acid, including what makes amino acids different from eachother