What is a blastocyst
a. a sperm fused with an egg
b. a structure that nourishes the fetus
c. a ball of about 100 cells
d. an unfertilized egg

~~16. while watching a special on animals, brianna discovers that hares tend to lose heat through their ears. based on this and what is known about surface-to-volume ratios, propose an explanation as to why hares that live in hot climates (such as the desert) have large, extended ears

What is used to keep track of the gamates and possible offsprings combination

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.