Looking at the outside of a mammalian blastocyst, some of the cells that you see will become what extraembryonic structure?Multiple Choiceectodermendodermmesodermplacenta

Protostomes are animals in which the embryonic blastopore becomes theMultiple choice question.anusmesodermmouthectoderm

Where are the stem cells located in this embryo?a) Inner cell mass b) Blastocoel c) Blastomeres d) Blastocyst

What is a cell with a complete extra set of chromosomes called?

Which of the following is found in a group other than animals?Multiple ChoiceThey have cell walls.They have a developmental stage called a blastula.They are multicellular eukaryotes.They are heterotrophs.They secrete and bind to an extracellular matrix.

The extracellular matrix interacts with which cellular structure?