Biology Questions

Embryonic Development- Now, the second fertilization ends, we start this next phase that is just 3 days long- this is when this new diploid nucleus starts dividing like CRAAAZY! TONS of new cells form

Organogenesis (embryo)- what happens is that the part of the neural plate will start to fold together- these parts that do the folding are called the

Organogenesis (embryo)- now, those neural folds are gonna fuse together to make this middle tube that we call

Embryonic Development- then, when the blastocyst is attached to the endometrium of the uterine wall, it starts to change a little bit- inside, ti forms these 2 circles on top of each otherthe one on top is smaller, and is called theand the bigger bottom one :

Pre-Fertilization- SO! let's go sperm!First, if a sperm does make it to the egg (which can be multiple), we gotta get past those 2 layers of the egg to hit the nucleus, remember em?

Embryonic Development- By week three, what happens to teh Bilaminar Disk of the blastocyst ....

Embryonic Development- what will the Endoderm become? (2)hint: it's at the bottom

Organogenesis (embryo)- These three parts of the Primitive Gut Tube we call theour guts!

Placental Development- so, it turns out the the blastocyst has something that actually combines with the uterine tissue and becomes the placenta, what's it called?

Organogenesis (embryo)- With Neurulation, it starts with teh top of the. blastocyst called the

Organogenesis (embryo)- Once the neural tube forms, it breaks off from the main Neural Plate and becomes it;s own thing- PLUS! Some cells break off from here and float along the crest of the Neural Tube that we call teh

Fertilization- Finally, this last stage is characterized by the mixture of Mom and Dad's DNA= Siploid Nucleus= Zygote

Development- and finally, from week 9 - birth we cal it

Now' we can call the zygote an embryo- so let's work on this phase that happens how fast after fertilization?

Embryonic Development- what will the Ectoderm (the top disk) become in the baby? (2)hint: if it's on top, it's most Superficial)

Organogenesis (embryo)- now, 2 things are happenig at the same time that helps create the main organs and stuff of the body (+nervous system!)they are called?

Embryonic Development- PS- remember how we gotta keep the corpus luteum alive in the ovaries so progesterone can be made? well the blastocyst does this by releasins ___ hormone

Pre-Fertilization- so basically, the we have 48 hours when we can release sperm into the mom-- so that sperm can survive long enough for Ovulation to start--- then we have 24 hours to until egg dies

Embryonic Development- Certain structures of the blastocyst are actually gonna become some pretty important things- for example, the perimeter of cells around the blastocyst, called the _________, will form what

Fertilization- So, only one sperm gets to fuse with the ____ ______ of the secondary oocyte