During the first trimester of gestation, the embryo is attached to the placenta by the umbilical cord, and the placenta makes contact with the uterus. true false

Answer ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

What is an example of excretion in mammals?

What monomers build nucleic acid? how many are there?