) In what layer of an embryo would you expect blood vessels to first develop? (Unit test due in two hours!) The inner layer
The middle layer
The outer layer
All layers at the same time

embryonic mesoderm...

your answer is below. please mark it pls.

Explanation:

endoderm

One of the germ layers developed during animal embryogenesis is the endoderm. The inner layer of the gastrula, which grows into the endoderm, is formed by cells migrating inwards along the archenteron. It is the first layer that needs to be created

idk lol use google m8

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.