Which of the following stages of embryonic development consists of only two layers of cells?
A. early gastrula
B. morula
C. late gastrula
D. blastula
Answer: A
Biology & Microbiology
You might also like to view...
A virus infects a host cell and takes over the host's mechanisms of replication and __________ synthesis. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
Which endocrine gland, A, B, C, D, or E, is the adrenal gland?
1.A
2.B
3.C
4.D
5.E
In what way was the interrupted mating technique used to generate a genetic map in E. coli based on time?
What will be an ideal response?
Biology & Microbiology
Hypoxic conditions __________
a) can promote the migratory properties of cancer cells, causing the spread of a tumor b) cause cancer cells to activate a transcription factor called HIF c) all of the choices are correct d) can cause cancer cells to induce the formation of new blood vessels
Biology & Microbiology