The hollow crater formed during gastrulation is known as  

A.  acrosome
B.  archenteron
C.  morula
D.  cleavage furrow
E.  trophoblast


B.  archenteron

Biology & Microbiology

You might also like to view...

Growing bacteria that degrade an environmental pollutant, which is also toxic to the cells at artificially high concentrations, might require ________ to obtain a sufficient population for biochemistry studies

A) a continuous batch culture B) a second growth substrate to keep the culture in exponential growth phase C) steady state growth kinetics D) the use of a chemostat

Biology & Microbiology

Human development ____

a. is complete at birth b. begins at puberty c. is complete at puberty d. occurs only during adult life e. begins at conception

Biology & Microbiology

What force is attributed to giving water molecules special properties?

a. Solvent b. Covalent bonding c. Polarity d. Hydrogen bonding

Biology & Microbiology

Suppose that your mother and father are both healthy but carry the allele for cystic fibrosis, which is caused by a recessive allele. What are the odds of you having at least one allele for the disorder?

a. 1 in 4 b. 1 in 2 c. 3 in 4 d. 1

Biology & Microbiology