The inner layer surrounding the egg aloows only one sperm to enter the egg. why is this a benefit?

Hi! i’m not sure if i’m right can someone : ) deborah is attempting to understand her personality type and preferences in order to decide on her future profession. which personality assessment is most likely to give her the information she desires? a. big five test b. myers-briggs type indicator (mbt) [i think it’s this one not sure] c. thematic apperception test (tat) d. minnesota multiphasic personality imventory (mmpi-2)

Which of the following processes within viral replication is the greatest source of genetic variation in rna virus populations? a) high mutation rate due to lack of proofreading of rna genome replication errors.b) transcription from the host cell rna polymerase introduces numerous mutations.c) capsid proteins from the host cell can replace the viral capsid.d) viral rna is translated by host cell ribosomes.

Why is important to keep your health triangle balanced?