Which of the following is the correct sequence of events during pre-embryonic development?

A) morula ? zygote ? implantation ? blastocyst
B) implantation ? zygote ? morula ? blastocyst
C) zygote ? morula ? blastocyst ? implantation
D) zygote ? blastocyst ? morula ? implantation


C

Biology & Microbiology

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What will be an ideal response?

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_____ refers to the process by which microbes gain a more stable foothold at the portal of entry though interaction of their molecules with host cell receptors.

Fill in the blank(s) with the appropriate word(s).

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