Which of the following does not occur during the embryonic stage? a. the bones become fully developed. b. the tail begins to recede. c. the heart, brain, and spinal cord develop. d. the eyes and ears begin to form.

Answer;

The bones are fully formed

-This dose not occur during the embryonic stage.

Explanation;

-Embryonic stage is a stage of development which is a period after implantation, during which all the major organs and structures within a growing fetus are formed. For example, the tail begins to recede, the heart, brain, and spinal cord develop and also the eyes and ears begin to form among other events.

-The embryonic stage lasts from implantation up to around 8 weeks from the time of conception.

A.)  The bones become fully developed.

Explanation:

on edg its right took test.

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enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products