The effects of malnutrition during the critical development of tissues and organs can be reversed when adequate nutrients are supplied later in the pregnancy. a. true b. false

Answer;

The above statement is false

Explanation;

-The effects of malnutrition during critical periods are not reversible.

-Critical period is a finite period during development in which certain events may occur that will have irreversible effects on later developmental staff. Usually a period of cell division in a body organ.

-Effects of malnutrition includes; nervous system defects of the embryo , child's poor dental health , adolescent's & adult's vulnerability to infection , higher risk of diabetes, hypertension, stroke, or heart disease. These effects are irreversible.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.